Abstract
The ballistic protection performance of laminated body armor may be significantly reduced through defects such as debonding/delamination. To understand the effect of a pre-existing defect on body armor performance, a two-dimensional finite element model was developed. The numerical study shows that the laminated armor system with a pre-existing debonding/delamination has poorer ballistic protection performance than that without any imperfection. Also, it was noted that the ballistic protection performance of the laminated armor system with a pre-existing debonding/delamination is sensitive to the changes in the parameters considered such as size, location and pattern of the pre-existing debonding/delamination.
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