DYNAMIC STRESS-CONCENTRATION EFFECT ON STRESS WAVES IN COMPOSITE MODELS WITH DIFFERENT FIBER-END GEOMETRIES （Abstract）
来源期刊：昆明理工大学学报(自然科学版)1988年第6期
论文作者：H. Pih Q.Bi Y.Y.Chen P.Ye
摘 要：<正> The stress-concentration effect of fiber-end geometries on the propagating stress waves in composite models was investigated by the dynamic photoelastic method. Aluminum fibers with rectangular, semicircular, V-and wedge-shape ends simulating such materials as reinforced concrete and fiber-bundle-reinforced composites were cast in epoxy resin to form the models. Impact was applide by the bullet of a rifle. The effects of the reinforced rod or fiber-bundle ends on the dynamic birefringent patterns were analyzed by comparing the fringe patterns at the same locations in a plain model of identical Contour under the same loading conditions.
H. Pih，Q.Bi，Y.Y.Chen，P.Ye
摘 要：<正> The stress-concentration effect of fiber-end geometries on the propagating stress waves in composite models was investigated by the dynamic photoelastic method. Aluminum fibers with rectangular, semicircular, V-and wedge-shape ends simulating such materials as reinforced concrete and fiber-bundle-reinforced composites were cast in epoxy resin to form the models. Impact was applide by the bullet of a rifle. The effects of the reinforced rod or fiber-bundle ends on the dynamic birefringent patterns were analyzed by comparing the fringe patterns at the same locations in a plain model of identical Contour under the same loading conditions.
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