Principia is present in a wide spectrum of industrial sectors, especially oil & gas, wind power, civil engineering, mechanical engineering, defence/aerospace, nuclear energy, etc. Within the field of applied mechanics, we concentrate on the structural and mechanical areas, with also notable activity in seismology, fluid dynamics, and geotechnical engineering.
A high percentage of our work involves R&D activities. In many areas, from energy generation to manufacturing processes, new technologies tend to underlie the requests from our customers. We also participate frequently in international research projects.
The problems we study are usually infrequent and also complex to analyse, which is why specialised consultants are required. Our high degree of specialisation allows us to optimise the solution of such problems for our clients.
Additionally we sell and support in Spain and Portugal the SIMULIA products of Dassault Systèmes. They include the well-known finite element code Abaqus, with especially powerful dynamic and non-linear capabilities and which Principia employs in most of its consulting work.
Principia Mechanica Ltd. is based in London.
Principia begins to operate as a Spanish company.
Abaqus agent program in Spain and Portugal.
Partner of Dassault Systèmes in Spain and Portugal.
Principia currently employs a team of 11 staff, 9 of them engineers and 2 for administration and support. It is a very stable and highly qualified team.
Out of the 9 engineers of different specialities, 6 of them have a PhD. The average experience of our technical staff is 18 years and the length of their employment in Principia averages 14 years.
Martínez, F., Astiz, M.A., Fernández, R. (2015) “Design of an LNG Tank for Accidental Loads in Finland”, IABSE Workshop on Safety, Robustness and Condition Assessment of Structures, Tuusula (Finland), February 11th – 12th.
Borgerhoff, M. Rodríguez, J. Schneeberger, C. Stangenberg, F. and Zinn, R. (2015) “Knowledge from Further IMPACT III Tests of Reinforced Concrete Slabs in Combined Bending and Punching” SMiRT-23, 23rd International Conference on Structural Mechanics in Reactor Technology, Manchester, United Kingdom, 10-14 August.
Afkari, D., Gabaldón, F. (2015) “Fluid-solid interaction in arteries incorporating the autoregulation concept in boundary conditions”, Computer Methods in Biomechanics and Biomedical Engineering, Volume 19, Issue 9, 17th September..
Crespo, M.J. Rodríguez, J. Lacoma, L. Martínez, F. Martí J. (2015) “Enseñanzas Derivadas del Benchmark SMART 2013”, 41 Reunión Anual de la Sociedad Nuclear Española, La Coruña, 23-25 septiembre.
Crespo, M.J., Martínez, F., and Martí, J. (2014) “Seismic Hazards of the Iberian Peninsula – Evaluation with Kernel Functions”, Natural Hazards and Earth System Sciences. Discussions, No. 1, pp. 3763-3811, ISSN 2195-9269, 23 May. (http://www.nat-hazards-earth-syst-sci.net/14/1309/2014/nhess-14-1309-2014.pdf)
González, P., Riera, F., and González, J. (2014) “Numerical Calibration of the Mechanical Properties of an Adhesive Material”, European Conference on Composite Materials, Seville, Spain, 22-26 June.
Zinn, R., Borgerhoff, M., Stangenberg, F., Schneeberger, C., Rodríguez, J., and Lacoma, L. (2014) “Analysis of Combined Bending and Punching Tests of Reinforced Concrete Slabs within IMPACT III Project”, EURODYN, IX International Conference on Structural Dynamics, Porto (Portugal), 30 June – 2 July.
Martí, J. (2014) “Editorial: Whence and Whereto?”, Environmental Geotechnics, Vol. 1, Issue EG3, August, ICE Institution of Civil Engineers, p. 135.
Crespo, M.J., Silva, P., and Sánchez-Cabañero, J.G. (2014) “Guía de Seguridad SSG-9 y Documentos Técnicos de Apoyo”, 40ª Reunión Anual de la Sociedad Nuclear Española, Valencia (Spain), 1-3 October.
