Use load step approach to solve cantilever beam for following loadsTo simulate self weight100 lb load at one end.100 lb load at the middle100 lb load at the middle and at the end.

fini/clear/filnam,cantilever_ls/prep7/title,cantilever beam 100lbN,1,0,0,0N,2,50,0,0N,3,100,0,0C*** DEFINE ELEMENT TYPEET,1,BEAM3C***CREATE PARAMETERSht=6Br=4Ar=ht*BrMI=Br*ht**3/12c***create material propertiesmp,ex,1,30e6!!! psimp,nuxy,1,0.3!!!poisson's ratiomp,dens,1,0.00073!!lb.s*s/in*in*in*inc***create real constantR,1,Ar,MI,hte,1,2e,2,3c***apply disrpt. boundary cond.D,1,all,0c***apply forcesave,modelc***apply forceF,3,fy,-100/title,load at endlswrite,1fdele,all,allf,2,fy,-100/title,load at middlelswrite,2fdele,all,allacel,0,32*12,0/title,self weightlswrite,3acel,0,0,0 !!nullify acel effectf,3,fy,-100f,2,fy,-100/title,load at end and middlelswrite,4/solulssolve,1,4,1/post1set,1 understandInput stream

Lswrite,1

Lswrite,2

Effect of acel commandRed arrow at global indicating acel in +y ie dir of gravity

Acel,0,0,0 will nullify effect of acel command.

Lswrite,4

Solve load steps by usingLssolve,1,4,1

Minimum load step no, maximum load step number, increment

Post processing to see the resultsSet,1 will retrieve result set number 1 created during solving.Set,2 will retrieve result set number 2 created during solving.Set,3will retrieve result set number 3 created during solving.Set,4 will retrieve result set number 4 created during solving.Use prrfor command to check applied loads were correct.Self weight of the beam will reflect in the load case of self weight.What is the self weight?

Retrieve results of load step 1 by set,1Use pldisp to see deformation plot

Second load step displacement plot

Second load step reaction force

Load step 3 displacement plot

Prrfor

Self weight reflected in reaction force.

Load step 4 displacement plot

Load step4 reaction forces.Are they logical?