  Taylor impacts tests were originally devised to determine the dynamic yield
strength of materials at moderate strain rates. More recently, such tests have
been used extensively to validate numerical codes for the simulation of plastic
deformation. In this work, we use the material point method to simulate a
number of Taylor impact tests to compare different Johnson-Cook, Mechanical
Threshold Stress, and Steinberg-Guinan-Cochran plasticity models and the vob
Mises and Gurson-Tvergaard-Needleman yield conditions. In addition to room
temperature Taylor tests, high temperature tests have been performed and
compared with experimental data.
