Whole-field assessment of the effects of boundary conditions on the strain field in off-axis tensile testing of unidirectional composites

@inproceedings{Pierron1998WholefieldAO,
  title={Whole-field assessment of the effects of boundary conditions on the strain field in off-axis tensile testing of unidirectional composites},
  author={Fabrice Pierron and Ez{\'e}chiel Idelphonse Alloba and Yves Surrel and Alain Vautrin},
  year={1998}
}
The objective of this paper is to present an experimental assessment of the effects of boundary conditions on the strain field in 10° off-axis tensile tests on unidirectional carbon/epoxy composites. It is shown experimentally by using a whole-field phase stepped grid technique that oblique tabbing of off-axis coupons results in a homogeneous strain field over the whole specimen, thus preventing premature failure near the tabs. A numerical sensitivity study reveals that the oblique angle is not… CONTINUE READING

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