KINETIC-STATIC MODEL FOR THE STRESS RELAXATION

V. A. Bychencov, K. E. Vasilchenko, A. A. Gornovoi
VANT. Ser.: Mat. Mod. Fiz. Proc. 1995. Вып.1-2. С. 9-12.

      A computational model is presented for the elastic-plastic flow in terms of relaxation kinetics for shear stresses in a solid body and destruction kinetics. For the submicrosecond of lifetime a dilatone model of kinetic strength theory is used obtained from statistic theory. The same approach is used to the simulation of spalling distruction and the relaxation of compressing stresses. The Lagrangian numerical method is developed for dynamic applications. The computational results for the attenuation of the clastic precursor in steel and cylindrical steel shell motion are compared with the experiment.