Determining the character of the damage to copper-coated specimens loaded by the explosion of a lamellar charge

Results are presented from a study of the fracture of specimens of low-carbon steel and copper with galvanic copper coating when the specimens are loaded by the explosion of a lamellar charge. Data on the dynamic adhesive strength of the copper coating and the cleavage strength of the steel is presented in the form of the dependence of the critical negative pressure at the fracture origin on the pressure gradient in the tensile pulse. Information on the character of the damage to the specimens is obtained by metallographic and automated quantitative analysis.