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Analysis of stiffness reduction of cracked cross-ply laminates

โœ Scribed by Z Hashin

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
482 KB
Volume
25
Category
Article
ISSN
0013-7944

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โœฆ Synopsis

Stiffness reduction of cracked [O~/!X$], laminates is analyzed by variational methods on the basis of the principle of minimum complementary energy. For this purpose admissible stress systems are constructed which satisfy equilibrium and all boundary and interface conditions. The optimal stress field is then determined by minimization ofcomplementary energy. The analysis allows for crack interaction and random crack distribution. Results are given for Young's modulus, shear modulus and Poisson's ratio. Young's modulus results are in excellent agreement with experimental data for [O"/W$ glass/epoxy laminate.

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