Linear Buckling and shell91
Linear Buckling and shell91
(OP)
Hi, I'm doing an linear buckling analysis on a composite turbine blade.
Now the certification organisation states that the use of the layered shell91 element, does not result in reliable values.
They advise the use of shell181 in order to obtain reliable results.
Now am I aware of the need to use surf154 element in combination with shell91 for good results, but only when a pressure load is applied and I'm using a nodel force as loading.
Can anybody advise
Now the certification organisation states that the use of the layered shell91 element, does not result in reliable values.
They advise the use of shell181 in order to obtain reliable results.
Now am I aware of the need to use surf154 element in combination with shell91 for good results, but only when a pressure load is applied and I'm using a nodel force as loading.
Can anybody advise





RE: Linear Buckling and shell91
Why?
> They advise the use of shell181 in order to obtain reliable results.
Why?
------------
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RE: Linear Buckling and shell91
But I hoped that some-one could tell me, if doing a linear buckling analysis with shell91 is inreliable or not.
RE: Linear Buckling and shell91
------------
See FAQ569-1083 for details on how to make best use of Eng-Tips.com