WIT Staff

Santiago Hernandez

Professor Santiago Hernandez is an Adjunct Professor
the Wessex Institute (WIT), Ashurst, Southampton, UK.

Santiago is Full Professor of Structural Engineering at the University of Coruna (Spain). He has extensive experience in structural analysis and design in several fields, ranging from long-span bridges to historical buildings and aircraft. He is well known for his expertise in aeroelasticity and for the application of numerical optimization techniques to engineering design. He is an ASCE and IABSE Fellow, an Associate Fellow of AIAA and also possesses the Eminent Scientist Medal from WIT. He has participated in a large number of research projects at national and international level. He has almost three hundred scientific publications, has authored several books and edited books written by leading scientists.

Major contributions to WIT activities

Santiago has been involved with WIT for many years, collaborating in the organisation of short courses and conferences. He was appointed to WIT’s Board of Directors in 1991 and has been involved in shaping the strategy of the Institute since that time. Most recently he held the position of Chief Academic Officer at WIT.

Main areas of expertise

Structural Analysis
Bridge Engineering
Structural Dynamics
Aeroelasticity
Multidisciplinary Optimization in Civil and Aircraft Engineering

Education

Ph. D. University of Santander, Spain, 1982
MSc Civil Engineering, Universidad Politécnica de Madrid, 1975

Summary of significant personal achievements in research

1993-present: Full Professor, School of Civil Engineering, University of Coruña
1984-1993: Associate Professor, Department of Mechanical Engineering, University of Zaragoza, Spain.
1984. Visiting Researcher: Department of Mechanical Engineering, University of Southampton (UK)
1989. Visiting Researcher: Department of Mechanical and environmental Engineering, University of California in Santa Barbara (USA)
2015-Present. Director of the Master on Structures and Materials for Aerospace Engineering, University of Coruña
1993-1999. Vice Dean of the School of Civil Engineering, University of Coruna, Spain
1992-1996. Coordinator of the Ph. D. Program on Civil Engineering, University of Coruña, Spain
1986-1989. Vice-chancellor, University of Zaragoza, Spain

Fellow: IABSE, International Association of Bridge and Structural engineering, 2016
Distinguished Professional Achievements Medal: Colegio de Ingenieros de Caminos, Canales y Puertos (Spanish Association of Civil Engineers), 2015
Distinguished Service Award: AIAA Technical Committee of Multidisciplinary Design Optimization of AIAA, 2013.
Associate Fellow: AIAA, American Institute of Aeronautics and Astronautics, 2009
Fellow: ASCE, American Society of Civil Engineers, 2007

PhD Theses

Supervised 12 PhD theses between 1992 and 2017 on various aspects of aerospace and bridge design.

Research projects

Several different aerospace and bridge research projects with the Spanish Ministry of Research, Airbus and under the EU Framework program.

Selected collaborations with industry

Principal Investigator in a large number of different projects with various industrial partners on bridge engineering, including many construction companies in Spain; wind turbine towers engineering, with ACCIONA Wind Power; and aircraft engineering, with Airbus.

Publications

Books

Hernandez, S. and Fontán, a. N., Mecánica de Medios Continuos (Introduction to Continuum Mechanics). Andavira, 2016.

Jurado, J. Á and Hernández, S., Análisis estructural de placas y láminas, (Structural Analysis of Plates and Shells). Andavira, 3rd ed., 2014.

Análisis lineal y no lineal de estructuras de barras (Linear and Nonlinear Analysis of Structures). University of Coruña Press, 2nd ed. 2013.

Hernandez, S. and Fontan A. N., Linear and Non-linear Continuum Solid Mechanics. WIT Press, 2018(in press).

Jurado, J. A., Hernandez, S., Nieto, F. and Mosquera, A. Bridge Aeroelasticity. Sensitivity Analysis and Optimal Design, WIT Press, 2011.

Journals

• Hernandez, S., Menga, E., Naveira, P., Freire, D., Lopez, C., Cid Montoya, M., Moledo, S., Baldomir, A., Dynamic analysis of assembled aircraft structures considering interfaces with nonlinear behaviour. Aerospace Science and Technology Vol 77, pp 265-272, 2018.

