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Reference.org
Signorini problem
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<p>The Signorini problem is an <a href="/facts/Linear_elasticity/pPLIvs7a">elastostatics</a> problem in <a href="/facts/Linear_elasticity/pPLIvs7a">linear elasticity</a>: it consists in finding the <a href="/facts/Linear_elasticity/pPLIvs7a">elastic equilibrium</a> <a href="/facts/Continuum_mechanics/vI7LpFDk">configuration</a> of an <a href="/facts/Anisotropy/YMqTQWVB">anisotropic</a> <a href="/facts/Homogeneous_media/J4v4DwfF">non-homogeneous</a> <a href="/facts/Physical_body/WhqjK6xo">elastic body</a>, resting on a <a href="/facts/Rigid_body/THezBlq2">rigid</a> <a href="/facts/Friction/d0108Rpu">frictionless</a> <a href="/facts/Surface_(topology)/jK1b1KIG">surface</a> and subject only to its <a href="/facts/Weight/9NMHCsQd">mass forces</a>. The name was coined by <a href="/facts/Gaetano_Fichera/gMo4k9mu">Gaetano Fichera</a> to honour his teacher, <a href="/facts/Antonio_Signorini_(physicist)/a5hIEQrv">Antonio Signorini</a>: the original name coined by him is problem with ambiguous <a href="/facts/Boundary_value_problem/QEfmUqmP">boundary conditions</a>. </p>