ri3trio's blog

Hi all,

I'm an abaqus subroutine UEL user.

I recently got an existed UEL fortrain file from advisor professor, but had an following error message when I ran the code.

UEL.obj : error LNK2019: unresolved external symbol dpotrf referenced in function matinv_lapack

UEL.obj : error LNK2019: unresolved external symbol dpotri referenced in function matinv_lapack

The code has "call dpotrf('U',n,A_INV,n,i)" and "call dpotri('U',n,A_INV,n,i)" in function matinv_lapack, so I think I need to install lapack to resolve this problem.

Hello. 

I'm doing piezoelectric analysis using abaqus CAE v6.12.

Specifically, what I'm doing now is to make the bimorph piezoelectric harvester model using Abaqus CAE

and to validate my model.

My FE model is made based on the model developed by A Erturk and D J Inman in their paper,

'An experimentally validated bimorph cantilever model for piezoelectric energy harvesting from base excitations'

They presented the analytical solution for voltage output and experimental validation is also presented in this paper.