1. A finite element method for a class of contact-impact problems;Hughes;Computer Methods in Applied Mechanics and Engineering,1976
2. Hallquist JO. Nike2D: an implicit, finite deformation, finite element code for analyzing the static and dynamic response of two-dimensional solids. Technical Report UCRL-52678, Lawrence Livermore National Laboratory, University of California, Livermore, 1979.
3. A solution method for planar and axisymmetric contact problems;Bathe;International Journal for Numerical Methods in Engineering,1985
4. Sliding interfaces with contact-impact in large-scale Lagrange computations;Hallquist;Computer Methods in Applied Mechanics and Engineering,1985