Abstract
High-performance multifunctional materials and structures have attracted particular attention in recent years owing to the increasingly higher requirements on material and structures in engineering applications. From the view point of mechanics, such materials and structures should possess adequate load-carrying capacity (including impact, explosion, etc.), serviceability, robustness and durability. From the view point of physics, they should exhibit excellent thermal insulation, noise protection, wear resistance and other beneficial properties to sustain different loading conditions as shown in Figure 1. Since single-phase materials cannot satisfy several requirements simultaneously, the concept of composite materials becomes increasingly popular in recent years to utilize the individual advantages of the materials constituents. Multi-field coupled materials represent another class of multifunctional materials, in which several physical fields (mechanical, thermal, electrical, magnetic, etc.) are coupled with each other. Such multifunctional materials are often referred to as smart or intelligent materials and they have wide-range applications in novel smart devices and intelligent structures (sensors, actuators, transducers, energy harvesters, etc.).
![image.png]( "image.png")
Figure 1: Increasingly higher requirements on materials and structures due to different loading conditions.
Modelling and simulation of multifunctional materials and structures are highly demanding because of the inherent problem complexities such as the inhomogeneity, nonlinearity and multi-field coupling in such materials and structures, but they become increasingly popular and important. Through the so-called “Virtual Laboratory” and “Virtual Testing”, many complex and expensive experiments could be reduced or even avoided. For this purpose, appropriate theoretical models as well as highly efficient and accurate computational methods are required.
In this presentation, some recent research activities performed and results obtained at the Chair of Structural Mechanics, Department of Civil Engineering, School of Science and Technology, University of Siegen, Germany, will be reported and highlighted. In particular, some novel aspects related to the theoretical modelling, numerical simulation and innovative applications of functionally graded materials (FGMs) and structures, phononic crystals (PCs) and structures, metamaterials, and smart (piezoelectric/piezomagnetic and magneto-electro-elastic) materials and structures will be presented and discussed.
Key words: Multifunctional materials and structures, Theoretical modelling, Numerical simulation, Computational methods.
Biography
Education and professional experiences:
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09.2015-07.2017:
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Department Head, Department of Civil Engineering, School of Science and Technology, University of Siegen, Germany
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01.2014-08.2015:
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Deputy Department Head, Department of Civil Engineering, School of Science and Technology, University of Siegen, Germany
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12.2007-01.2010:
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Director, Institute of Structural Engineering, Department of Civil Engineering, University of Siegen, Germany
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07.2007-10.2016:
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Vice-President of the “International Chinese Association for Computational Mechanics”
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Since 10.2004:
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Professor (C4) and Chair of Structural Mechanics, Department of Civil Engineering, University of Siegen, Germany
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11.1995-10.2004:
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Professor, Department of Civil Engineering, University of Applied Sciences Zittau/Görlitz, Germany
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15.12.1993:
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Habilitation at the TU Darmstadt, Germany
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09.1990-01.1993:
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Visiting Scholar at the Institute of Mechanics, TU Darmstadt, Germany
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Since 01.1990:
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Professor, Department of Engineering Mechanics, Tongji University, China
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04.1989-10.1989:
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Visiting Scholar working with Professor J. D. Achenbach, Center for Quality Engineering and Failure Prevention, Northwestern University, USA
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04.1988-04.1989:
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Associate Professor, Department of Engineering Mechanics, Tongji University, Shanghai, China
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10.1986-04.1988:
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Postdoc with Professor Jan D. Achenbach, Department of Civil Engineering, Northwestern University, USA
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30.04.1986:
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PhD (Dr.-Ing.) defense. Grade: Excellent
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10.1983-10.1986:
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Research Assistant and PhD Candidate of Prof. Dr.-Ing. Dietmar Gross, Institute of Mechanics, Technical University of Darmstadt, Germany
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09.1983:
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Diploma (Dipl.-Ing.) defense. Grade: Excellent
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10.1980-09.1983:
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Study at the Technical University Darmstadt, Germany
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03.1977-06.1980:
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Study of Building Materials, Tongji University, Shanghai, China
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Major research fields:
Acoustic and elastic wave propagation phenomena
Elastodynamics and structural dynamics
Computational mechanics (Boundary element method (BEM), Smoothed finite element method (SFEM), Extended finite element method (XFEM), Meshfree or meshless methods, Spectral methods, etc.)
Dynamic analysis of anisotropic materials with cracks and defects
Mechanics of smart (piezoelectric, magnetoelectroelastic, shape-memory) materials and structures
Static and dynamic analysis of functionally graded materials (FGMs) and structures without/with cracks
Micromechanics of concrete materials and structures
Mechanics of multifunctional (noise-absorbing, vibration-damping, heat-isolating and energy-saving) materials and structures
Engineering fracture and damage mechanics
Fatigue analysis of engineering materials and structures
Band structures (pass-bands and band-gaps) and wave tuning in phononic crystals
Surface and interface effects in nano-materials and nano-structures (nano-ribbons, nano-tubes, nano-plates and nano-shells)
Refereeing activities:
Reviewer for over 70 journals in the areas of solid mechanics and computational mechanics; German Research Foundation (DFG); German Academic Exchange Services (DAAD); Engineering and Physical Sciences Research Council (EPSRC) UK; Austrian Science Fund (FWF); Science and Engineering Research Council Singapore; Agency for Science, Technology and Research (Singapore), etc.
Honors and awards (selected):
09.2017: Doctor honoris causa (Dr. h.c.), Aristotle University of Thessaloniki
05.2017: Honorary Professor of the Beijing Jiaotong University, Beijing, China
05.2017: Consulting Professor of the Northwestern Polytechnical University, Xi’an, China
10.2016: Honorary Fellow of the “International Chinese Association for Computational Mechanics”
06.2016: Member of Academia Europaea
10.2015: Du Qinghua Medal & Awards of Computational Methods in Engineering
09.2015: Member of the European Academy of Sciences and Arts
01.2015: Doctor honoris causa (Dr. h.c.), Slovak University of Technology in Bratislava
10.2014: Member of the European Academy of Sciences
Editorial boards:
International Journal of Computational Methods (IJCM)
Structural Durability & Health Monitoring (SDHM)
Computer Modeling in Engineering & Sciences (2003-2007)
Electronic Journal for Boundary Elements
Mathematical Methods and Physicomechanical Fields
Computational and Experimental Methods in Structures, Book Series, Word Scientific & Imperial College Press
Engineering Fracture Mechanics (Managing Guest Editor, 2009-2010)
Advances in Materials and Mechanics (AMM), Co-Chief Editor, Book Series, HEP-Springer
Engineering Analysis with Boundary Elements
Advances in Mechanical Engineering (Guest Editor, 2013-)
Chinese Quarterly of Mechanics (Guest Editor, 2014-)
Acta Mechanica Solida Sinica (Elsevier, 2015-)
Theoretical and Applied Mechanics Letters (Elsevier, 2015-)
Publications:
2 monographs, over 750 technical publications in journals and conference proceedings, about 50 research reports, about 60 invited lectures
