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Material characterization and finite element simulations of aluminum alloy sheets during non-isothermal forming process
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The article was published on 2016-01-01 and is currently open access. It has received 4 citations till now. The article focuses on the topics: Stamping & Forming processes.read more
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Patent
Quick plastic forming of aluminum alloy sheet metal
TL;DR: In this article, a quick plastic forming method of aluminum alloy sheet metal is provided to enable the practical production of robust automobile body panels and the like of complex shape and highly strained regions.
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A Modified Peric Model for Al-Mg Alloy Sheet with Rate-Independent Initial Yield Stress at Warm Temperatures
TL;DR: In this article, a modified Peric model is proposed to capture rate-independent initial yield stress via introducing plastic strain to multiply the strain rate, for eliminating the effect of strain rate when the plastic strain is zero.
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Warm forming simulations of Al-Mg alloy sheet using a viscoplastic model and advanced yield functions
TL;DR: In this article, a viscoplastic constitutive model with an advanced non-quadratic yield function was proposed for the simulation of AA5182-O alloy in warm forming conditions.
Journal ArticleDOI
A Modified Peric Model for Al-Mg Alloy Sheet with Rate-Independent Initial Yield Stress at Warm Temperatures
TL;DR: In this paper, a modified Peric model is proposed to capture rate-independent initial yield stress via introducing plastic strain to multiply the strain rate, for eliminating the effect of strain rate when the plastic strain is zero.
References
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Journal ArticleDOI
A theory of the yielding and plastic flow of anisotropic metals
TL;DR: In this article, a theory is suggested which describes the yielding and plastic flow of an anisotropic metal on a macroscopic scale and associated relations are then found between the stress and strain-increment tensors.
Journal ArticleDOI
Determination of displacements using an improved digital correlation method
TL;DR: An improved digital correlation method is presented for obtaining the full-field in-plane deformations of an object by numerically correlating a selected subset from the digitized intensity pattern of the undeformed object.
Journal ArticleDOI
Digital Imaging Techniques In Experimental Stress Analysis
W. H. Peters,W. F. Ranson +1 more
TL;DR: In this paper, the surface displacement components in laser speckle metrology were measured using a digital image scanner interfaced to a computer. Butt et al. used a boundary integral equation method to calculate surface traction in the contour.
Journal ArticleDOI
A review of some plasticity and viscoplasticity constitutive theories
TL;DR: In this paper, the main ingredients and assumptions of developing macroscopic inelastic constitutive equations, mainly for metals and low strain cyclic conditions, have been discussed, with some comparisons with the previous ones, including more recent developments that offer potential new capabilities.
Journal ArticleDOI
Plane stress yield function for aluminum alloy sheets—part 1: theory
Frédéric Barlat,Frédéric Barlat,J.C. Brem,Jeong W. Yoon,Jeong W. Yoon,Kwansoo Chung,Re Dick,D.J. Lege,Farhang Pourboghrat,Shi-Hoon Choi,E. Chu +10 more
TL;DR: In this article, a plane stress yield function that well describes the anisotropic behavior of sheet metals, in particular, aluminum alloy sheets, was proposed, which was introduced in the formulation using two linear transformations on the Cauchy stress tensor.