Plastic behavior and stretchability of sheet metals. Part I: A yield function for orthotropic sheets under plane stress conditions

✍ Scribed by F. Barlat; K. Lian

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 737 KB
• Volume: 5
• Category: Article
• ISSN: 0749-6419
• DOI: 10.1016/0749-6419(89)90019-3

✦ Synopsis

A yield function that describes the behavior of orthotropic sheet metals exhibiting planar anisotropy and subjected to plane stress conditions is proposed. It is shown to give a reasonable approximation to plastic potentials calculated with the Taylor/Bishop and Hill theory of polycrystalline plasticity for plane stress states. Therefore, this formulation should be particularly useful to study, at a low degree of complexity, the influence of polycrystalline textures on the forming performances of metal sheets. In part If, this yield function will be used to study the influence of the yield surface shape on failure behavior of sheet metals.