Crespo, M.J., Martí, J., and Martínez, F. (2014) “Incorporación de Actividad Sísmica no Reflejada en el catálogo en Métodos no Zonificados”, Iberfault 2014 – 2ª Reunión Ibérica sobre Fallas Activas y Paleosismología, Lorca, Murcia (Spain), 22-24 October, pp. 1-4.
Afkari, D., Gabaldón, F., and Rodríguez, J. (2014) “Comparison of Implicit and Explicit FSI Coupling Strategies in Cardiovascular System”, IV Reunión del Capítulo Español de la Sociedad Europea de Biomecánica (ESB), Valencia (Spain), 20-21 November.
Rodríguez, J., Martí, J., Martínez, F., Schneeberger, C., Zinn, R., (2013), “Analysis of Punching of a Reinforced concrete Slab within IRIS_2012”, SMIRT, 18-23 August.
Rodríguez, J., González, P., Martínez, F., and Martí, J. (2012) “Concrete Swelling in a Double Curvature Dam”, ICAAR-2012, 14th International Conference on Alkali-Aggregate Reaction, Austin, Texas, 20-25 May.
Crespo, M.J., Martí, J., and Martínez, F. (2012) “Seismic Activity Rates in the Iberian Península”, 15th World Conference on Earthquake Engineering , Lisbon, Portugal, 24-28 September.
Gonzalez, J., Rodriguez, M.C., Riera, F., Gonzalez, P. (2012) “Design of Stringer Run-out by Numerical Simulation”, 7th International Technical Conference & Forum, Society for the Advancement of Material and Process Engineering (SAMPE), Lucerne, Switzerland, 19-20 September.
Rodríguez, J., González, P., Martínez, F., and Martí, J. (2011) “Concrete Swelling in Existing Dams”, 2011 SCC SIMULIA Customer Conference , Barcelona, Spain, 17-19 May.
Crespo, M.J., Martínez, F., and Martí, J. (2011) “Peligrosidad Sísmica en la Península Ibérica”, 4CNIS, 4º Congreso Nacional de Ingeniería Sísmica, Granada, Spain, 18-20 May, ISBN 978-84-338-5195-6.
Rodríguez, J., González, P., Martínez, F., and Martí, J. (2011) “Concrete Swelling in Two Spanish Dams”, XI ICOLD Benchmark Workshop on Numerical Analysis of Dams, Open Technical Section, Valencia, 20-21 October.
Rodríguez, J., Lacoma, L., Martínez, F., and Martí, J. (2011) “Contribution to Theme A of the Benchmark Workshop: Effect of Concrete Swelling on the Equilibrium and Displacements of an Arch Dam”, XI ICOLD Benchmark Workshop on Numerical Analysis of Dams, Valencia, 20-21 October.
Rodríguez, J., Martí, J., and Martínez, F. (2010) “Post-cracking Behaviour of a Wind Turbine Concrete Tower”, 2010 SCC SIMULIA Customer Conference , Providence, RI, USA, 25-27 May.
Rodríguez, J., Martí, J. y Serna, J. (2009) “Comportamiento Dinámico de una Torre de Hormigón”, Congreso de Métodos Numéricos en Ingeniería, Barcelona, 29 junio – 2 julio.
Martí, J., Crespo, M.J., and Martínez, F. (2009) “Diseño y Verificación de la Cimentación de los Tanques de GNL de Dahej (India)”, Revista Escuela de Minas de Madrid. Ingenieros de Energía, Minas y Geología , no. 6, pp.142-151, ISSN 1889-4739.
Martínez, F., Crespo, M.J. y Martí, J. (2007) “El Aislamiento Sísmico en Tanques de GNL”, III CNIS: Congreso Nacional de Ingeniería Sísmica, Gerona, 8-11 mayo.
