学术报告通知
报告题目:Elastic waves in soft matter.
报告人:Prof.Michel Destrade(National University Of Galway)
报告时间:2018年12月3日（星期一）下午16:00
报告地点:明故宫校区18号楼526报告厅
主办单位:国际合作处、机械结构力学及控制国家重点实验室、航空宇航学院
报告人简介：Professor Michel Destrade is Chair of Applied Mathematics at NUI Galway; Adjunct Professor at Zhejiang University and at University College Dublin; Directeur de Recherche at the French National Centre for Scientific Research (on leave) and a member of the International Brain Mechanics and Trauma Lab at Oxford University. He is Associate Editor of many prestigious international journals, Reviews Editor for Proceedings of the Royal Society A and Contributing Editor for International Journal of Non-Linear Mechanics.
He is acknowledged internationally for his active participation in collective articles, graduate courses, special issues, editorial boards and international bodies. In Galway he is involved in a structured effort to make progress in the fields of nonlinear electro-elasticity, acousto-elasticity theory, nonlinear wave theory and their applications to soft tissues and soft dielectrics, with competitive funding (European Commission; Royal Society; British Council; Science Foundation Ireland; Irish Research Council, etc.), an output of 6-10 articles/year, numerous talks, strong press coverage (The Irish Times, New Scientist, Science, Wired, La Recherche, etc.), a large network of highly influential collaborators. He has coordinated several advanced courses, workshops and conferences locally and abroad. His expertise is regularly called upon to evaluate articles, grant proposals, promotion bids, MSc and PhD theses, etc.
He has authored 3 book chapters and 120+ publications in high-impact international journals with 60+ international collaborators. His h-index is 32 and his citation count 3,200+ (Google Scholar).
报告简介：
Biological soft tissues and soft gels are difficult to study and model mathematically. Bioengineers often see tissues as engineering materials and try to evaluate their mechanical properties by relying on standard testing protocols, such as tensile testing, simple shear, torsion, etc. These processes are destructive and change the mechanical properties of living tissues considerably.
To test tissues non-destructively and non-invasively, we can rely on the propagation of elastic waves. Just like a piano tuner can infer some information simply by tapping a cord while changing its state of stress, we can study the influence of pre-stress on the speed of elastic waves traveling in a soft solid. This idea forms the basis of the theory of acousto-elasticity, which has been used successfully in the past for "hard" elastic solids such as rocks and metals.
With this talk, we explore its extension to "soft" elastic solids, which can be subjected to large deformations in service. We look at theoretical, numerical, and experimental results, generated in particular on gels, human skin, and porcine brain matter.
