Simple Tests as Critical Indicator of Intra-Ply Shear Locking

Abstract:

Standard finite elements can exhibit the numerical artifact of intra-plyshear locking during forming simulations. The displacement fields of elementsare piecewise continuous and cannot correctly capturediscontinuities in the shear field. This shear locking is illustrated insimulations of bias-extension experiments with an unaligned mesh. Two simpletests were developed as a critical indicator of intra-ply shear locking intriangular elements. A single-element-test shows the origin of the locking anda pull-out test indicates locking caused by small misalignments of theelements.

• Periodical: Key Engineering Materials (Volumes 554-557)
• Pages: 512-520
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.554-557.512
• Online since: June 2013
• Authors: D.J. Wolthuizen, R.H.W. Ten Thije, R. Akkerman
• Keywords: Bias Extension Test, Finite Element Analysis (FEA), Forming, Intra-Ply Shear Locking

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