期刊
INTERNATIONAL JOURNAL OF FRACTURE
卷 139, 期 2, 页码 267-293出版社
SPRINGER
DOI: 10.1007/s10704-006-0044-0
关键词
residual stresses; fracture; laminates; adhesives; friction; interfaces
Prior methods for calculating energy release rate in cracked laminates were extended to account for heterogeneous laminates and residual stresses. The method is to partition the crack tip stresses into local bending moments and normal forces. A general equation is then given for the total energy release rate in terms of the crack-tip moments and forces and the temperature difference experienced by the laminate. The analysis method is illustrated by several example test geometries. The examples were verified by comparison to numerical calculations. The residual stress term in the total energy release rate equation was found to be essentially exact in all example calculations.
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