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- Title
The Influence of the Boundary Conditions on Low-Velocity Impact Composite Damage.
- Authors
Amaro, A. M.; Reis, P. N. B.; Magalhães, A. G.; de Moura, M. F. S. F.
- Abstract
The objective of this work was to study the influence of the boundary conditions on low-velocity impact behaviour of carbon-epoxy composite plates. Experimental work and numerical analysis were performed on [0,90] laminates. The influence of different boundary conditions on the impacted plates was analysed considering rectangular and square plates. The X-radiography was used as a non-destructive technique to evaluate the internal damage caused by impact loading. A three-dimensional numerical analysis was also performed considering progressive damage modelling. The model includes three-dimensional solid elements and interface finite elements including a cohesive mixed-mode damage model, which allows simulating delamination between different oriented layers. It was verified that plate's boundary conditions have influence on the delaminated area. Good agreement between experimental and numerical analysis for shape, orientation and size of the delamination was obtained.
- Subjects
BOUNDARY value problems; DELAMINATION of composite materials; IMPACT loads; NUMERICAL analysis; DYNAMIC testing of materials; ENGINEERING plate fatigue
- Publication
Strain, 2011, Vol 47, pe220
- ISSN
0039-2103
- Publication type
Article
- DOI
10.1111/j.1475-1305.2008.00534.x