Solution of the High-Pressure Riemann problem for Solids Including Rigidity Effects

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概要

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• An analytical solution of the high-pressure Riemann problem for solids whichsatisfy the Griineisen type equation of state has been obtained. Square of acoustic im-pedance along an isentrope passing through any thermodynatnic states is written as apolynomial of the homogeneous solution, X of the differential equation for the isen-tropic pressure change. The form of equation of :;tate, p(v, e) were calculated basedon this assumption. Furthermore, elastic effects are included into the equation ofstate, and the von Mises yielding condition is assumed to bc valid up to very highpressures. As a typical example, the elastic-plastic Riemann jcroblem for the case ofaluminum are solved after rather simple calculation.[high-pressure shock wave, Riemann problem, elastic-plastic flow, numerical lf methodl

• 社団法人日本物理学会の論文
• 1989-05-15

著者

• Nagayama Kunihito

  Institut Fur Angewandte Physik Technische Hochschule Darmstadt:department Of Applied Science Faculty

関連論文

• Solution of the High-Pressure Riemann problem for Solids Including Rigidity Effects

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