Tensile fracture behaviour of notched boron/aluminum composite laminates

被引：0

作者：

Govindan Potti P.K. ^{[1
]}

Nageswara Rao B. ^{[1
]}

Srivastava V.K. ^{[2
]}

机构：

[1] Structural Engineering Group, Vikram Sarabhai Space Centre

[2] Department of Mechanical Engineering, Institute of Technology, Banaras Hindu University

来源：

Forschung im Ingenieurwesen | 2000年 / 66卷 / 1期

关键词：

Stress Criterion; Simple Relation; Composite Laminate; Circular Hole; Tensile Fracture;

D O I：

10.1007/s100100000032

中图分类号：

学科分类号：

摘要：

This paper presents modifications in the stress fracture criteria (known as the point stress criterion and the average stress criterion), developed by Whitney and Nuismer to predict the tensile strength of composite laminates containing holes and cracks. A simple relation is used for the characteristic lengths to take care of the notch size dependence, which can improve the accuracy while evaluating the notched strength of composite laminates. The applicability of the simple relation is examined by considering a good amount of fracture data on boron/ aluminium laminates. The present procedure correlates well with the test data on circular hole specimens as well as various cracked configurations and confirms that the approach can be applied for tensile strength estimations of notched composite laminates.

引用

页码：24 / 30

页数：6

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