Recent developments in applied mathematics and mechanics: theory, experiment and practice. Devoted to the 80th anniversary of academician N.N.Yanenko

Akademgorodok, Novosibirsk, Russia, June 24 - 29, 2001

Abstracts

Siberian participants

Heat effects for 3D simulation of impact problems

Vidischeva E.B., Zelepugin S.A., Platova T.M.

Department for Structural Macrokinetics of the Tomsk Scientific Centre SD RAS,
Tomsk State University (Tomsk)

For an estimation of the characteristics of materials at dynamic loading the problem of interaction of cylindrical bodies with a rigid wall is traditionally studied. In the given work this problem was investigated numerically in three-dimensional statement by finite element method. Two series of numerical computations were carried out using experimental results. In the first one the influence of preliminary heating of steel, copper, aluminum and uranium cylinders on strength characteristics was investigated. In the second one the process of deformation of steel cylinders with various strength characteristics was investigated using the model of heat effects. The relation of final length of the cylinder to initial one was used as the criterion of comparison of numerical and experimental results. The good correlations of relative lengths of cylinders received in experiments and computations at room and elevated temperatures were observed.

Full Text in Russian: PDF (265 kb)
Note. Abstracts are published in author's edition

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