Autotuning of Isotropic Hardening Constitutive Models on Real Steel Buckling Data with Finite Element Based Multistart Global Optimisation on Parallel Computers

Figure 5

Buckled shapes of the bar with initial imperfection of 0.14 mm (see Table 1), from Case , showing, on the left, the bar with plastic properties of : MPa, MPa, and , buckled in the 1st mode, , and, on the right, the bar with plastic properties of 2nd evaluation of : MPa,  MPa, and , buckled in a higher mode, . See Figure 6 and Table 2 for more details. The contour plots show Mises stress in MPa.