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angle-ply laminated plate model
Sat, 2007-11-10 05:21 - kmza
I am trying to built a model for a laminated angle-plied plate, which has different fibres orientation in each plate. But I have a problem in materilas property as the Abaqus told me after analysis andmake error. The error is that the properties of the model in not assigned well. I have assign them as shell composite and make the local co-ordinate orientation.
I have tried to use homogeneous material and enter the Engineering contants in all directions and by just changing the local axis orintation, it works. But I don't know if this is right or not.
Need advice plz
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Ply orientations...
R. Chennamsetti, Scientist, R&D Engineers, India
In commercial softwares, ply orientations of a laminate are defined as following...
[1] Define a local coordinate system (csys), where x - axis is along zero direction and z - axis is out-of-plane.
[2] This x - axis (zero ply) is your orientation. Take this as a reference, orient the other plies with respect to this. Anticlockwise is taken +ve and clockwise -ve..
For example +45 ply => Orient fiber direction is at +45 anticlockwise wrt x - axis (zero plies).
[3] You need to define orientation of each ply and its corresponding thickness and material properties in zero direction (x-axis)
If UD lamina properties are known, one can calculate the properties of any other lamina which has non-zero orientation using transformation technique.