Abstract
A 3-D explicit dynamic finite element analysis is performed to determine the contact force and displacement between the impactor and the target. The uncertainties associated with the properties of the composite material, loading condition, and assessment of critical stresses affect the failure limit state to a greater extent. The Gaussian response surface method is used to predict the probability of failure. It is found that the system probability of failure is influenced more by delamination than the failure due to matrix cracking. Shear strength (T12) and Young's modulus (E1 and E3) are the most sensitive parameters to influence the composite plate reliability.
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