On the failure of ellipticity and the emergence of discontinuous deformation gradients in plane finite elastostatics J. K. KnowlesEli Sternberg OriginalPaper Pages: 329 - 379
Frictionless indentation by an elastic punch: a dynamic Hertzian contact problem L. M. Brock OriginalPaper Pages: 381 - 392
Dual extremum principles and error bounds in nonlinear elasticity theory H. Stumpf OriginalPaper Pages: 425 - 438