• Cid Bengoa, C., Baldomir, A., Hernandez, S., Romera, L., Multi-model reliability-based design optimization of structures considering the intact configuration and several partial collapses. Research Journal on Structural and Multidisciplinary Optimization. Vol 57, issue 3, pp 977-994, 2018.

• Lopez, C., Baldomir A., Hernandez, S., The relevance of reliability-based topology optimization in early design stages of aircraft structures. Research Journal on Structural and Multidisciplinary Optimization. Vol 57, issue 1, pp 417-439, 2018.

• Hernandez S., Menga E., Moledo S., Romera L. E., Baldomir A., Lopez M., Cid Montoya, M., Optimization approach for identification of dynamic parameters of localized joints of aircraft assembled structures. Aerospace Science and Technology Vol 69, pp 538-549, 2017.

• Cid Montoya M., King J.P.C., Kong L. Nieto, F., Hernandez S., A Method for improving the dynamic response of full bridge reduced-scale models in aeroelastic wind tunnel test by using optimization algorithms.Journal of Wind Engineering and Industrial Aerodynamics, Vol. 167, pp. 198-216, 2017.

• Lopez, C., Bacarreza, O., Baldomir, A., Hernandez, S., H. Ferri Aliabadi, M. Reliability-based design optimization of composite stiffened panels in post-buckling regime.Research Journal on Structural and Multidisciplinary Optimization. Vol 55, issue 3, pp 1121-1141, 2017.

• Diaz, J., Cid Montoya, M., Hernandez, S. Efficient methodologies for reliability-based design optimization of composite aircraft panels.Advances in Engineering Software. Vol. 9, pp. 9-21, 2016.

• Lopez, C., Baldomir, A., Hernandez, S. Deterministic versus reliability-based topology optimization of aeronautical structures. Research Journal on Structural and Multidisciplinary Optimization. Vol. 53, Issue 4, pp. 907-921, April 2016,

• Hernandez, S. Design of long span bridges and high rise buildings in the twenty-first century. International Journal of Computational Methods and Experimental Measurements, Vol. 3, Number 3, pp. 205-229, 2015.

• Kusano, I., Baldomir, A., Jurado, J. A., Hernandez, S. Probabilistic optimization of the main cable and bridge of long span suspension bridges under flutter constraint. Journal of Wind Engineering and Industrial Aerodynamics, Vol. 146, pp. 59-70, 2015.

• Cid Montoya, M., Costa, M., Diaz, J., Romera, L.E., Hernandez, S. A multi-objective reliability-based optimization of the crashworthiness of a metallic-GFRP impact absorber using hybrid approximations. Research Journal on Structural and Multidisciplinary Optimization. Vol. 54, Issue 4, pp. 827-843, June 2015

• Nieto, F., Hargreaves, D.M., Owen, J.S., Hernandez, S. On the applicability of 2D URANS and SST k-w turbulence model to the fluid-structure interaction of rectangular cylinders. Engineering Applications of Computational Fluid Mechanics. Vol. 9, Issue 1, pp. 157-173, 2015.

• Nieto, F. Owen, J.S., Hargreaves, D.M., Hernandez, S. Bridge deck flutter derivatives: efficient numerical evaluation exploiting their interdependence. Journal of Wind Engineering and Industrial Aerodynamics, Vol. 136, pp. 138-150, 2015.

• Kusano, I., Baldomir, A., Jurado, J.A., Hernandez, S. Reliability based design optimization of long span bridges considering flutter. Journal of Wind Engineering and Industrial Aerodynamics, Vol. 135, pp. 149-162, 2014.

• Costas, M., Diaz, J., Romera, L., Hernandez, S. A multi-objective surrogate-based optimization of the crashworthiness of a hybrid car absorber. International Journal of Mechanical Sciences 88, pp. 46-54, 2014.

• Fontan, A.N., Hernandez, S., Baldomir, A. Simultaneous Cross Section and Launching Nose Optimization of Incrementally Launched bridges. Journal of Bridge Engineering. ASCE, pp. 04013002-1 a 04013002-10, March 2014, Vol. 19, number 3, 2014.