Bergamo, G., Castellano, M. G., Gatti, F., Martí, J., Poggianti, A. and Summers, P. (2007) “Seismic Protection at Petrochemical Facilities: Main Results from INDEPTH Project, 10th World Conference on Seismic Isolation, Energy Dissipation adn Active Vibrations Control of Structures, Istambul, Turkey, 28-31 May.
Crespo, M.J. and Martí, J. (2007) “Piles in Soft Clay Subjected to Long-Duration Seismic Action”, Workshop on Earthquake Geotechnical Codes, 4th International Congress on Geotechnical Earthquake Engineering, Thessaloniki (Greece), 25-29 June.
Rodríguez, J., Goicolea, J.M. and Gabaldón, F. (2007) “A Volumetric Model for Growth of Arterial Walls with Arbitrary Geometry and Loads”, Journal of Biomechanics 40, 967-971.
Martí, J. and Crespo, M. J. (2005) “Benefits of Seismic Isolation for LNG tanks”, International Seminar on Seismic Isolation and Energy Dissipation for the Protection of Petrochemical Facilities Against Earthquakes, Bologna, Italy, 31 August.
Crespo, M. J. and Martí, J. (2005) “Seismic Vulnerability of LNG Tanks”, International Seminar on Seismic Isolation and Energy Dissipation for the Protection of Petrochemical Facilities Against Earthquakes, Bologna, Italy, 31 August.
Rodríguez, J., Martínez, F., Martí, J. and Omnes, S. (2005) “Punto Frío y Fuga Mayor con Sismo de Operación en Tanques de Gas Natural Licuado”, X Spanish Users’ Meeting, Madrid, 11 November.
Rodríguez, J. and San Vicente, J.L. (2005) “Ejemplo de Aplicación de Rutinas de Usuario y Scripting en ABAQUS”, X Spanish Users’ Meeting, Madrid, 11 November.
Gatti, F., Dorfmann, L., Poggianti, A., Castellano, G., Martí, J., Summers, P., Karabalis, D., Silbe, H. y Skandalis, N. “The EC-Funded Project INDEPTH”, 8th World Seminar on Seismic Isolation, Energy Dissipation and Active Control of Vibrations of Structures, Yerevan, Armenia, 6-10 octubre.
San Vicente, J.L. and Martínez, F. “Pretest Analysis of a 1:4 Scale Prestressed Concrete Containment Vessel”, ABAQUS Users’ Conference, Newport, RI, EEUU, 28-31 May.
Riera, F. and Marti, J. “Demandas Físicas en una Cápsula de Almacenamiento”, V Congreso de Métodos Numéricos en Ingeniería, Madrid, 3-6 June.
Crespo, M.J., Martínez, F. and Martínez, A. “Diseño de un Absorbedor frente a Impactos”, V Congreso de Métodos Numéricos en Ingeniería, Madrid, 3-6 June.
Pérez-Rodriguez, J.L., Márquez, J., Pemán, S., Martí, J., San Vicente, J.L., Enríquez, C. and Álvarez, V. “Diseño de Bultos Tipo B para Transporte de Fuentes Radiactivas con Emisores Alfa y Neutrónicos”, 28 Reunión Anual de la Sociedad Nuclear Española, Salamanca, 11-13 September.
Crespo, M.J. and Martí, J. “The Use of a Zoneless Method in Four LNG Sites in Spain”, 12th European Conference on Earthquake Engineering, Londres, 9-13 September.
Crespo, M.J. and Martínez, F. “Diseño de un Absorbedor Frente a Impactos”, VII Spanish Users’ Meeting, Madrid, 8 November.
Martí, J., Martínez, F., Crespo, M.J. and Alcántara, D.G. “Cargas Anormales en Tanques de GNL”, II Congreso de ACHE de Puentes y Estructuras, Madrid, 11-15 November.
Martínez, F., Martí, J., San Vicente, J.L. and Alcántara, D.G. “Capacidad Última de una Contención Nuclear de Hormigón Pretensado”, II Congreso de ACHE de Puentes y Estrucutras, Madrid, 11-15 November.
