Journal
MATERIALS
Volume 14, Issue 24, Pages -Publisher
MDPI
DOI: 10.3390/ma14247800
Keywords
GLARE 5-2; 1; aluminum 2024-T3; multiple impact; BVID; CVID; FEM (finite element method); failure criteria; VUMAT
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Funding
- University of Ulsan [2019-0375]
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Experiments and finite element simulations were conducted to study multiple impact behavior on GLARE 5-2/1 and aluminum 2024-T3, showing good agreement between experimental and FEM results.
Experiments and finite element simulations for multiple impact were performed on GLARE 5-2/1 and aluminum 2024-T3. Experiments were conducted on aluminum 2024-T3 and GLARE 5-2/1 at diverse impact energies to produce BVID (barely visible impact damage) and CVID (clearly visible impact damage). The finite element model was developed for multiple impact analysis using ABAQUS software and was confirmed by comparing the finite element analysis outcomes with experimental results. The two- and three-dimensional failure criteria model was applied to predict multiple impact behavior such as load-time history, maximum deflection-impact energy history, and damage progression. In addition, a user subroutine VUMAT was created to represent a three-dimensional progressive failure and was linked with ABAQUS. FEM results showed good agreement with experimental data.
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