Composite Materials

Recent Answers

2012-02-02 Composite Materials - Stress in principal co-ordinates:

ANSYS: How to display in lamina coordinates as opposed to global.     Using RSYS, SOLU  (in menus: Main Menu>General Postproc>Options for Outp)    From ANSYS help:      RSYS, KCN    Activates a coordinate

2012-02-02 Composite Materials - Biocomposite:

Hi     Typically the formula used is fibre volume fractin - how much fibre is in a finished composite item.    Weight fraction is much easier to use, from both a fabrication and sample-testing persepctive

2012-01-30 Composite Materials - ANSYS MODELLING:

In most cases it is not a good idea to use solid elements to model a thin walled beam (such as an I beam). Better use shell elements. Even better is don't use FEA at all. Beam theory for composite thin

2012-01-24 Composite Materials - design of zero CTE composite panels:

It is true. Depending of the fiber volume, you can make it zero or negative in one direction for one lamina. Using a laminate you can make it very low, but unlikely zero in all directions.      You can

2012-01-20 Composite Materials - composite materials:

A randomly oriented lamina needs only 2 moduli, E and Poisson's ratio PR, to describe its behavior in the plane of the laminate.   Do not use orthotropic material description Ey,Ez,PRxy,PRyz,PRxz,Gxy,Gyz