Martí, J., Riera, F. and San Vicente, J.L. “Dynamic Failure of a Dam Following Tailings Liquefaction (Part II)”, ABAQUS Users’ Conference, 30 May – 1 June, Maastricht, Holland.
Martí, J., Riera, F. and Mayoral, F. “Effects of Physical Demands on a Radwaste Canister”, 16th International Conference on Structural Mechanics in Reactor Technology SMiRT 16, Washington, EEUU, 12-17 August.
Martí, J., Riera, F. and Mayoral, F. “Impact of Dropped Elements on a Storage Rack”, 16th International Conference on Structural Mechanics in Reactor Technology SMiRT 16, Washington, EEUU, 12-17 August.
San Vicente, J.L., Beltrán, F. and Martí, J. “Ultimate Capacity of Expansion Bellows in a BWR Containment”, 16th International Conference on Structural Mechanics in Reactor Technology SMiRT 16, Washington, EEUU, 12-17 August.
Crespo, M.J. and Martí, J. “Estudio Sísmico de un Túnel sobre Pilotes”, VI Spanish Users’ Meeting, Zaragoza, 16 November.
Riera, F. and San Vicente, J.L. “Análisis de Impacto en la Industria del Ferrocarril con ABAQUS/Explicit”, VI Spanish Users’ Meeting, Zaragoza, 16 November.
San Vicente, J.L., Beltrán, F.J. and Martí, J. “Capacidad Última de los Fuelles de Expansión en un Reactor BWR”, 26 Reunión de la Sociedad Nuclear Española,. León, Spain, 5-7 October.
Crespo, M.J. and Martí, J. “Efectos Térmicos del Fraguado del Hormigón en una Presa”, V Spanish Users’ Meeting, Madrid, 17 November.
Beltrán, F., Martí, J. and Robledo, F. “Containment Loads and Containment Structural Analysis”, Eurocourse on Analysis of Severe Accidents in LWRs, Madrid, España, October.
Gabaldón, F., Goicolea, J.M. and Martínez, F. “Análisis de la Contribución de los Modos Incompatibles en Problemas de Localización”, III Congreso de Métodos Numéricos en Ingeniería, Zaragoza, Spain, 3-6 June, pp. 897-906.
Martínez, F., Goicolea, J.M. and Marín, J. “Localización de Deformaciones en Probetas de Hormigón”, III Congreso de Métodos Numéricos en Ingeniería, Zaragoza, Spain, 3-6 June, pp. 917-925.
Martí, J., Martínez, F. and Mayoral, F. “A Simplified Procedure for Analysis of Flask Impact”, Fourth International Conference on Structures under Shock and Impact SUSI 96, Udine, Italy, 3-5 July.
Beltrán, F. and Martí, J. “Earthquake Response of and Arch Dam Including the Nonlinear Effects of Contraction Joint Opening”, 4th ICOLD Benchmark Workshop on Numerical Analysis of Dams, Madrid, Spain, September.
Durán, J. and Martí, J. “Seminar on Principles and Methodology for Improved Management of Cooling Water Reservoirs in South Ukraine NPP”, Meeting of the Ukraine Nuclear Society, Odessa, Ucrania, 14-16 October.
Beltrán, F., Rico, G., Martí, J. and McCreesh, G. “A Study of Aircraft Impact on a Spent Fuel Flask”, 22nd Annual Meeting of the Spanish Nuclear Society, Santander, Spain, 22-26 October.
López Arroyo, A., Martí, J. and Kunar, R.R. “Risks Associated to Fixed Link across the Strait of Gibraltar”, 4th International Colloquium on the Fixed Link across the Strait of Gibraltar, Sevilla, Spain, 16-18 May.
Martínez, F., Rico, G., Franganillo, A. and Climent, H. “Bird Impact on an Aircraft Leading Edge”, ABAQUS Users’ Conference, Paris, Francia, 31 May – 2 June, pp. 565-577.
