Nguyen, Vinh Phu ![]() ![]() ![]() |
Abstract
We propose an automatic numerical method requiring minimal user intervention to simulate delamination in composite structures. We develop isogeometric cohesive elements for two- and three-dimensional delamination by exploiting the knot insertion algorithm directly from CAD data to generate cohesive elements along delamination. A complete computational framework is presented including pre-processing, processing and post-processing. They are explained in detail and implemented in MIGFEM – an open source Matlab Isogemetric Analysis code developed by the authors. The composite laminates are modeled using both NURBS solid and rotation-free shell elements. Several two and three dimensional examples ranging from standard delamination tests (the mixed mode bending test) to the L-shaped specimen with a fillet, three dimensional (3D) double cantilever beam and a 3D singly curved thick-walled laminate are provided. The method proposed provides a bi-directional system in which one can go forward from CAD to analysis and backwards from analysis to CAD. This is believed to facilitate the design of composite structures.
Item Type: | Article |
---|---|
Date Type: | Publication |
Status: | Published |
Schools: | Engineering Advanced Research Computing @ Cardiff (ARCCA) |
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
Uncontrolled Keywords: | A. Laminates; B. Delamination; C. Finite element analysis; Isogeometric analysis |
Publisher: | Elsevier |
ISSN: | 1359-8368 |
Funders: | EU FP7, EPSRC, European Research Council (ERC) |
Last Modified: | 11 Mar 2023 02:14 |
URI: | https://orca.cardiff.ac.uk/id/eprint/56418 |
Citation Data
Cited 55 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)
![]() |
Edit Item |