ISSN:
1573-9325
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. We proposed a model of the strain behavior of solids in a wide range of loading rates which was used to examine the special features of formation of wave fronts of the stresses in shock waves of moderate intensity. The results show that the rapid variation of the relaxation properties of the materials in the loading waves is the result of the kinetic transition in respect of the parameter which characterizes the orientation mode of the microcracks, and is accompanied by splitting of the shock wave into an elastic precursor and a relaxation (plastic) wave. 2. The parameters of the models were determined using the data obtained in the quastistatic experiments with the kinetics of cumulation of microcracks. Dynamic failureof an aluminum sheet in collision with a quartz disk was calculated. 3. The kinetics of transition from disperse failure to macroscopic failure were calculated and the relationship was described between the self-modeling nature of the process of failure in its developed stage and the effect of the “dynamic” portion in spallation and the overloading phenomenon in shock-wave failure of the sheets.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01529610
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