Underwater impulsive loading-induced dynamic failures of monolithic composite panel

Tran, P 2014, 'Underwater impulsive loading-induced dynamic failures of monolithic composite panel', Applied Mechanics and Materials, vol. 553, pp. 539-544.

Document type: Journal Article
Collection: Journal Articles

Title Underwater impulsive loading-induced dynamic failures of monolithic composite panel
Author(s) Tran, P
Year 2014
Journal name Applied Mechanics and Materials
Volume number 553
Start page 539
End page 544
Total pages 6
Publisher Scientific.Net
Abstract Designing light-weight high-performance materials which can sustain high impulsive loadings is of great interest to marine applications. In this study, a finite element fluid-structure interaction model is developed to understand the deformation and failure mechanisms of both monolithic and sandwich composite panels. Fiber (E-glass fiber) and matrix (vinylester resin) damage and degradation in individual unidirectional composite laminas are modeled with Hashin's model. The delamination between laminas is modeled by developing a strain rate sensitive cohesive law. The deformation of the core (H250 PVC foam) in sandwich panels is modelled as a crushable foam plasticity model with volumetric hardening and strain rate sensitivity as well. The deformation history, fiber/matrix damage patterns in laminas, and inter-lamina delamination in both monolithic and sandwich composite panels are identified and compared with the experimental observations. The model suggests that the foam plays an important role in improving the performance of the sandwich panels by suppressing the transmitted impulsive acting on the back-sheets. © (2014) Trans Tech Publications, Switzerland.
Subject Composite and Hybrid Materials
Numerical Modelling and Mechanical Characterisation
Solid Mechanics
Keyword(s) Composite damage
Composite laminate
Fluid-structure interaction
Impulsive loading
DOI - identifier 10.4028/www.scientific.net/AMM.553.539
Copyright notice © (2014) Trans Tech Publications, Switzerland
ISSN 1660-9336
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