Related Experiment Video
Updated: Jan 25, 2026

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
Published on: December 13, 2016
Formability Limits, Fractography and Fracture Toughness in Sheet Metal Forming
João P Magrinho1, Maria Beatriz Silva2, Luís Reis3
1IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal. joao.magrinho@tecnico.ulisboa.pt.
Abstract:
This paper is focused on the utilisation of double edge notched tension, staggered and shear tests to determine fracture toughness and the formability limits by fracture in principal strain space. The experiments were performed in test specimens with different geometries and ligament angles, and the influence of strain hardening was taken into consideration by selecting two materials (aluminium AA1050-H111 and pure copper), with very different strain hardening exponents. Results are plotted in principal strain space, and the discussion is focused on the link between formability limits, fracture toughness and macroscopic fractography characteristics of the specimens that fail by mode I, mode II or mixed-mode.
More Related Videos
07:40A Novel Biaxial Testing Apparatus for the Determination of Forming Limit under Hot Stamping Conditions
Published on: April 4, 2017
07:26Metal-Limited Growth of Neisseria gonorrhoeae for Characterization of Metal-Responsive Genes and Metal Acquisition from Host Ligands
Published on: March 4, 2020
Related Concept Videos
Toughness and Hardness of Aggregate
Bonding in Metals
Limiting Reactant
Alkali Metals
Table 1: Properties of the alkali metals
The Number e as a Limit
Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...