抄録
The anisotropy of tensile yielding strength σTb in each position of a ABS-resin injection-molded plate was investigated. As the result, the relation between σTb and the tensile direction angle θ in each position was expressed by the following experimental formula : σTb= A0 + Acos2(θ+α), In this formula, A0 was constant, being independent of the position in the plate. The values of A and α were measures of the anisotropy in strength and were controlled by the deformation aspect ratio of rubber particles, being dependent of the position of the ABS-resin plate.