Simulation of low-temperature discontinuous yield by the method of additional pulse loading
On the basis of the proposed method of additional pulse loading of static preloaded specimens at temperatures of 293 and 77 K, we theoretically and experimentally established the possibility of effects similar to the effects of low-temperature discontinuous yield. The obtained effects are caused by operating-technological factors and can be observed only in the process of deep cooling. In particular, by using 03Kh20N16AG6 steel as an example, we show that as the loading rate, the level of preliminarily inclused strains in the material, or the amount of accumulated elastic energy of the loaded system increase, the jumplike development of strains results in a sharp decrease in strain resistance.
KeywordsHigh Strain Rate Elastic Energy Thermal Breakdown Deep Cool Cryogenic Engineer
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