A new method for determining limit strains of materials that show post-uniform elongation behavior

TÜRKÖZ M., HALKACI H. S. , Yigit O., DİLMEÇ M., Ozturk F.

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol.228, no.3, pp.450-457, 2014 (Journal Indexed in SCI Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 228 Issue: 3
  • Publication Date: 2014
  • Doi Number: 10.1177/0954405413501812
  • Title of Journal : Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
  • Page Numbers: pp.450-457

Abstract

In this study, a new method is proposed to determine limit strains at the onset of localized necking for ductile materials that show post-uniform elongations. The new method is first applied for AA 5754-O using the ISO 12004-2 forming limit diagram determination standard. The method is also applied for ductile materials of 7114 steel, 304 stainless steel, and CuZn37 brass and finally for AA 2024-T4 having brittle fracture behavior. The results indicate that the new proposed method is quite successful, easy, and accurate for ductile materials that show post-uniform elongations.