The Influence of the Boundary Conditions on Low-Velocity Impact Composite Damage

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Amaro, AM (Author) Other; Reis, PNB (Author) Other; Magalhaes, AG (Author) Other; de Moura, MFSF (Author) FEUP

Journal

Title: Strain

Vol. 47

Pages: E220-E226

ISSN: 0039-2103

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 23 Citations

ISI Web of Science

Scopus - 36 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-002-QK5

DOI: 10.1111/j.1475-1305.2008.00534.x

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7