The static, flexural responses of two Glass Fiber Reinforced Plastic (GFRP) — SMC and Preform — material systems of varying fiber volume fractions were investigated. Failure mechanisms activated upon loading have been characterized through the use of numerical modeling during the damage progression. Both material systems were consolidated with a discontinuous, randomly oriented fiber distribution to give a quasi-isotropic, elastic behavior within the fiber distribution plane. Damage evolved and energy absorbed at each stage of failure is critical to the understanding of the progressive nature and the materials ability to mechanically store and dissipate energy. Preliminary experimental results show that the progressive nature of the damage is found to be consistent with the load redistribution at each stage.

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