Azkárate, I. and Martí, J. “Comportamiento Estructural y Selección de Materiales Metálicos para Cápsulas: Parámeteros y Ensayos”, 2nd ENRESA Workshop on R&D, Madrid, Spain, 13-15 June.
Vázquez, J.M., Beltrán, F. J., Martí, J. and Martínez, F. “Swelling of Spent Fuel Storage Tubes”, 13th International Conference on Structural Mechanics in Reactor Technology SMiRT 13, Vol IV, pp. 401-406, Porto Alegre, Brasil, 13-18 August.
Martí, J., González, G., Martínez, F. and Mayoral, F. “A Simplified Procedure for Analaysis of Flask Impact”, International Seminar on Waste Repository Technology and Management, Iguazú, Argentina, 21-23 August.
Castro, F., Muñoz, J.A., Junquera, A., Beltrán, F. and González, G. “Modelo Numérico para un Material Compuesto Ortótropo no Lineal”, Congreso Nacional de Materiales Compuestos, Sevilla, Spain, November.
Martínez, F., Goicolea, J.M., and Ortiz, M. “Numerical Analysis of Strain Localization in Concrete Specimens under Different Loading Paths”, Computational Plasticity. Fundamentals and Applications (ed. D.R. Owen, E. Oñate y E. Hinton), Vol II, pp. 2373-2384.
Martínez, F. “Análisis de Fenómenos de Localización en Materiales Cohesivo Friccionales”, Informes de la Construcción, vol. 46, no. 432, July-August, pp. 45-56.
Beltrán, F.J., Gómez-Cano, F., García-Monge, J., Suárez, J. and Otero, M. “Evaluación del Margen Sísmico (IPEEE) de C.N. Vandellós II”, XX Reunión Anual de la Sociedad Nuclear Española, Córdoba, Spain, October.
Beltrán, F.J., Mateos, A. and Baldó, O. “Cálculo y Experimento en Procesos de Conformado Superplástico”, Anales de Ingeniería Mecánica, año 10, vol. 1, November, pp. 137-144.
Baldó, O., Díaz, J., Martínez, F., Beltrán, F.J., Mateos, A. and Rico, G. “Numerical Simulation of Superplastic Forming/Diffussion Bonding Processes”, Superplasticity Conference: 60 Years after Pearson, 7-8 December, Manchester, UK.
Martínez, F. and Goicolea, J.M. “Estudio de Algunos Problemas Básicos de Localización de Deformaciones Mediante Elementos Finitos”, Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería, vol. 10, no. 3, pp. 209-236.
Goicolea, J.M. and Martínez, F. “Low Velocity Impact of a Deformable Multi-Body System”, Third International Conference on Structures under Shock and Impact SUSI/94 (ed. P.S. Bulson), Computational Mechanics Publications, Southampton, UK.
Martínez, F., Goicolea, J.M. and Ortiz, M. “Numerical Analysis of Strain Localization in Concrete Specimens”, Proceedings of the International Conference of Computational Modelling of Concrete Structures EURO-C 1994 (eds. H. Mang, N. Bicanic y R. Borst), Vol. I, pp. 352-362.
Martí, J. “Capacidad Estructural de la Contención”, Cap. 17 en “Accidentes Serveros en Reactores de Agua Ligera”, (ed. A. Alonso), Universidad Politécnica de Madrid, Spain.
Martí, J. “Impact Analysis of Transport Flasks”, Cap. 8 en “Shock and Impact on Structures” (ed. C. Brebbia y V. Sánchez Gálvez), Computational Mechanics Publications, pp. 261-278.
After earning his first degree in Iran, Mr Afkari joined SGS Iran Ltd, where he worked for over three years in the area of natural gas vehicles and compressed natural gas cylinders. He was also employed for one year by Iran Aerospace Industries, where he was involved in sheet metal applications.
