TY  - RPRT
TI  - New material point method contact algorithms for improved accuracy, large-deformation problems, and proper null-space filtering
AU  - Nairn, John A.
AU  - Hammerquist, Chad C.
AU  - Smith, Grant D.
PY  - 2020
DO  - 10.1016/j.cma.2020.112859
UR  - https://www.osti.gov/biblio/1682411
ID  - 1682411
ER  -