β Scribed by J.H. Holbrook; R.W. Rohde; J.C. Swearengen
No coin nor oath required. For personal study only.
The question of plastic strain rate continuity during instantaneous changes in total strain rate is addressed, This issue has important implications for models of plastic deformation kinetics. The particular case of a total strain rate change represented by the start of a stress relaxation test is considered in detail. It is concluded from a theoretical analysis that extreme experimental precision is required to detect plastic strain rate continuity at the start of stress relaxation. It is shown that the degree of experimental precision required depends on both material and experimental variables. Supporting experiments confirm plastic strain rate continuity in aluminum, iron, and 304%.
π SIMILAR VOLUMES
## A&ract -Stress rate change experiments have been used to assess the contribution of mechanical activation of dislocation glide to the inelastic deformation of 304 stainless steel. These experiments were conducted in a servohydraulic testing machine by loading at stress rates from 5 to 40 MPals