Abstract
Competitive deformation processes between interfacial “debonding” and matrix cracking at the fibre ends is shown for the short-fibre reinforced composites of polyvinyl chloride (PVC). The increase of interfacial shear strength by chemical coupling prevents early failure at the interface, thus increasing the tensile failure stress of short-fibre composites. The previously proposed general yield criterion for PVC and its short-fibre composites is also examined. No significant effect due to improved fibre-matrix adhesion on the upper shear yielding of short-fibre composites is observed. The matrix flow in the post-yield region is less restricted when debonding occurs.
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Yuan, J., Hiltner, A., Baer, E. et al. The mechanical behaviour of PVC short-fibre composites. J Mater Sci 20, 4377–4386 (1985). https://doi.org/10.1007/BF00559325
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DOI: https://doi.org/10.1007/BF00559325