Intra-ply shear locking


Thije, R.H.W. ten and Akkerman, R. (2007) Intra-ply shear locking. In: 10th ESAFORM Conference on Material Forming 2007, 18-20 April 2007, Zaragoza, Spain (pp. pp. 1017-1022).

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Abstract:Intra-ply shear locking results in unrealistic fibre stresses and spurious wrinkling in composite forming simulations. Three remedies are investigated: aligning the mesh, applying reduced integration and using multi-field elements. The bias extension simulation is used to test several triangular and quadrilateral elements on their capability to avoid locking. Their performance under large deformations is tested as well. The new multi-field element seems to be the best locking free element in random meshes.
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Engineering Technology (CTW)
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