ASTM E8 Tensile Test - Explicit or Implicit
I am investigating stress/strain relationship using LS-DYNA SPH Form 12 and Johnson Cook material model for different strain rates starting with ASTM E8 crosshead strain rate of 0.015 s-1. However, when I use explicit in LS-DYNA it is taking 2777777 hrs 46 mins.
I then tried Implicit by invoking the implicit solver. Took very long and no additional d3plot after initial.
Obtained a paper online that says to use Time Condense. But do not understand how to set it up in explicit.
Based on the specimen dimension, the crosshead speed is 0.008 mm/s. Then I need to double this 4-5 times. But I am stuck with a very long simulation time for the first run (0.008 mm/s)
Can you kindly assist in solving my issue. I am using a school supercomputer.