•Baldomir, A., Kusano, I., Hernandez, S., Jurado, J.A. A reliability study for the Messina Bridge with respect to flutter phenomena considering uncertainties in experimental and numerical data. Computer and Structures, Vol. 128, pp. 91-100, 2013

• Costas, M., Diaz, J., Romera, L.E., Hernandez, S., Tielas, A. Static and dynamic axial crushing analysis of car frontal impact hybrid absorbers. International Journal of Impact Engineering, Vol. 62, pp. 166-181, 2013

• Hernandez, S., Baldomir, A., Diaz, J., Pereira, F. An Enhanced Formulation of the Maximum Entropy Method for Structural Optimization. Computers, Materials and Continua, Vol. 32, No 3, pp. 219- 239, 2012.

• Diaz, J., Pereira, F., Romera, L., Hernandez, S. Probabilistic assessment of the structural failure of single lap bonded joints. International Journal of Adhesion and Adhesives, Vol. 37, pp. 70-78, 2012.

• Diaz, J., Fagiano, C., Abdalla, M.M., Gürdal, Z. Hernandez, S. A study of interlaminar stresses in variable stiffness plates. Composites Structures. Vol. 94, issue 3, pp. 1192-1199, 2012.

• Baldomir, A., Hernandez, S., Diaz, J., Fontan, A., Sensitivity analysis and optimum solutions by updating active constraints: application in aircraft structural design. Research Journal on Structural and Multidisciplinary Optimization. Vol. 40, pp. 797-814, 2011.

• Fontan, A. N., Diaz, J.M., Baldomir, A., Hernandez, S. Improved Optimization Formulations for Launching Nose of Incrementally Launched Prestressed Concrete Bridges. Journal of Bridge Engineering. ASCE, pp. 461-470, May/June 2011.

• Nieto, F., Hernandez, S., Jurado, J.A., Mosquera, A. Analytical approach to sensitivity analysis of flutter speed in bridges considering variable mass deck. Advances in Engineering Software, Vol. 42, number 4, pp. 117-129, 2011.

• Diaz, J., Hernandez, S. Uncertainty quantification and robust design of aircraft components under thermal loads. Aerospace Science and Technology, Vol.14, number 8, pp. 527-534, 2010.

• Nieto, F., Hernandez, S., Jurado, J.A., Baldomir, A. CFD practical application in conceptual design of a 425 m cable-stayed bridge. Wind and Structures, Vol. 13, number 4, pp. 309-326. 2010.

• Diaz, J., Hernandez, S., Fontan, A.N., Romera, L., A computer code for finite element analysis and design of post-tensioned voided slab bridge decks with orthotropic behaviour. Advances in Engineering Software, Vol. 41, number 7-8, pp. 987-999. 2010.

• Baldomir, A., Hernandez, S., Nieto, F., Jurado, J.A. Cable optimization of a long span cable stayed in La Coruña (Spain). Advances in Engineering Software, Vol. 41, number 7-8, pp. 931-938. 2010.

• Hernandez, S., Fontan, A.N., Diaz, J., Marcos, D. VTOP. An improved software for design optimization of prestressed concrete beams. Advances in Engineering Software, Vol. 41, Number 3, pp. 415-421, 2010.

• Diaz, J., Romera, L., Hernandez, S., Baldomir, A. Benchmarking of three-dimensional finite element models of CFRP single –lap bonded joints. International Journal of Adhesion and Adhesives, Vol. 30, number 3, pp. 178-189, 2010.

 Peer-reviewed Conferences

 • Menga, E., Lopez, C., Hernandez, S., Baldomir, A., Romero. I., Sanchez, M. J., Comparison of metamodeling techniques for uncertainty quantification and sensitivity analysis in assembled aircraft structures. AIAA Non Deterministic Approaches Conference, Kissimmee (USA), 8-12 January 2018.

