subroutine fric(lm,tau,ddtddg,ddtddp,dslip,sed,spd, 1 ddtddt,pnewdt,statev,dgam,taulm,press,dpress,ddpddh, 2 slip,kstep,kinc,time,dtime,noel,ciname,secname, 3 mainname,npt,node,npatch,coords,rcoord,drot,temp, 4 predef,nfdir,mcrd,npred,nstatv,chrlngth,props,nprops) c include 'aba_param.inc' c character*80 ciname,secname,mainname dimension tau(nfdir),ddtddg(nfdir,nfdir),ddtddp(nfdir), 1 dslip(nfdir),ddtddt(nfdir,2),statev(*), 2 dgam(nfdir),taulm(nfdir),slip(nfdir),time(2), 3 coords(mcrd),rcoord(mcrd),drot(2,2),temp(2), 4 predef(2,*),props(nprops) c parameter(zero=0.0D0) c if (lm .eq. 2) return c c viscosity, k c xk=props(1) c lm=0 c dg/dtime= xk*tau ddtddg(1,1)=1.0/(xk*dtime) ddtddg(2,2)=1.0/(xk*dtime) ddtddg(1,2)=zero ddtddg(2,1)=zero tau(1)=dgam(1)/(xk*dtime) tau(2)=dgam(2)/(xk*dtime) dslip(1)=dgam(1) dslip(2)=dgam(2) statev(1) = dslip(1) statev(2) = dslip(2) return end