Already in Spain, Mr Afkari joined Principia in 2006. Since then he has participated in a large number of projects, primarily in the structural dynamics area. Particularly relevant is his contribution to storage tanks for liquefied natural gas in various parts of the world, for which he has analysed seismic effects, earthquakes, fires, leaks, explosions and other postulated design events.
He has considerable experience in the simulation of fluid-structure interaction problems, having worked with a variety of computational fluid dynamic (CFD) programs. He has also carried out complex structural modelling work for many other industries. Worthy of special mention is his work in relation with many aeronautical structures, with problems encountered by the wind power industry, as well as bridges and other civil structures.
Damon is the author of 4 technical papers in his areas of specialisation. Besides Spanish, he is also fluent in English and Farsi.
María José Crespo
During her studies she spent one academic year (1997-98) at the Paris École Nationale des Ponts et Chaussées in Paris and also worked as an intern for ISL simulating the construction and assessing the stability of an earth dam. During the last year of her studies in Madrid, she collaborated with the Department of Continuum Mechanics, with a research grant from the Betancourt Foundation, where she conducted dynamic analyses of the response of a storage tank for liquefied natural gas. Her doctorate studies were carried out while working in the company and she still maintains contact with the university as an Adjunct Professor at the School of Mines.
Since joining Principia in 1999, her professional activity has concentrated primarily in seismology and earthquake engineering problems. In particular she has evaluated the seismic hazard for at least two dozen sites in various continents, for petrochemical, nuclear and other facilities, using both traditional procedures and the more recent zoneless methods. She maintains ongoing collaborations with IAEA, OECD-NEA, the Spanish nuclear regulator CSN, and is also a member of the committee in charge of updating the official seismic hazard map of Spain.
Also related to earthquakes, she has conducted dynamic analyses of the seismic response of a number of structures, particularly liquefied natural gas tanks (in Spain, Egypt, India, Mexico, etc.), as well as bridges and underground works. Moreover, she has also participated in European research projects dealing with seismic isolation and related subjects.
She has also contributed to other projects: impact problems, human induced vibrations, wind effects, dynamic evaluation of pile groups, coupled thermo-mechanical problems, etc. Dr Crespo also leads the technical support provided to users of Abaqus and other SIMULIA products.
She is the author of more than 20 technical publications. Besides Spanish, she is also fluent in English and French.
She conducted her degree project at Airbus during 2006. The project consisted in organising numerical tools to automate the analysis of the maximum stresses developed at the rivets joining metallic components, with the object of using those results in fatigue analyses under biaxial loading conditions.
Following her incorporation to Principia at the end of 2006, she has participated in many projects concerned with structural dynamics, primarily for the aeronautical industry, particularly developing non-linear models for the analysis of parts made with composite materials; more specifically she has worked for the A-380, A-400M and the A-350 aircraft.
She has also carried out several projects for the nuclear industry, investigating impact problems related with the accidental drop of fuel elements and other objects onto the storage racks of the spent fuel pools of nuclear power plants in various countries.
In the civil field, she has conducted extensive analyses of many dams suffering from concrete swelling problems. She has also been involved in the analysis of a penstock distributor undergoing large pressure changes, triggering cavitation and column separation.
Apart from her activities in consultancy projects, Ms González is also responsible for coordinating all courses and training that Principia provides to Abaqus and SIMULIA products users.
Ms González is the author of 4 technical publications in her areas of expertise. Besides Spanish, she is also fluent in English.
After completing his doctoral work, he was employed until 2010 in NextLimit Technologies, where he was one of the two members of the team in charge of developing XFlow, a computer program for computational fluid dynamics (CFD) based on particle methods. During that period he also participated in numerous consultancy projects, ranging from aerodynamics effects on structures, to aeroacustic analyses and to the simulation of fluid processes in both industrial and biological applications.
Dr. Lacoma joined Principia in 2010. Being specialised in the solution of fluid dynamics problems using CFD methods, he contributes capabilities that are complementary to those in the structural dynamics field that represented the largest part of Principia’s activity. As such he has worked on fluid-structure interaction problems, such as the new locks of the Panama Canal, the seismic vulnerability of the Mequinenza and Ribarroja dams, penstocks and hydraulic equipment. He also has experience in wind effects on structures, cavitation phenomena in spillways and other facilities.
