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The aim of this paper is to study the unilateral contact condition (Signorini problem) for polyconvex functionals with linear growth at infinity. We find the lower semicontinuous relaxation of the original functional (defined over a subset of the space of bounded variations BV(Ω)) and we prove the existence theorem. Moreover, we discuss the Winkler unilateral contact condition. As an application, we show a few examples of elastic-plastic potentials for finite displacements.
Jarosław L. Bojarski. "The relaxation of the Signorini problem for polyconvex functionals with linear growth at infinity." Applicationes Mathematicae 32.4 (2005): 443-464. <http://eudml.org/doc/279593>.
@article{JarosławL2005, abstract = {The aim of this paper is to study the unilateral contact condition (Signorini problem) for polyconvex functionals with linear growth at infinity. We find the lower semicontinuous relaxation of the original functional (defined over a subset of the space of bounded variations BV(Ω)) and we prove the existence theorem. Moreover, we discuss the Winkler unilateral contact condition. As an application, we show a few examples of elastic-plastic potentials for finite displacements.}, author = {Jarosław L. Bojarski}, journal = {Applicationes Mathematicae}, keywords = {nonlinear elasticity; lower semicontinuous relaxation of a polyconvex functional; Signorini problem; Winkler unilateral contact condition; variations}, language = {eng}, number = {4}, pages = {443-464}, title = {The relaxation of the Signorini problem for polyconvex functionals with linear growth at infinity}, url = {http://eudml.org/doc/279593}, volume = {32}, year = {2005}, }
TY - JOUR AU - Jarosław L. Bojarski TI - The relaxation of the Signorini problem for polyconvex functionals with linear growth at infinity JO - Applicationes Mathematicae PY - 2005 VL - 32 IS - 4 SP - 443 EP - 464 AB - The aim of this paper is to study the unilateral contact condition (Signorini problem) for polyconvex functionals with linear growth at infinity. We find the lower semicontinuous relaxation of the original functional (defined over a subset of the space of bounded variations BV(Ω)) and we prove the existence theorem. Moreover, we discuss the Winkler unilateral contact condition. As an application, we show a few examples of elastic-plastic potentials for finite displacements. LA - eng KW - nonlinear elasticity; lower semicontinuous relaxation of a polyconvex functional; Signorini problem; Winkler unilateral contact condition; variations UR - http://eudml.org/doc/279593 ER -