An element subscale refinement for representation of the progressive fracture based on the phantom node approach
Artikel i vetenskaplig tidskrift, 2018

© 2017 Elsevier Ltd 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.

Dynamic ductile fracture

Subscale refinement

Phantom node method

Crack tip element

Shell

Författare

Salar Mostofizadeh

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

F.P. van der Meer

Technische Universiteit Delft

Martin Fagerström

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

L.J. Sluys

Technische Universiteit Delft

Ragnar Larsson

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Computers and Structures

0045-7949 (ISSN)

Vol. 196 134-145

Ämneskategorier

Maskinteknik

Teknisk mekanik

Beräkningsmatematik

Styrkeområden

Transport

Materialvetenskap

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

DOI

10.1016/j.compstruc.2017.11.009

Mer information

Senast uppdaterat

2018-05-14