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Johanson Cook parameters

Submitted by monzer on

Hi, Every one i am student doing my masters and i have got the
experimental result from tensile test for different temperature stress vs strain and orthogonal cut .
but i am going to apply the Johnson cook material model. please can any
one give me how to find A,B,C,N and M please i have read it found from
the experimental data i have got but i didn't know how to find please
help me out. please attach me the steps in detial with my emial: bogale.sintayehu [at] gmail.com (monzerdaoud[at]hotmail[dot]com)

any sort of help is appreciated

thank you

I would like to add some explanations. I have experimental result from orthogonal cut have been carried out for different cutting conditions. theses experiments provide an evaluation of the physical quantities:  the deformation, the deormation rate, the temperature and the stress expressed on the main shear plane. And I want to use a least square approximation technique to determine the material constants in Johnson Cook law: A, B, n, C, m. So please can any one give me how to find these constants.

Thu, 01/10/2013 - 14:05 Permalink

I would like to add some explanations. I have experimental result from orthogonal cut have been carried out for different cutting conditions. theses experiments provide an evaluation of the physical quantities:  the deformation, the deormation rate, the temperature and the stress expressed on the main shear plane. And I want to use a least square approximation technique to determine the material constants in Johnson Cook law: A, B, n, C, m. So please can any one give me how to find these constants.

Thu, 01/10/2013 - 14:05 Permalink