STANDARD FOR DEFORMATION OF STRAIN INTENSITY COEFFICIENT OF VISCOUS MATERIALS

摘要

The invention relates to test equipment, specifically to the samples to determine the fracture toughness Kic viscous materials. The purpose of the invention - increase reliability characteristics Kic. To achieve a positive effect based on either side of the incision formed multidirectional thread, the sample provided with two threaded rings of material whose hardness is higher than the hardness of the base material, each screwed with interference on the thread of the respective thickened portion, and the ends of the rings in contact with one another. 2 yl., 1 tab. .