(See the equation for effective plastic strain in the description of Material Model 3 in This particular definition applies to J2 plasticity (Ref: Ticket#2017110110000132).
In tensorial notation,Įpspl = integral over time of (depspl) = integral dt
(Dp)ij, the plastic component of the rate of deformation tensor. Monotonically increasing scalar value which is calculated incrementally as a function of effective plastic strain and equivalent plastic strain are interchangeable terms, that is, they mean the same thing. Uses the same equation as above in defining "equivalent plastic strain". Increases whenever the material is actively yielding, i.e.,whenever the state of stress is on the yield surface. It's non-negative and monotonically increasing. Calculated incrementally using the equivalent plastic strain rate. The LS-DYNA Theory Manual, in the description of mat 3, defines effective plastic strain as follows,Ĭharacteristics of effective plastic strain are:
0 kommentar(er)
