A progressive failure model for composite laminates subjected to low velocity impact damage

M. V. Donadon, L. Iannucci, B. G. Falzon, J. M. Hodgkinson, S.F.M. de Almeida

Research output: Contribution to journalArticlepeer-review

288 Citations (Scopus)

Abstract

This paper presents a 3-D failure model for predicting the dynamic material response of composite laminates under impact loading. The formulation is based on the Continuum Damage Mechanics (CDM) approach and enables the control of the energy dissipation associated with each failure mode regardless of mesh refinement and fracture plane orientation. Internal thermodynamically irreversible damage variables were defined in order to quantify damage concentration associated with each possible failure mode and predict the gradual stiffness reduction during the impact damage process. The material model has been implemented into LS-DYNA explicit finite element code within solid elements and it has proven to be capable of reproducing experimental results with good accuracy in terms of static/dynamic responses, absorbed energy and extent of damage.
Original languageEnglish
Pages (from-to)1232-1252
Number of pages21
JournalComputers and Structures
Volume86
Issue number11-12
Early online date18 Jan 2008
DOIs
Publication statusPublished - Jun 2008

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