Microstructural Evolution Based on Fundamental Interfacial Properties

Rollett, Anthony D.; Srolovitz, David J.

doi:10.2172/883040

Cited by 1 publication

(1 citation statement)

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“…It is well known that the macroscopic anisotropy is significantly affected by the crystallographic texture 1,2 . It is well known that the macroscopic anisotropy is significantly affected by the crystallographic texture 1,2 .…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation on Sheet Metal Forming with Rate-independent Polycrystalline Plasticity FEM

Zhang¹,

Li²,

Peng³

2004

AIP Conference Proceedings

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FE Robustness: comparing sheet metal forming variation and finite element models AIP Conf.Abstract. It has long been found that, during deformation process, the crystal orientations would gradually rotate around some ideal orientations, and then would affect the later deformation properties of sheet metal. So it is very important to introduce texture model into metal forming processes. In this paper, a rate-independent polycrystalline plasticity model is developed and introduced into dynamic explicit element method. Metal flow is assumed to occur by crystallographic slip on given slip systems within each crystal. Every integration point represents a single crystal. Then cup drawing of sheet metal is studied using crystalline plasticity finite element analysis. For the rolled aluminum sheet, which contains strong {001}<110> texture, earing is formed at 45º direction after cup drawing. For the annealing aluminum sheet, due to the balance between two main textures, the flange earing tendency is not obvious. And for the soft steel sheet with a faintish orientation distribution, the flange earing tendency is not obvious, too.

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Section: Introductionmentioning

confidence: 99%