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力学与实践 ›› 2004, Vol. 26 ›› Issue (5): 0-0.doi: 10.6052/1000-0992-2003-447

• 应用研究 •    

二维微裂纹体有效性质之间的关联研究

赵海峰 胡更开   

  1. 北京理工大学力学系 北京理工大学应用力学系 胡 100081
  • 收稿日期:2003-11-06 修回日期:1900-01-01 出版日期:2004-10-10 发布日期:2004-10-10

CORRELATION OF EFFECTIVE PROPERTIES FOR PLANAR MATERIALS WITH

  • Received:2003-11-06 Revised:1900-01-01 Online:2004-10-10 Published:2004-10-10

摘要: 通过解析和数值的方法研究了二维微裂纹体有效模量和有效导电系数之间的关联. 针对 二维含有任意取向和平行的微裂纹介质,通过基于象素的有限元方法分别计算了它们的有效 杨氏模量和有效导电系数,并建立了两种不同物理量之间的关联. 研究结果表明利用简单的 解析Mori-Tanaka方法也可以建立上述关联,并且与数值结果吻合很好.

关键词: 微裂纹体,有效性质关联,, Mori-Tanaka法,数值方法

Abstract: The correlation between of the effective modulus and the effective electrical conductivity for planar materials with microcracks are investigated by numerical and Mori-Tanaka's theoretical methods. The relations derived from analytical Mori-Tanaka's method for both randomly oriented and parallel microcracks are found to be in excellent agreement with the numerical results.

Key words: microcracks , cross link property, mori-tanaka