strain rate material modeling
strain rate material modeling
(OP)
I want to create stress/strain curves for Higher Strain Rates from an available stress/strain curve?
I am interested on the mathematical formulation aspect to generate a Dyna Material card.
I am interested on the mathematical formulation aspect to generate a Dyna Material card.





RE: strain rate material modeling
RE: strain rate material modeling
The work involved testing using hydraulic machines with piston speeds of around 10 metres/second.
The effect of specimen heating on flow stresses was also evaluated by using controlled energy inputs into the test piece.
I was involved with the design of the machines used to carry out the testing programme but never gained access to the results.
It may be there is some published data by now as this work was carried out in around 1990.
RE: strain rate material modeling
This is a major area of ongoing research. People build machines that let them deform samples at very high rates (think higher than 10e4). Most tensile testing is done at 10e-3 to 10e-1 or so.
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P.E. Metallurgy, Plymouth Tube