Besides his work on projects involving CFD simulations, Dr Lacoma also participates in structural dynamics projects which require the use of advanced methodologies in finite element calculations. Recent examples are provided by his work on vibration of aircraft engines, behaviour of the foundations of wind turbine towers, structural response of a flask for spent nuclear fuel, or the analysis of concrete swelling in dams.
He is the author of more than 20 technical publications in conferences and academic journals, 6 of which in international venues. Besides Spanish, Dr. Lacoma is also fluent in English.
After his doctoral work, he started his career at the Advanced Technology Group of Dames & Moore in London (1975-79). He has been linked to Principia since 1980, first in London as Senior Engineer and Founding Partner (until 1984) and then in Madrid. His academic activity began in 1984 and he became a full Professor in 1990.
Prof. Martí specialises in the solution of dynamic non-linear problems and, particularly, on the numerical aspects of their treatment. He has worked primarily in problems of vibrations, impact, seismic effects, large dynamic deformations, explosions, ground stability, metal forming and other problems within the non-linear dynamics field.
His contribution spreads over very diverse industrial areas: nuclear, aerospace, civil, defence, mining, hydrocarbons, manufacturing, etc.; he has generally worked for all the industrial sectors that share an interest in his technical field. Although most of his work is carried out in support of designers, he also has considerable experience in other related aspects, such as conducting technical audits and serving as expert witness in legal cases, including well known cases like the Aznalcóllar tailings pond or the Prestige tanker.
He is the author of about one hundred and fifty technical publications, most of them published in international venues such as in books, journals and conference proceedings, including invited papers and keynote lectures. He has participated in the organisation of some thirty conferences, courses, colloquia, etc.; he is also a member of many technical and professional associations, including ASCE where he is a life member and has the rank of Fellow. Besides Spanish, Prof. Martí is also fluent in English and French.
His professional career has always developed in Principia, where he started working in 1987. His doctorate studies were conducted while working in the company. He started lecturing in 1992 and became a tenured Associate Professor in 1996.
Dr Martínez started working primarily in the area of structural mechanics, specializing in problems such as cracking, strain localization, damage mechanisms and constitutive modelling of structural materials. Also worthy of mention are his studies in non-linear dynamics; impact, seismic effects, large dynamic deformations, explosions and metal forming. He is particularly competent in the numerical and computer simulation aspects of the solution of such problems.
He is involved in practically every project carried out by Principia and has therefore been active in many industrial sectors, but a special mention must be made of his participation in some 60 projects of storage tanks for liquefied natural gas, in at least 20 of which he had overall responsibility for the civil design.
Another area in which he is very experienced is that of wind turbine towers and their foundations, having carried out some 50 projects, some in support of the designers, others to understand and remedy the problems experienced by some towers.
He has also been involved in many projects dealing with soil-structure and fluid-structure interaction, impact analysis and a variety of structural dynamics problems. Dr Martínez is also experienced as a technical auditor in legal cases and post-failure investigations.
He is the author of well over 50 technical publications, mostly international in character, which have been published in professional journals and scientific or technical conferences. He is a member of five professional associations. Besides Spanish, Dr Martínez is fluent in English and has moderate knowledge of German and French.
Following completion of her university studies she joined MSC Software, where for 9 years she was involved in consultancy and commercial activities in relation with the company’s software.
She moved to Principia in 2007, where she was given overall responsibility for managing the SIMULIA products, which Principia represents in Spain since the late eighties. In her capacity she manages presales activities like benchmarks, as well as the technical support to users, organisation of courses, users’ meetings, etc.
