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arXiv 2011.061402020-11math.AP

Stability of classical shock fronts for compressible hyperelastic materials of Hadamard type

Ramón G. Plaza, Fabio Vallejo

备注：: Accepted for publication in Arch. Ration. Mech. Anal. 59 pages, 3 figures
发表信息：: Arch. Ration. Mech. Anal. 2022
DOI：: 10.1007/s00205-021-01751-3

英文摘要：

This paper studies the uniform and weak Lopatinski\uı conditions associated to classical (Lax) shock fronts of arbitrary amplitude for compressible hyperelastic materials of Hadamard type in several space dimensions. Thanks to the seminal works of Majda (Mem. Amer. Math. Soc. 43 (1983), no. 281; Mem. Amer. Math. Soc. 41 (1983), no. 275) and Métivier (Trans. Amer. Math. Soc. 296 (1986), pp. 431-479; Comm. Partial Diff. Eqs. 15 (1990), no. 7, pp. 983-1028), the uniform Lopatinski\uı condition ensures the local-in-time, multidimensional, nonlinear stability of such fronts. The stability function (also called Lopatinski\uı determinant) for shocks of arbitrary amplitude in this large class of hyperelastic materials is computed explicitly. This information is used to establish the conditions for uniform and weak shock stability in terms of the parameters of the shock and of the elastic moduli of the material.

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