Analytical and numerical analyses of local loading forming process of T-shape component by using Coulomb, shear and hybrid friction models

• Predicted results by shear friction model and hybrid friction model are almost the same.
• Rib height, load, stress and strain under Coulomb friction model are all larger.
• Difference of rib height increases at first and then decreases with increasing loading width.

The Coulomb friction model, shear friction model and hybrid friction model were employed to analyze the local loading forming process by using slab method (SM) and finite element method (FEM). The results indicated that predicted results by shear friction model and hybrid friction model are almost the same, but there exists a notable difference between Coulomb friction and the other two friction models. The rib cavity will be filled better under Coulomb friction model, and difference of rib height after forming process between Coulomb friction model and shear friction model increases at first and then decreases with the increase in width of local loading.

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