ガラス繊維強化複合材の動的破壊靱性

概要

論文の詳細を見る
Fracture toughness tests of glass-fiber-reinforced plastics under high loading rates were performed to clarify the dynamic effects on volume fractions and directions of glass fibers in plastic materials. The results are summarized as follows : (1)Linear elastic fractures occurred under both static and dynamic loading conditions when the crack propagates parallel to the plane of the glass fiber cloth (edge direction). On the other hand, nonlinear fractures are observed when the crack grows perpendicular to the plane of the fiber cloth (flat direction). However, the nonlinearity decreases with increasing loading rate. (2)In both directions, the dynamic fracture toughness decreases with increasing loading rate when the volume fractions are below 20%. (3) With volume fractions above 40%, dynamic effects on fracture toughness become negligibly small in both directions.
一般社団法人日本機械学会の論文
1994-01-25