Isogeometric cohesive zone model for thin shell delamination analysis based on Kirchhoff-Love shell model
Tran Quoc THAI , Timon RABCZUK , Xiaoying ZHUANG
Front. Struct. Civ. Eng. ›› 2020, Vol. 14 ›› Issue (2) : 267 -279.
Isogeometric cohesive zone model for thin shell delamination analysis based on Kirchhoff-Love shell model
We present a cohesive zone model for delamination in thin shells and composite structures. The isogeometric (IGA) thin shell model is based on Kirchhoff-Love theory. Non-Uniform Rational B-Splines (NURBS) are used to discretize the exact mid-surface of the shell geometry exploiting their C1-continuity property which avoids rotational degrees of freedom. The fracture process zone is modeled by interface elements with a cohesive law. Two numerical examples are presented to test and validate the proposed formulation in predicting the delamination behavior of composite structures.
cohesive zone model / IGA / Kirchhoff-Love model / thin shell analysis / delamination
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Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature
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