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Low-velocity impact predictions of composite laminates using a continuum shell based modeling approach part A: Impact study.
- Source :
-
International Journal of Solids & Structures . Dec2018, Vol. 155, p185-200. 16p. - Publication Year :
- 2018
-
Abstract
- Abstract This paper introduces a shell based finite element (FE) model for predicting the impact response and dominant failure mechanisms of fiber reinforced polymer matrix composites subject to low-velocity impact. The model utilizes Enhanced Schapery Theory (EST) for capturing the matrix non-linearity due to micro cracking as well as macroscopic intra-lamina failure, that is, matrix cracking and fiber rupture in the 1–2 failure plane of a lamina. Discrete cohesive elements (DCZM) are utilized for capturing the inter-lamina failure initiation and propagation. The intra- and inter-lamina damage and failure models are implemented as user subroutines in the commercial finite element solver, ABAQUS Explicit. The model is compared against low-velocity impact experimental data. High fidelity non-destructive inspection (NDI) methods are used to quantify the impact damage for a detailed comparison to the model predictions. The modeling technique shows excellent agreement with experimental results, both for impact response and damage evolution. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00207683
- Volume :
- 155
- Database :
- Academic Search Index
- Journal :
- International Journal of Solids & Structures
- Publication Type :
- Academic Journal
- Accession number :
- 133138004
- Full Text :
- https://doi.org/10.1016/j.ijsolstr.2018.07.020