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Isogeometric cohesive zone model for thin shell delamination analysis based on Kirchhoff-Love shell model

Thai, Tran Quoc / Rabczuk, Timon / Zhuang, Xiaoying

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.

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Isogeometric cohesive zone model for thin shell delamination analysis based on Kirchhoff-Love shell model

Thai, Tran Quoc / Rabczuk, Timon / Zhuang, Xiaoying

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.

Isogeometric cohesive zone model for thin shell delamination analysis based on Kirchhoff-Love shell model

Thai, Tran Quoc / Rabczuk, Timon / Zhuang, Xiaoying

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.

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Title:

Isogeometric cohesive zone model for thin shell delamination analysis based on Kirchhoff-Love shell model

Additional title:

Front. Struct. Civ. Eng.

Contributors:

Thai, Tran Quoc (author) / Rabczuk, Timon (author) / Zhuang, Xiaoying (author)

Published in:

Frontiers of Structural and Civil Engineering ; 14 ; 267-279

Publication date:

2020-04-01

Size:

13 pages

ISSN:

2095-2449 , 2095-2430

DOI:

https://doi.org/10.1007/s11709-019-0567-x

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

cohesive zone model , IGA , Kirchhoff-Love model , thin shell analysis , delamination Engineering , Civil Engineering , Cities, Countries, Regions

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