Throughout her professional life Rocío Núñez has specialised in the numerical simulation of the complex structural problems faced by her clients, with particular emphasis on non-linear problems. She has been active in many industrial sectors, but her contributions are especially noteworthy in the automotive area (impact analyses, global or partial models of the structure of various vehicles, etc) and the aerospace sector (simulation of the behaviour of different aircraft structures, development of methodologies for verification of FE models, etc.).
Apart from those industrial sectors, Ms Núñez has also been active in a wide range of industries sharing similar needs, such as the energy generation based on renewable sources, the design and construction of mechanical parts, or biomedical companies.
Rocío Núñez has published two technical papers in her area of specialisation. Besides Spanish, she also speaks English and has moderate knowledge of French.
During his studies, he was an intern at Cemento Nacional (1997), working during the construction of an electricity generating plant in Guayaquil. Following completion of his course work, his Degree Project was carried out at the School of Mines in Madrid, where he analysed impacts of radioactive waste canisters in the context of a collaboration agreement with ENRESA. He conducted his doctoral work in the same School, again on problems associated with canisters for nuclear waste and irradiated fuel.
Since he joined Principia in 1999, he has participated in a large variety of projects, mainly related with the dynamic analysis of structures: impact, metal forming, collapse, etc. However, his main contribution has been in the aerospace sector, where he has accumulated considerable experience analysing composite parts under static and dynamic loads, with particular emphasis on aspects like bird impact and other fast transients.
Apart from the aeronautical field, he has also worked in the geotechnical area, analysing ground stability and porous flow problems; his contribution to the investigation of the causes of failure of the Aznalcóllar tailings dam is notable in this regard.
On the same line of his doctorate work, Dr Riera has worked on a number of projects dealing with the mechanical and thermal behaviour of flasks for storage and transport of radioactive materials.
Concerning fluid mechanics, Dr Riera has carried out many projects on the dispersion of effluents in water bodies and he also participated in other projects, like the simulations of the extraction of fuel from the Prestige tanker.
Dr Riera is the author of 7 technical publications. Besides Spanish, Dr Riera is also fluent in English.
In 1999 he was an intern in the R&D Department of NECSO, where he was later employed as an Engineer during 2000-01. Under a scholarship from the Ministry of Science and Technology, he then went to the Department of Continuum Mechanics in the School of Civil Engineering in Madrid, where he worked on the development of a simulation system of arterial walls and blood flow, combining it with some teaching activities in the Department and with professional collaborations with the Foundation for Cardiovascular Research and Development.
Javier Rodríguez joined Principia in 2003, where he has worked in the numerical solution of a great variety of problems. One of his more significant contributions are the studies carried out for dams undergoing concrete swelling phenomena. He has also conducted many studies of fluid structure interaction to evaluate the seismic performance of dams, the new locks of the Panama Canal, large pressure transients and cavitation in a penstock distributor, etc.
Dr Rodríguez has also conducted a large variety of studies in relation with wind towers, particularly in respect of dynamic and fatigue phenomena, including both concrete and steel towers, onshore and offshore. He has investigated the vibrations of aircraft engines, the perforation of reinforced concrete slabs by soft and rigid missiles, the dynamics of bridges, etc. Perhaps worthy of special mention are his activities in the context of storage tanks for liquefied natural gas, for which he studied seismic effects, explosions, leaks, and other postulated events.
He is the author of over 40 technical papers published in conferences, congresses and specialised journals. Besides Spanish, Javier Rodríguez is also fluent in English.
His graduate work was conducted at the Carlos III University and the University of Oxford. It dealt primarily with the mechanics of bio-inspired materials, with particular attention to the static and dynamic characteristics of spider orb-webs.
Following his incorporation to Principia at the beginning of 2017, he has participated in projects concerned with structural dynamics and advanced modelling of concrete, primarily in relation with the ITER fusion facilities.
Apart from his activities in consultancy projects, Dr Soler is also involved in the technical support and training courses that Principia provides to Abaqus and SIMULIA products users.
Dr Soler is the author of 8 technical publications in his areas of expertise. Besides Spanish, he is also fluent in English.