Plasticity and Creep of Metals

Nucleation of cracks in an isotropic medium with periodic system of rigid inclusions under transverse shear

“…Using the procedure for converting to an algebraic system [21,24], we reduce main resolving Eqs. (17), (18), (19), (20) to the totality of two infinite systems of linear algebraic equations and to two finite algebraic systems with respect to approximate values p 0 k = g(η k ) (k = 1, 2, . .…”

“…Here, the size of the pre-fracture zone is unknown in advance and has to be determined when solving the problem. Investigations [16,[18][19][20][21] of the occurrence of domains with disrupted structure of the material show that during the initial stage the pre-fracture zones have the form of a narrow elongated layer, and then, when the load is increased, a secondary system of zones suddenly appears, and these zones contain the material with partially ruptured bonds.…”

Cracking in a circular disk under mixed boundary conditions

“…Investigations [9][10][11] of initiation of zones with disturbed structure of the material show that at the initial stage of loading, the plastic flow (prefracture) zones are a narrow stretched layer, and then due to the growth of the load, there appears the secondary system of plastic flow zones containing a material with partially disturbed bonds. As the indicated zones (interlayers) are small in comparison with remaining elastic part of the disk, we can remove them mentally having changed with sections whose surfaces interact by some law corresponding to the action of the removed material.…”

Review on Creep Analysis and Solved Problems

“…Till now, numerous constitutive models have been presented to address viscoplastic, plasticity and the creep behaviors of materials [89][90][91][92][93][94][95][96][97][98][99][100][101][102][103][104][105][106][107]. Also, the time-dependent creep deformation of a metallic component under applied stress and temperature was studied by many researchers [92,99,104,105].…”