• Hernandez, S., Naveira, P., Lopez, C., Baldomir, A., Cid C., Moledo, S., Freire, D. and Menga, E., Dynamic analysis of assembled aircraft structures with non-linear joints. 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Grapevine, Texas (USA), 9-13 January 2017.

• Kusano, I., Baldomir, A., Jurado J.A., Hernandez, S., Probabilistic optimization of a suspension bridge deck considering correlation among wind related variables. 7th European African Wind Engineering Conference, EACWE 2017, Liege (Belgium), 4-7 July 2017.

• Cid Montoya, M., Hernandez, S., Nieto, F., Optimum design of cable stayed bridges with single box deck considering aeroelastic and structural constraints. 7th European African Wind Engineering Conference, EACWE 2017, Liege (Belgium), 4-7 July 2017.

• Cid Montoya, M., Nieto, F., Kusano. I., Alvarez, A., Hernandez, S., Jurado, J. A., Application of surrogate models in the characterization of the aerodynamics response of streamlined bridge decks. 7th European African Wind Engineering Conference, EACWE 2017, Liege (Belgium), 4-7 July 2017.

• Lopez C., Baldomir A., Hernandez S., The relevance of reliability-based topology optimization in preliminary phases of aerospace structural design. 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Grapevine (USA), 9-13 January 2017.

• Lopez C., Baldomir A., Menga E., Hernandez S., Cid C., Freire D., A study of uncertainties in dynamic properties of assembled aircraft structures. International Conference on Noise and Vibration Engineering ISMA 2016, Leuven (Belgium), 19-21 September 2016.

• Cid, C., Baldomir, A., Hernandez, S., Romera, L.E. Reliability based design optimization of structures considering several incomplete configurations. 17th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, Washington D. C. (USA),   13-17 June 2016.

• Baldomir, A., Tembras, E., Hernández, S. Optimization of cable weight in multi span cable stayed bridges. Application to the Forth Replacement Crossing. Multi Span Large Bridges Conference, Porto (Portugal), 1-3 Julio, 2015.

• Menga, E., Hernandez, S., Moledo, S., Lopez, C. Nonlinear dynamic analysis of assembled aircraft structures with concentrated nonlinearities. IFASD 2015. International Forum on Aeroelasticity and Structural Dynamics. Saint Petersburg (Russia), 28 Junio-2 Julio, 2015.

• Computational modelling of elastomeric materials to fit experimental data. Computational Methods and Experimental Measurements XVII, G. M. Carlomagno, D. Poljak and C. A. Brebbia (eds.), pp. 269-278, WIT Press, 2015.

• Hernandez, S., Fontan, A., Diaz, J., Baldomir, A. Structural optimization in civil engineering classroom: A twenty year experience report. ASCE Structures Congress 2015, pp. 2613-2621, Portland, USA, 23-25 Abril, 2015

• Romera, L.E., Baldomir, A., Hernandez, S., Ouro, P., Costas, M. Assessment of Seismic Behaviour of Portal Bridges with Double Friction Pendulum Bearings. IABSE Symposium. Engineering for Progress, Nature and People, Madrid, 3-5 September 2014.

• Hernandez, S., Ouro, P., Romera, L.E. Optimization of PT in Cantilever Construction of Prestressed Concrete Bridges. IABSE Symposium. Engineering for Progress, Nature and People, Madrid, 3-5 September 2014.

• Nieto, F., Hernandez, S. Kusano, I., Jurado, J.A. Assessment of the aerodynamic response of bridge decks by means of 2D Reynolds Averaged Navier-Stokes simulations. Advances in Fluid Mechanics X. C. A. Brebbia, S. Hernandez, M. Rahman N. (eds.), pp. 407-418, WIT Press, 2014.

• Nieto, F., Hargreaves, D., Owen, J., Hernandez, S. Application of 2D URANS in fluid structure interaction problems of rectangular cylinders. Advances in Fluid Mechanics X, C. A. Brebbia, S. Hernandez y M. Rahman, (eds.), pp. 85-94, WIT Press, 2014.

• Hernandez, S., Fontan, A.N. Movable and launched bridges. Recent realizations and improved techniques. Movable and Rapid Assembled Structures, N. De Temmerman y C. A. Brebbia (eds.), pp. 245-255, WIT Press, 2014.

