A proposal to Investigate Stitched Composites Undergoing Delamination Using Multiscale Modeling Approach
Carbon fiber-reinforced composite (CFRC) materials are extensively used in the aerospace industry to enable significant weight savings due to their high in-plane specific strength and stiffness. However, this benefit is countered by their low out-of-plane properties, such as interlaminar strength, that make CFRC structures susceptible to delamination. To prevent delamination, through-the-thickness stitching has been shown experimentally alleviate the damage propagation due to impact in CFRCs. Material optimization of stitched composites is required to reduce delamination at a macroscale. Atomistic to macroscale structure-property relationships need to be established and quantified to reduce delamination behavior of stitched composites. This proposal presents a pathway to develop hierarchical multiscale modeling approach from all length scales to reduce delamination.
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