题目：混凝土在复杂受压应力条件下的塑形本构模型

A plasticity constitutive model for concrete under multiaxial compression

时间：2022年4月1日9:00~11:00 AM

地点：腾讯会议875-355-309 (会议号）

报告人：郑博通助理教授（香港理工大学）

欢迎广大师生参加!

土木与交通学院

2022年3月23日

报告人简介：

郑博通博士于同济大学获得学士、硕士学位，于美国休斯敦大学获得博士学位，目前任职香港理工大学，担任助理教授（研究类）。郑博士的研究方向主要包括：钢结构的疲劳加、形状记忆合金、纤维增强复合材料及混凝土的本构模拟。他目前的主要研究领域是工程建设数字化模拟。

 Dr. Bo-Tong Zheng received his B.E. and M.E. from Tongji University and Ph.D. from the University of Houston. He is currently working as a Research Assistant Professor at The Hong Kong Polytechnic University. His research has involved fatigue-strengthening of steel, shape memory alloys and fiber-reinforced polymers, and constitutive modeling of concrete. His current research is focused on digital construction technologies.

报告摘要：

Conventional plasticity models for concrete have been developed to reflect the experimental behavior under active stresses, and an improvement to such models is to embed an accurate 2D analytical model for passively-confined concrete into a 3D plasticity model. However, such an improved model is still inaccurate for concrete under substantially non-uniform passive confinement. The speaker and his coworker have developed a new plasticity constitutive model for concrete, which is expected to be able to accurately predict the 3D stress-strain behavior of concrete under non-uniform passive confinement, as well as uniform-passive and -active confinement. The details of the model and some of its applications will be introduced in this talk.