An element subscale refinement for representation of the progressive fracture based on the phantom node approach

S. Mostofizadeh; F. P. van der Meer; M. Fagerström; L. J. Sluys; R Larsson

doi:10.1016/j.compstruc.2017.11.009

An element subscale refinement for representation of the progressive fracture based on the phantom node approach

S. Mostofizadeh^*, F. P. van der Meer, M. Fagerström, L. J. Sluys, R Larsson

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

3 Citations (Scopus)

Abstract

A new approach for the analysis of the ductile fracture of thin-walled large scale structures is developed. The method proposes a subscale refinement of the elements containing the crack. It allows for smooth progression of the crack without furnishing required level of the mesh refinement, and a more detailed representation of the crack tip and crack kink within the cracked elements. This approach is based on the phantom node method and is intended to be applicable for different types of elements including both low and high order elements. Numerical examples for dynamic crack propagation are presented and compared to conventional solutions to prove the accuracy and effectiveness of the proposed approach.

Original language	English
Pages (from-to)	134-145
Number of pages	12
Journal	Computers & Structures
Volume	196
DOIs	https://doi.org/10.1016/j.compstruc.2017.11.009
Publication status	Published - 1 Feb 2018

Keywords

Crack tip element
Dynamic ductile fracture
Phantom node method
Shell
Subscale refinement

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10.1016/j.compstruc.2017.11.009

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title = "An element subscale refinement for representation of the progressive fracture based on the phantom node approach",

abstract = "A new approach for the analysis of the ductile fracture of thin-walled large scale structures is developed. The method proposes a subscale refinement of the elements containing the crack. It allows for smooth progression of the crack without furnishing required level of the mesh refinement, and a more detailed representation of the crack tip and crack kink within the cracked elements. This approach is based on the phantom node method and is intended to be applicable for different types of elements including both low and high order elements. Numerical examples for dynamic crack propagation are presented and compared to conventional solutions to prove the accuracy and effectiveness of the proposed approach.",

keywords = "Crack tip element, Dynamic ductile fracture, Phantom node method, Shell, Subscale refinement",

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AU - Mostofizadeh, S.

AU - van der Meer, F. P.

AU - Fagerström, M.

AU - Sluys, L. J.

AU - Larsson, R

PY - 2018/2/1

Y1 - 2018/2/1

N2 - A new approach for the analysis of the ductile fracture of thin-walled large scale structures is developed. The method proposes a subscale refinement of the elements containing the crack. It allows for smooth progression of the crack without furnishing required level of the mesh refinement, and a more detailed representation of the crack tip and crack kink within the cracked elements. This approach is based on the phantom node method and is intended to be applicable for different types of elements including both low and high order elements. Numerical examples for dynamic crack propagation are presented and compared to conventional solutions to prove the accuracy and effectiveness of the proposed approach.

AB - A new approach for the analysis of the ductile fracture of thin-walled large scale structures is developed. The method proposes a subscale refinement of the elements containing the crack. It allows for smooth progression of the crack without furnishing required level of the mesh refinement, and a more detailed representation of the crack tip and crack kink within the cracked elements. This approach is based on the phantom node method and is intended to be applicable for different types of elements including both low and high order elements. Numerical examples for dynamic crack propagation are presented and compared to conventional solutions to prove the accuracy and effectiveness of the proposed approach.

KW - Crack tip element

KW - Dynamic ductile fracture

KW - Phantom node method

KW - Shell

KW - Subscale refinement

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DO - 10.1016/j.compstruc.2017.11.009

M3 - Article

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SN - 0045-7949

VL - 196

SP - 134

EP - 145

JO - Computers & Structures

JF - Computers & Structures

ER -

An element subscale refinement for representation of the progressive fracture based on the phantom node approach

Abstract

Keywords

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