Abstract: In sequential of multistep forming operations, the material which has already undergone permanent deformation is expected to behave differently in each stage of deformation than the as-received ...

Abstract: In the present investigation, we have studied the influence of sheet thickness on the limiting strain, i.e., forming limit, of a mild steel by punch stretching experiments. Our results show ...

Abstract: The development of a one-dimensional finite strain elasto-plastic shell model appropriate for use in modelling straight drawbeads is outlined. Numerical results obtained using a finite element ...

Abstract: Yttria and alumina have been used with particular success, either singly or in combination, as densification aids for hot pressing and sintering of silicon nitride. To obtain desirable mechanical, ...

Abstract: This paper presents a set of experimental results concerning the evolution of yield loci for anisotropic materials in the course of finite shear deformation history. Thin walled tubes of SAE ...

Abstract: Many metal forming operations, such as rolling and tube drawing, are known to induce orthotropic anisotropy. The change of axes of orthotropy with subsequent deformation has been studied in ...