For a steel sheet with k = 500 MPa, ε0= 0.05, n = 0.30, the true strain at necking would be ___________ if tensile necking begins at the maximum load. Choose the best from the choices. (a) 0.25 (b) 0.30 (c) 0.2 (d) 0.15

Select the correct limit strain value (ε1*, ε2*) in plane strain from the choices when a steel sheet reaches instability as per maximum tension line, ε1* + ε2* = 0.25. (0, 0.25) (0.25, 0) (-0.25, 0.5) (0.5, 0)

What is the uniform strain of a sheet material having imperfection ratio of −0.005 following σ = 200ε0.25 during hardening? (take K in MPa)

The load for the beam in the image (b) below is X=14.1 KN. Image (a) represents the cross-section of the beam. Determine the maximum tensile bending stress in the beam in MPa.

What is the strain at maximum load during tensile test of the gauge region of a steel strip that follows hardening law, σ = K (ε0+ ε)0.22? 0.22-ε0ε0 −0.22 0.22 0.11

A steel sheet with inhomogeneity factor of f0 = 0.995 is deforming in balanced biaxial tension with σ1a and σ2a as principal stresses in the uniform region ‘A’. What is the major principal stress σ1b in the groove ‘B’ at a small effective plastic strain of 0.05 if the material follows σ̅σ̅= 600 (0.004 +ε̅ε̅  )0.2 MPa hardening model. Find the value in MPa.