• Lopez, C., Baldomir, A., Hernandez, S. Some applications of reliability based design optimization in engineering structures. High Performance and Optimum Design of Structures and Materials, W. P De Vilde, S. Hernandez y C. A. Brebbia (eds.), pp. 393-404, WIT Press, 2014.

• Cid Montoya, M., Diaz, J., Hernandez, S. Performance of surrogate models in reliability based design optimization. High Performance and Optimum Design of Structures and Materials, W. P De Vilde, S. Hernandez y C. A. Brebbia (eds.), pp. 371-380, WIT Press, 2014.

• Romera, L., Paz, J., Costas, M., Diaz, J., Hernandez, S. Crashworthiness response of honeycomb metallic-GFRP energy absorption devices. High Performance and Optimum Design of Structures and Materials, W. P De Vilde, S. Hernandez y C. A. Brebbia (eds.), pp. 225-234, WIT Press, 2014.

• Jurado, J.A., Kusano, I., Hernandez, S., Nieto, F. Improvement of multimodal flutter analysis code, FLAS. EACWE6. The Sixth European & African Conference on Wind Engineering. Cambridge, July 7-11, 2013.

• Kusano, I., Baldomir, A., Jurado, J.A., Hernandez, S. Reliability Based Design Optimization of Long Span Bridges Considering Flutter. EACWE6. The Sixth European & African Conference on Wind Engineering. Cambridge, July 7-11, 2013.

• Hernandez, S., Romera, L.E., Pereira, F., Diaz, A. Seismic analysis of a cable stayed bridge in Talavera de la Reina (Spain). Earthquake Resistant Engineering Structures IX. C. A. Brebbia and S. Hernandez (eds.), pp. 383-392, WIT Press, 2013.

• Costas, M., Romera, L.E., Diaz, J., Hernandez, S., Tielas, A. Computational and experimental analysis of a hybrid car impact absorber. Computational Methods and Experimental Measurements XVI, G. M. Carlomagno, C. A. Brebbia and S. Hernandez (eds.), pp. 367-378, WIT Press, 2013.

• Hernandez, S., Menga, E., Baldomir, A., Lopez, C., Cid, M., Moledo, S. A methodology for identification of dynamic parameters in assembled aircraft structures. Computational Methods and Experimental Measurements XVI, G. M. Carlomagno, C. A. Brebbia and S. Hernandez (eds.), pp. 353-365, WIT Press, 2013.

• Hernandez, S., Diaz, J., Baldomir, A., Cid, M., Lopez, C. A comparison of reliability based structural optimization methodologies in the design of aircraft structures. ICOSSAR 2013, 11th International Conference on Structural Safety and Reliability, New York (USA), June 16-20, 2013.

• Costas, M., Diaz, J., Romera, L.E., Hernandez, S., Ledo, R. Influence of Welded Joints on the Crashworthiness Response of Hybrid Structural Elements. SAE International, 2013-01-0755, 2013.

• Jurado, J.A., Sanchez, R., Hernandez, S. Wind tunnel sectional tests for identification of flutter derivatives and vortex shedding in long span bridges. Fluid Structure Interaction VII, C.A. Brebbia y G.R.Rodríguez (eds.) pp. 51-60, WIT Press, 2013.

• Hernandez, S., Nieto, F., Jurado, J.A. Aeroelastic studies of a cable stayed bridge in Talavera de la Reina, Spain. Fluid Structure Interaction VII, C.A. Brebbia y G.R. Rodríguez (eds.) pp. 39-50, WIT Press, 2013.

• Hernandez, S., Diaz, J., Cid, M., Baldomir, A., Romera, L. Uncertainty and reliability in aircraft design and optimization. Computer Aided Optimum Design in Engineering XII, S. Hernández, C. A. Brebbia & W.P. de Wilde (eds.), pp. 219-230, WIT Press, 2012.

