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Hello everybody, as part of my thesis I have to find typical values of fiber volume in GFRP composites for marine applications such as boats, ships etc. Until now, I have found some values approximately close to Vf=50% but not from sources that I can include into my thesis. Does anybody have any...

I found the answer to my question. One can find the stresses through the thickness by choosing the layer under investigation and the surface under investigation. To elaborate on this, one can give a certain lay-up through Preprocessor>Sections>Shell>Add/Edit , f.e. [0 45 90 -45]. Then, by...

Hello everybody, I have a simple question regarding the stresses through the thickness at a composite laminate. I have created a simple rectangular area with shell181 elements(KEYOPT(8)=1) and I have given a lay-up sequence through Preprocessor>Sections>Shell>Add/Edit. Then, I constrained one...

I have modelled a heavily welded structure in LS-DYNA and I am using implicit method to solve it as the problem is static. Which is the correct command (keyword) in LS-DYNA in order to model initial stresses such as the residuals from the welding procedure? I am using the keyword...