力学与实践 ›› 2013, Vol. 35 ›› Issue (5): 9-16.DOI: 10.6052/1000-0879-12-414

• 专题综述 • 上一篇    下一篇

由组份材料性能计算复合材料强度的理论与实践

黄争鸣   

  1. 同济大学航空航天与力学学院, 上海200092
  • 收稿日期:2012-11-14 修回日期:2012-12-21 出版日期:2013-10-08 发布日期:2013-10-22
  • 通讯作者: 黄争鸣,E-mail:huangzm@mail.tongji.edu.cn
  • 作者简介:黄争鸣,曾任教育部"长江学者",现同济大学航空航天与力学学院教授.
  • 基金资助:

    国家自然科学基金(11272238);教育部博士点基金(20120072110036)和中央高校基础研究经费(1330-219-104)资助项目.

THEORY AND PRACTICE OF CALCULATION OF A COMPOSITE STRENGTH FROM CONSTITUENT PROPERTIES

HUANG Zhengming   

  1. School of Aerospace Engineering & Applied Mechanics, Tongji University, Shanghai 200092, China
  • Received:2012-11-14 Revised:2012-12-21 Online:2013-10-08 Published:2013-10-22

摘要:

强度是结构材料最重要的一项性能指标,但如何预报纤维增强复合材料的极限承载能力却依然还是一个世界性难题. 经作者及其团队多年来的不懈努力,使得实现由原始组份性能计算复合材料强度的目标不再遥不可及. 本文围绕如何达到这一目标进行简要介绍. 也许不久之后,一旦纤维和基体材料的性能数据库建立起来,任何一个复合材料结构的设计与开发将不再依赖于甚至无需任何实验. 这不仅能节省大笔实验费用,而且能大幅缩短复合材料新产品的问世周期,促进复合材料更加广泛和更为有效地应用.

关键词:

复合材料|强度预报|桥联理论|热残余应力|塑性|应力集中系数

Abstract:

The strength is among the most important characteristics of a structural material. How to reasonably estimate the ultimate load carrying capacity of a fiber reinforced composite still remains a world-wide great challenge. Through years of studies by this author and his collaborators, the prediction of the ultimate strength of a laminated composite subjected to an arbitrary load based only on its constituent properties measured independently is no longer an unachievable goal. How to approach to this goal is briefly described in this paper. It is highly possible in a near future that, when a material database for all necessary properties of the candidate constituent fiber and matrix materials is established, the design and the development of any composite structure will not solely depend on experiments or can even be accomplished without any experiment on the composite itself. This will not only save a great amount of money for experiments, but also significantly shorten the development period of a new composite product, and promote more effective and wide usage of composite structures.

Key words:

composites|strength prediction|bridging model|thermal residual stresses|plasticity|stress concentration factor

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