• Fontan, A.N., Hernandez, S., Tsao, F.J. A software with graphical interface for design optimization of prestressed concrete launched bridges. Computer Aided Optimum Design in Engineering XII, S. Hernandez, C. A. Brebbia & W.P. de Wilde (eds.), pp. 177-188, WIT Press, 2012.

• Hernandez, S., Diaz, J. An application of Taguchi methods to robust design of aircraft structures. High Performance Structures and Materials VI, W.P. de Wilde, C. A. Brebbia & S. Hernández (eds.), pp. 3-12, WIT Press, 2012.

• Baldomir, A., Hernandez, S., Romera, L., Diaz, J. Size optimization of shell structures considering several incomplete configurations. 53nd AIAA/ASME/ASCE/ASC Structures, Structural Dynamics and Materials Conference, Honolulu (USA), April, 2012.

• Hernandez, S., Baldomir, A., Diaz, J., Pereira, F. A unified approach of optimality criteria and mathematical programming via the maximum entropy method. 53nd AIAA/ASME/ASCE/ASC Structures, Structural Dynamics and Materials Conference, Honolulu (USA), April, 2012.

• Diaz, J., Hernandez, S., Romera, L., Baldomir, A. Survey of reliability analysis methods for design and optimization of aircraft structures. 53nd AIAA/ASME/ASCE/ASC Structures, Structural Dynamics and Materials Conference, Honolulu (USA), April, 2012.

• Hernandez, S., Baldomir, A., Perez, I. Optimization of cable cross sectional area in long span cable stayed bridges. ASCE 2012 Structures Congress.Chicago, USA, March 29-31, 2012.

• Diaz, J., Hernandez, S., Romera, L., Baldomir, A. Reliability analysis of flutter speed in long span bridges using FORM technique. 13th International Conference on Wind Engineering. Amsterdam (Netherlands), 10-15 Julio 2011.

• Hernandez, S., Nieto, F., Baldomir, A., Jurado, J.A. Some challenges on the aeroelastic analysis and design of long span bridges. Fuid Structure Interaction VI, A. J. Kassab, C.A. Brebbia, E. A. Divo y S. Hernández. (eds.) pp. 207-219, WIT Press, 2011.

• Jurado, J.A., Hernandez, S., Nieto, F., Baldomir, A. Three examples of flutter analysis of cable stayed bridges. Fuid Structure Interaction VI, A. J. Kassab, C.A. Brebbia, E. A. Divo y S. Hernández. (eds.) pp. 65-76, WIT Press, 2011.

• Nieto, F., Hernandez, S., Jurado, J.A., Pereira, F., Diaz, A. Wind engineering studies for a cable stayed bridge in Talavera de la Reina, Spain. ASCE 2011 Structures Congress, pp 113-122. Las Vegas, USA, April 14-16, 2011.

• Baldomir, A., Hernandez, S., Nieto, F., Diaz, J. An efficient approach to structural optimization of aircraft structures considering parameter variation. 52nd AIAA/ASME/ASCE/ASC Structures, Structural Dynamics and Materials Conference, Denver (USA), April, 2011.

• Diaz, J., Hernandez, S., Romera, L.E., Baldomir, A. Uncertainty quantification and reliability analysis methods applied to aircraft structures. ICAS 2010, 27th International Congress of the Aeronautical Sciences.Anchorage, Nice (France), 19-24, September 2010.

• Hernandez, S., Baldomir, A., Diaz, J, Romera, L.E. Design optimization of structures considering multiple ultimate limit state. 13th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, Fort Worth (USA), September 2010.

• Hernandez, S., Baldomir, A., Nieto, F., Jurado, J.A. Conceptual design of the cable stayed Miradoiros Bridge in La Coruna, Spain ASCE 2010 Structures Congress, pp 2164-2175. Orlando, USA, Mayo 12-15, 2010.

• Nieto, F., Hernandez, S., Jurado, J.A., Romera, L.E. Code provisions for wind loads on short span road bridges. Spanish IAP code, UNE-EN 1991-1-4 & AASHTO LRFD Bridge Design Specifications. ASCE 2010 Structures Congress, pp. 2122-2133. Orlando, USA, May 12-15, 2010