strain hardening

Wire drawing operation is performed on a perfectly plastic metal without any strain hardening. Assuming no friction and no redundant work, the maximum possible percentage reduction...

Ignoring the small elastic region, the true stress (𝜎) – true strain (𝜀) variation of a material beyond yielding follows the equation 𝜎 = 400𝜀 0.3 MPa. The engineering ultimate...

Consider the stress-strain curve for an ideal elastic-plastic strain hardening metal as shown in the figure. The metal was loaded in uniaxial tension starting from O. Upon loading,...

The maximum reduction in cross-sectional area per pass ($R$) of a cold wire drawing process is $R=1-e^{-(n+1)}$, where $n$ represents the strain hardening coefficient. For the case...

The true stress (σ) - true strain (ε) diagram of a strain hardening material is shown in figure. First, there is loading up to point A, i.e., up to stress of 500 MPa and strain of...

Cutting tool is much harder than the work piece. Yet the tool wears out during the tool-work interaction, because

Ductility of material with work hardening

A test specimen is stressed slightly beyond the yield point and then unloaded. Its yield strength