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The Influence of the Boundary Conditions on Low‐Velocity Impact Composite Damage
Author(s) -
Amaro A. M.,
Reis P. N. B.,
Magalhães A. G.,
de Moura M. F. S. F.
Publication year - 2011
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.2008.00534.x
Subject(s) - delamination (geology) , materials science , composite number , epoxy , composite material , boundary value problem , work (physics) , numerical analysis , structural engineering , finite element method , boundary (topology) , engineering , mathematics , geology , mechanical engineering , paleontology , mathematical analysis , subduction , tectonics
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 4 ,90 4 ] s 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.