Author
Thomas B. Stoughton
Other affiliations: Deakin University
Bio: Thomas B. Stoughton is an academic researcher from General Motors. The author has contributed to research in topics: Necking & Hardening (metallurgy). The author has an hindex of 22, co-authored 72 publications receiving 2877 citations. Previous affiliations of Thomas B. Stoughton include Deakin University.
Topics: Necking, Hardening (metallurgy), Plasticity, Yield surface, Formability
Papers published on a yearly basis
Papers
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TL;DR: In this article, it is shown that the forming limit for both proportional loading and non-proportional loading can be explained from a single criterion which is based on the state of stress rather than the state-of-stress.
397 citations
TL;DR: In this article, a path-independent stress-based model for sheet metal forming analysis is proposed. But the model is not suitable for the analysis of complex forming processes, such as restrikes, flanging operations, hydroforming, and first draw dies with deep pockets or embossments.
274 citations
TL;DR: In this paper, an improved model of material behavior is proposed that shows good agreement with experimental data for both yield and plastic strain ratios in uniaxial, equi-biaxial and plane-strain tension under proportional loading for steel, aluminum and possibly other alloys.
219 citations
TL;DR: In this paper, a non-associated flow rule (NAFR) model is proposed to improve the accuracy of springback, tearing, and earing predictions for aluminum and stainless steel alloys.
214 citations
TL;DR: In this paper, a non-associated flow rule based on a pressure sensitive yield criterion with isotropic hardening is proposed, which is consistent with the Spitzig and Richmond data and analysis.
191 citations
Cited by
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TL;DR: In this paper, the texture properties of AZ31 Mg sheet were measured under different loadings along rolling direction (RD), 45° to rolling direction, 90° to roll direction (TD), and normal to the sheet (ND) to large strains.
383 citations
TL;DR: In this paper, a phenomenological fracture initiation model for metals is developed for predicting ductile fracture in industrial practice based on the assumption that the onset of fracture is imminent with the formation of a primary or secondary band of localization.
369 citations
TL;DR: In this paper, the authors proposed a modified yield function for an anisotropic aluminium alloy sheet material to improve the flexibility of the yield function with respect to the initial plastic anisotropy of the sheet.
369 citations
TL;DR: In this article, the authors predicted the ductile failure of dual phase steels in the form of plastic strain localization resulting from the incompatible deformation between the harder martensite phase and the softer ferrite matrix.
332 citations
TL;DR: In this article, a macroscopic fracture criterion is proposed based on micro-mechanism analysis of nucleation, growth and shear coalescence of voids from experimental observation of fracture surfaces.
299 citations