Journal
JOURNAL OF COMPOSITE MATERIALS
Volume 47, Issue 6-7, Pages 893-924Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998312456409
Keywords
UD-lamina failure conditions; tri-axial stressing; hydrostatic compression; multi-directional laminates; non-linear behaviour
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This paper represents a comparison between the predictions of Cuntze's Failure Theory, referred to as 'failure mode concept model, and experimental results provided in Part B of the second World-Wide Failure Exercise. The results covered 12 test cases, involving an isotropic matrix material, 7 UD laminas and 4 multi-directional laminates subjected to 3D states of stress. The UD lamina data, needed for the validation of the failure mode concept-based UD strength conditions, were broadly applicable, whereas the laminate data could only partly serve for model verification because some test cases show some discrepancies. Also, there was a lack of test data in some of the test cases and it is concluded that there is a need to obtain more representative test data. Nevertheless, a good mapping could be achieved by the applied strength conditions dedicated to the specific test case.
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