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Publicações
Patel, SD. and Guedes Soares, C. (2017), “Probability of failure of composite beams under high velocity impact”, Progress in the Analysis and Design of Marine Structures, Guedes Soares, C. & Garbatov Y. (Eds.), Taylor & Francis Group, London, UK, pp. 487-495
Progressive damage modeling on fiber reinforced composite plates is studied taking material properties and initial velocity as random parameters. S2 Glass composite plates are susceptible to damage due to impact by foreign objects and in plane loading. In order to assess the safe load carrying capacity and the probability of failure under impact, stochastic dynamic analysis of composite plate subjected to high velocity impact is carried out. During impact, the in-plane damage modes such as matrix cracking, fiber failure and shear cracking are modeled using a failure criterion. The out of plane de-lamination is modeled using cohesive surfaces. Random parameters represent various characteristics appearing in the limit state function. The probabilistic analysis and reliability prediction of the system is carried out using Gaussian response surface method and the validity of the method for the present problem is establish using Monte Carlo simulation procedure. Sensitivity analysis of the probability of failure with respect to random parameters considered is an important study for design optimization. The safety level quantification is achieved in terms of reliability level targeted.
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