The Method to Determine Material Constants in Ductile Fracture Criterion

Abstract:

In the metal plastic forming process, ductile fracture is an important factor influencing the forming properties of materials, and the ductile fracture criterion can effectively predict the moment and location when the material fracture. When using the ductile fracture criterion predicts the fracture of materials, the material constants expressed in integral form is an important index that affect the prediction accuracy. At present, the method to determine the material constants in the ductile fracture criterion is mostly combined with basic test. Therefore, the method to determine the material constants in ductile fracture criterion is introduced in this paper. These methods are divided into numerical calculation methods, finite element simulation method and the M-K theory model method.

• Periodical: Solid State Phenomena (Volume 279)
• Pages: 85-91
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.279.85
• Online since: August 2018
• Authors: Jun Wei, Lian Fa Yang*, Jian Guo
• Keywords: Basic Test, Ductile Fracture Criterion, Material Constants

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