Effects of surface geometry of composites on thermal stress distribution: a numerical study

被引：17

作者：

Abedian, A ^{[1
]}

Szyszkowski, W ^{[1
]}

Yannacopoulos, S ^{[1
]}

机构：

[1] Univ Saskatchewan, Dept Engn Mech, Saskatoon, SK S7N 5A9, Canada

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 1999年 / 59卷 / 01期

关键词：

thermal stress; composite material; micro-mechanics; finite-element method (FEM); cracking;

D O I：

10.1016/S0266-3538(98)00041-4

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The fiber/matrix interaction is analyzed from the viewpoint of micro-mechanics by using the finite-element method. The effects of various parameters characterizing the free surface of the composite on the thermal stress distribution are examined. The paper aims at obtaining a better understand of the nature of stress concentrations and how these stresses contribute to the cracking which is often observed on the free surface of a fiber-reinforced composite if the temperature changes. The results indicate that it is possible to minimize the stress concentration occurring at the end of the fiber, thereby reducing the tendency of the composite to crack. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：41 / 54

页数：14

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