Self-consistent model for isotropic perfectly plastic two-phase materials

By Marat I. Latypov1, Surya R. Kalidindi2

1. Georgia Tech Lorraine 2. Georgia Institute of Technology

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Models

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Abstract

MATLAB implementation of Stringfellow-Parks self-consistent model for isotropic perfectly plastic two-phase materials.

The model predicts effective yield strength and strain rates partitioned into each phase. 

Usage

[ check_1,  x1,  x2,  sbar,  check_2] = isosc( f2, s1, s2, m  )

where 
- f2 is vol fraction of the hard phase
- s1 and s2 are yield strengths of the soft and hard phases
- m is strain rate sensitivity of the phases (assumed the same for both phases)

output
* x1, x2 - strain rate ratio in soft and hard phases
* sbar - effective yield strength of the composite microstructure
* first and last output vars are some checks and can be ignored

Original paper by Stringfellow and Parks

Richard G. Stringfellow, David M. Parks, A self-consistent model of isotropic viscoplastic behavior in multiphase materials, International Journal of Plasticity, 7 (1991) 529-547.

 

References

Richard G. Stringfellow, David M. Parks, A self-consistent model of isotropic viscoplastic behavior in multiphase materials, International Journal of Plasticity, 7 (1991) 529-547.  

Publications

Marat I. Latypov, Surya R. Kalidindi, Data-driven reduced order models for effective yield strength and partitioning of strain in multiphase materials

Cite this work

Researchers should cite this work as follows:

  • Marat I. Latypov; Surya R. Kalidindi (2016), "Self-consistent model for isotropic perfectly plastic two-phase materials," https://matin.gatech.edu/resources/90.

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