We show that in a two-dimensional bounded open set whose complement has a finite number of connected components, the vector fields uH 1(Ωℝ2) are dense in the space of fields whose symmetrized gradient e(u) is in L 2(Ωℝ4). This allows us to show the continuity of some linearized elasticity problems with respect to variations of the set, with applications to shape optimization or the study of crack evolution.
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(Accepted September 18, 2002) Published online February 4, 2003
Commmunicated by V. Šverák
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Chambolle, A. A Density Result in Two-Dimensional Linearized Elasticity, and Applications. Arch. Rational Mech. Anal. 167, 211–233 (2003). https://doi.org/10.1007/s00205-002-0240-7
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DOI: https://doi.org/10.1007/s00205-002-0240-7