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    海外学者云课堂:On the First- and Third-Order Shear Deformation Theories of Composite and Functionally Graded Beams and Plates
    点击量: 录入时间:2021-04-08

    应亚搏网页登陆国际应用力学中心刘子顺教授邀请,德克萨斯A&M大学的J. N. Reddy院士举办线上讲座。

     

     

    报告人:J. N. Reddy 院士(德克萨斯A&M大学)

    讲座时间:2021年4月19日21:00

    讲座方式:腾讯会议 382 225 420

    讲座题目:Academic Paper Writing: A Learning Experience

     

    讲座摘要:

    Analysis of fiber-reinforced, laminated composite structures presents the analyst with many challenges.  For example, the global deformation of laminated composite structures is often characterized by complex coupling between the extension, bending, and shearing modes. Further, due to their characteristically low transverse shear stiffness, composite laminates often exhibit significant transverse shear deformation at lower thickness-to-span ratios than do similar homogeneous isotropic plates.  Therefore, an accurate determination of interlaminar stresses (i.e., stresses between layers) is of paramount importance. In this lecture, the first-order and third-order shear deformation theories are presented in some detail for the audience to see how the higher-order theories are derived. In addition, a two-constituent material variation through the beam height or plate thickness is considered in the derivation of the equations of beams and plates. Some numerical examples are presented to show how the shear deformation theories predict interlaminar stresses accurately.  

     

     

    报告人简介:

    Dr. Reddy, the O’Donnell Foundation Chair IV Professor in J. Mike Walker ’66 Department of Mechanical Engineering at Texas A&M University, is a highly-cited researcher, author of a large number of journal papers and 21 books (several with second, third, and fourth editions) on energy principles, variational methods, plates and shells, composite materials, mechanics of solids, and the finite element method (linear and nonlinear) and its applications.  Dr. Reddy has delivered over 180 plenary, keynote, and invited lectures at international conferences; and taught 116 short courses; he advised 50 postdoctoral fellows and research visitors, and guided and co-guided 118 graduate students (72 Ph.D. and 46 M.S. students).

     

    Dr. Reddy is known worldwide for his significant contributions to the field of applied mechanics through the authorship of widely used textbooks on the linear and nonlinear finite element analysis, variational methods, and composite materials and structures. His pioneering works on the development of shear deformation theories (that bear his name in the literature as the Reddy third-order plate theory and the Reddy layerwise theory) have had a major impact and have led to new research developments and applications. Some of the ideas on shear deformation theories and penalty finite element models of fluid flows have been implemented into commercial finite element computer programs like ABAQUS, NISA, and HyperXtrude. In recent years, Reddy's research deals with 7-, 8-, and 12-parameter shell theories, nonlocal and non-classical continuum mechanics problems, and problems involving couple stresses, surface stress effects, and discrete fracture and flow.

     

    Dr. Reddy is the recipient of numerous professional awards from various professional organizations and societies. Recent significant national and international awards include: member of the US National Academy of Engineering, and foreign member of the Indian National Academy of Engineering, Canadian Academy of Engineering, Brazilian National Academy of Engineering, the Royal Academy of Engineering of Spain, the Chinese Academy of Engineering, and the European Academy of Sciences. He also received the John von Neumann Medal from the US Association of Computational Mechanics, the Theodore von Karman Medal from the American Society of Civil Engineers, and the Stephan P. Timoshenko Medal from American Society of Mechanical Engineers.

     

     

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