Analytical-experimental correlation of polyaxial states of stress in Thornel-epoxy laminates |
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Authors: | Robert E Rowlands |
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Institution: | 1. Department of Engineering Mechanics, University of Wisconsin-Madison, 53706, Madison, WI
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Abstract: | The observed strength and stress-strain response of O2/±45] s Thornel-epoxy laminates under varying biaxial-stress ratios are compared with those predicted numerically. Both flat and ring-type off-axis composite specimens are employed by which to generate experimentally the biaxial data. While the numerical predictions tend to overestimate the observed laminate strengths, the several predicted stress-strain curves agree well with each other and with experiment. The off-axis ring specimens produced significantly higher strengths than did the corresponding flat specimens. |
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