Verification of code : Solution and therectical values dont match -- CFD Online Discussion Forums

December 22, 2010, 06:54	Verification of code : Solution and therectical values dont match	#1
vishnukmd7 New Member Vishnu Prasad Join Date: Sep 2010 Location: Goa Posts: 19 Rep Power: 15	The problem is a I beam (HE 120A Beam) clamped at both ends ( no freedom of displacement or rotation).Length is 3m.The code I wrote is the following : /PREP7 MP,EX,1,2e11 MP,NUXY,1,0.3 ET,1,188,,,,2 SECTYPE,2,BEAM,I,IBEAM SECDATA,120e-3,120e-3,114e-3,8e-3,8e-3,5e-3 SECNUM,2 K,,0,0 K,,3,0 L,1,2 KESIZE,ALL,0.1 LMESH,ALL FINISH /SOLU NSEL,S,LOC,X,1 F,12,FY,-30e3 NSEL,S,LOC,X,0 D,1,all,0 NSEL,S,LOC,X,3 D,2,all,0 nsel,all ANTYPE,STATIC,NEW SOLVE I'm getting HUGE differences between the analysis value and theoretical value.( I used the Euler Bernoulli method to solve but even then the answers should be close by at least ). Why is this happening? Is something wrong with the code? Please help.

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