> Hi,
> 

Dear Daniel,

> I wonder if there are any general guidelines to which method to use for imposing
> constraints in a dynamic structural analysis?
> Penelty method? Lagrange?
> 

Either may cause problem if you use explicit method. Fully implicit 
method is more tolerant.

> Thanks,
> //Daniel
> 

regards,

Andrew

> 
--
Be an optimist on strategy but a pessimist on tactics.
- Chairman Mao 

Dr. Andrew H.C. Chan: [log in to unmask] or [log in to unmask]
Reader, School of Civil Engrg, Univ of Birmingham B15 2TT UK
Tel: +44(0)121 414 5100 Fax: +44(0)121 414 3675 Mobile: 0777 324 3055
http://www.bham.ac.uk/CivEng/pg/soils/chan/chan01.htm


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