Reddy走进南科大讲堂带来精彩讲座,关于举办美国德州农工大学J

讲座最后,J.N.
Reddy院士耐心解答了我校师生的问题,并和大家展开热烈的讨论。

  1. Mindlin, R.D., Influence of couple-stresses on stress concentrations,
    Exper Mech. 3(1), 1-7, 1963.

  2. Srinivasa, A.R. and Reddy, J.N., A model for a constrained, finitely
    deforming, elastic solid with rotation gradient dependent strain energy,
    and its specialization to von Karman plates and beams, J. Mech Phys
    Solids, 61(3), 873-885, 2013.

  3. Arbind, A., Reddy, J.N., and Srinivasa, A.R., Nonlinear analysis of
    beams with rotation gradient dependent potential energy for constrained
    micro-rotation, Eur J Mech, A/Solids, 65, 178-194, 2017.

  4. Arbind, A., Reddy, J.N., and Srinivasa, A.R., Nonlinear analysis of
    plates with rotation gradient dependent potential energy for constrained
    micro-rotation, J Engng Mech, 144(2), 2018.

图片 1提问环节

Professor 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, composite materials and structures, and continuum
mechanics. 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.

图片 2报告会现场

Khodabakhshi, P., Reddy, J.N., and Srinivasa, A.R., GraFEA: A graph
based finite element approach for study of damage and fracture in
brittle materials, Meccanica, 51(12), 3129-3147, 2016.

2018年3月9日,美国德州农工大学卡城分校教授 J.N.
Reddy做客第148期南科大讲堂,为我校师生带来一场精彩讲座。

Structural continuum theories require a proper treatment of the
kinematic, kinetic, and constitutive issues accounting for possible
sources of non-local and non-classical continuum mechanics concepts and
solving associated boundary value problems. There is a wide range of
theories, from higher gradient to truly nonlocal (e.g., strain gradient
theories, couple stress theories, Eringens stress gradient theories). In
this lecture, an overview of the authors recent research on nonlocal
elasticity and couple stress theories in developing the governing
equations of beams and plates will be presented. Two different nonlinear
gradient elasticity theories that account for geometric nonlinearity and
microstructure-dependent size effects are discussed. The first theory is
based on modified couple stress theory of Mindlin [1] and the second
one is based on Srinivasa and Reddy gradient elasticity theory [2].
These two theories are used to derive the governing equations of beams
and plates [3, 4]. In addition, a graph-based finite element framework
(GraFEA) suitable for the study of damage in brittle materials will be
discussed [5].

图片:张晓燕

Dr. Reddy, the Oscar S Wyatt Endowed Chair Professor, Distinguished
Professor, and Regents Professor of Mechanical Engineering at Texas A&M
University, is a highly-cited researcher, author of 21 textbooks and
over 600 journal papers, and a leader in the applied mechanics field for
more than 40 years. Dr. Reddy has been a member of Texas A&M faculty
since 1992.

文字: 学生新闻社 马哲

题 目:Non-local and Non-classical Continuum Models

J.N. Reddy讲座的主题为A Spectral/hp 7- and 12-Parameter Shell Elements
for Large Deformation Analysis of Composite
Structures,主要介绍具有各向同性的层压复合材料和弹性壳结构的形变分析的数值模拟,以及在合适的正交点上采用高阶高斯-拉盖尔求积公式进行系数矩阵和力的数值计算情况。J.N.
Reddy首先演示了经过修正的七个参数扩展下的位移场函数方程,接着延展到十二个参数扩展下位移场函数方程。他在分析计算时都考虑了拉伸对厚度的影响,并且利用三维建构模型来分析。另外,他还展示了多个形变模型及其在七个和十二个参数下的演示和图像分析,通过该模型准确预测出位移和压力场。

附件:无

J.N.
Reddy是德州农工大学机械工程系教授,是美国国家工程院院士,印度国家工程院院士,加拿大工程院院士和巴西国家工程院院士。同时,他还是21本教科书和600多篇期刊论文的作者,其论文被高频引用。

报告人简介:

图片 3J.N.
Reddy作报告

地 点:交通大楼604会议室

2018年3月1日

Recent Honors include: 2016 Prager Medal, Society of Engineering
Science, 2016 Thomson Reuters IP and Sciences Web of Science Highly
Cited Researchers – Most Influential Minds, and the 2016 ASME Medal from
the American Society of Mechanical Engineers, the 2017 John von Neumann
Medal from the US Association of Computational Mechanics. He is a member
US National Academy of Engineering and foreign fellow of Indian National
Academy of Engineering, the Canadian Academy of Engineering, and the
Brazilian National Academy of Engineering. A more complete resume with
links to journal papers can be found at

时 间:2018年3月5日10:00-12:00

土木与交通学院

欢迎广大师生参加

报告摘要:

References of additional information

报告人:J.N. Reddy(美国德州农工大学,教授,美国工程院院士)

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