Equilong-term strength surfaces of organic textolite in the plane stressed state

摘要: Long-term strength tests of textolite were conducted for seven different particular cases the plane stressed state. Maximum times to failure which experimental data obtained reach 2500 h. It is established from analysis test results that long-term curves types state under consideration are closely similar. The condition in general case constant levels stresses taken as equation short-term surface time factor introduced parametrically; this case, apparent observance similarity between equilong-term surfaces makes it possible express tensor components characterizing by and a certain monotonically decreasing function, independent form