Practical application of HTMT in stamping of blade parts

Plastic deformation of glassy polymethylene: Computer-aided molecular-dynamic simulation

“…Against the background of articulate concepts on the plasticity of low molecular mass crystals [11,16], the concept of inelastic deformation in disordered sol ids is far from perfect. Earlier ideas on the mechanism of plastic flow in glasses date back to the physics of flow of highly viscous low molecular mass liquids [17].…”

“…The specificity of retarded elasticity can be formulated as follows: During unloading in the region of retarded elasticity, material transforms into the state with ε res = 0; i.e., formally, its behavior is elas tic. However, in the loading-unloading cycle, the σ-ε diagram shows a hysteresis loop, which is indicative of strain energy dissipation, and relaxation of retarded elasticity proceeds at a slower rate than that of elastic relaxation [4,6,11,16,59]. This stress-strain behav ior of solids is classified as retarded elasticity or anelas tic behavior [6,16,45,52].…”

“…However, in the loading-unloading cycle, the σ-ε diagram shows a hysteresis loop, which is indicative of strain energy dissipation, and relaxation of retarded elasticity proceeds at a slower rate than that of elastic relaxation [4,6,11,16,59]. This stress-strain behav ior of solids is classified as retarded elasticity or anelas tic behavior [6,16,45,52]. In the post Hookean region, ΔU/W should decrease because, owing to internal friction, dissipa tion of W in the course of deformation increases.…”