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Thermoset phenolic with reinforced cotton linen

Thermoset phenolic with reinforced cotton linen

Thermoset phenolic with reinforced cotton linen

(OP)
Currently I am needing mechanical properties of a 2-ply laminate thermoset phenolic resin reinforced with cotton linen (long fibers).  The bottom ply is 90 deg, the top ply is 45 deg with respect to the bottom creating a quasi-isotropic material fiber structure pattern.  First, is it suitable to assume the material to be isotropic?  I would like to model the material in Ansys; but the properties are needed for analysis.  In order to get true stress, strain, Young's Modulous, and Poisson's Ratio, would I need to do a dogbone tensile test with strain gages?
I've looked in the www.matweb for info and could not find anything useful.  Where to look?, How to model the material?

RE: Thermoset phenolic with reinforced cotton linen

We had a similar task some years ago and had to go the dog bone test route.

You may  find some relevant maths in a book "Appplication of Fracture Mechanics" by Barsom and Rolfe, published by Prentice Hall.

Good luck

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