Re: Vuhard

 The text I have written about the error I am getting when using V-uhard was not displayed in the way I would like to. So, I have attached a copy of my little script (.f), the inp. file and the error file that I am getting. I would appreciate if someone could give me some help or suggestions. Thanks...  
    On Wednesday, March 13, 2019, 3:59:02 AM PDT, Wendel Melo [email protected] [Abaqus] <[email protected]> wrote:  
 
     
Hi everybody, 
My name is Wendel, and I am a master student at University of British Columbia. It is a pleasure to be part of this group; I thank you all for having accepted me. I just started using Vuhard for the plasticity part of my simulation and I have followed Abaqus User Subroutines Manual to write my little code, please see it below:
subroutine vuhard(C Read only -     *     nblock,      *     jElem, kIntPt, kLayer, kSecPt,      *     lAnneal, stepTime, totalTime, dt, cmname,     *     nstatev, nfieldv, nprops,      *     props, tempOld, tempNew, fieldOld, fieldNew,     *     stateOld,     *     eqps, eqpsRate,C Write only -     *     yield, dyieldDtemp, dyieldDeqps,     *     stateNew )C      include 'vaba_param_dp.inc'C      dimension props(nprops), tempOld(nblock), tempNew(nblock),     1   fieldOld(nblock,nfieldv), fieldNew(nblock,nfieldv),     2   stateOld(nblock,nstatev), eqps(nblock), eqpsRate(nblock),     3   yield(nblock), dyieldDtemp(nblock), dyieldDeqps(nblock,2),     4   stateNew(nblock,nstatev), jElem(nblock)CC props(1)=KC Props(2)=nC Props(3)=m      character*80 cmnameC      do km = 1,nblock        yield(km)= props(1)*(eqps(km)**props(2))*(eqpsRate(km)**props(3))        dyieldDeqps(km,1)=props(1)*props(2)*(eqps(km)**(props(2)-1))*(eqpsRate(km)**props(3))     dyieldDeqps(km,2)=props(1)*props(3)*(eqps(km)**props(2))*(eqpsRate(km)**(props(3)-1))   end doC      return      end
As you can see I am using the Ludwick equation for my working hardening behavior and I have set the the parameters K,n and m under the Plastic part (hardening=user). However, I am getting an error like this:

Has anyone else got this error before? Can you give me some advice/ help? 
Thanks in advance,

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  ----------

	 subroutine vuhard(
C Read only -
     *     nblock, 
     *     jElem, kIntPt, kLayer, kSecPt, 
     *     lAnneal, stepTime, totalTime, dt, cmname,
     *     nstatev, nfieldv, nprops, 
     *     props, tempOld, tempNew, fieldOld, fieldNew,
     *     stateOld,
     *     eqps, eqpsRate,
C Write only -
     *     yield, dyieldDtemp, dyieldDeqps,
     *     stateNew )

      include 'vaba_param.inc'

      dimension props(nprops), tempOld(nblock), tempNew(nblock),
     1   fieldOld(nblock,nfieldv), fieldNew(nblock,nfieldv),
     2   stateOld(nblock,nstatev), eqps(nblock), eqpsRate(nblock),
     3   yield(nblock), dyieldDtemp(nblock), dyieldDeqps(nblock,2),
     4   stateNew(nblock,nstatev), jElem(nblock)
C
C	props(1)=K
C	props(2)=n
C	props(3)=m
C	props(4)=Sigma Yield
C	props(5)=Elastic strain
      character*80 cmname
C
      do km = 1,nblock
        yield(km)= props(4)+props(1)*((props(5)+eqps(km))**props(2))*(eqpsRate(km)**props(3))
        dyieldDeqps(km,1)=props(1)*props(2)*((props(5)+eqps(km))**(props(2)-1))*(eqpsRate(km)**props(3))
	    dyieldDeqps(km,2)=props(1)*props(3)*((props(5)+eqps(km))**props(2))*(eqpsRate(km)**(props(3)-1))
	  end do
C
      return
      end

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