What is the value of a in JKR model

satri
satri Altair Community Member
in Community Q&A

Hey your documentation says

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What is the value of a that i shoudl consider for JKR V2 model. you say its a place holder and have used it in equation 1 and 2

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  • satri
    satri Altair Community Member

    also what is the difference between alpha_f and alpha?

  • satri
    satri Altair Community Member

    also why do you have same names for upper case gamma and lower case gamma12?

  • satri
    satri Altair Community Member

    Please tell me if this is how EDEM computes the value of lowercase_a to be used for equation 1.

    it equates equation number 2 to normal contact overlap which is given by lowercase_delta_n and then it solves for a numerically.

    Once this is solved, the value of lowercase_a is used in equation 1.

    Please tell me if this is how it works in the background?

    I still want to know what the difference is between alpha_f and alpha.

  • satri
    satri Altair Community Member

    please tell me if this is how altair calculates lowercase_a in the background

    → equates the alpha value from equation 2 to lowercase_delta_n (normal contact overlap). Solve the equation 2 numerically to get the value of lowercase_a. Use this value in equation 1 to determine the value of Fn.

    Please let me know if this is how altair evaluates the value of lowercase_a?

    also i still want to know what is the difference between alpha_f and alpha?

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