Delamination behavior of UHMWPE soft layered composites
作者： Ido Meshi , Iris Amarilio , Dana Benes , Rami Haj-Ali , None
DOI: 10.1016/J.COMPOSITESB.2016.05.027
关键词:
摘要: Abstract Ultra-high-molecular-weight polyethylene (UHMWPE) fiber based soft polymeric composite laminates are widely used in ballistic applications due to their high tensile strength and low density. The delamination between the layers is an important energy dissipation mode for resistance. In this study, two experimental setups proposed examined behavior of UHMWPE composites. first mode-I setup consists a modified double cantilever beam (DCB) test. second new interlaminar shear (ILS) test characterize failure mode-II, which known be major drawback these composites poor matrix-fiber interphase bond. Digital Image Correlation (DIC) method employed extract full field strain mode-II examine its uniformity. Crack length was also quantified using optical means. surfaces characterized Scanning Electron Microscopy (SEM) study propagation mechanism. results commercial Dyneema HB26 (DH) cross-ply multi-layered provide insights on material crack behavior. ILS tests unique way impose close uniform dominant strain. DH found significantly lower than strength.
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