P. Tuğcu

TL;DR: In this paper, the authors investigated the anisotropic behavior of some rolled aluminum alloys using the phenomenological approach via some of the recently proposed 3D yield functions and compared the results with previously reported experimental measurements.

TL;DR: In this article, the effect of pre-straining on material anisotropy was investigated by comparing the differences in the flow stress vs. orientation curves between the as-received and prestrained sheets.

TL;DR: In this article, the implementation of anisotropic yield functions into finite element investigations of orthotropic sheets with planar anisotropy is discussed within a plane-stress context.

TL;DR: In this article, a rectangular block subjected to constrained simple shearing deformations is considered and the ability of a constitutive model to predict negligible normal stress components, both in and normal to the plane of shearing, is adopted as a measure to test the accuracy of the yield functions employed.

TL;DR: In this paper, a finite-strain deformation of a membrane under hydrostatic pressure is investigated using a rate-dependent polycrystal plasticity formulation based on Taylor assumptions, where each material point in the sheet is considered to be a polycrystalline aggregate of a large number of grains.