3D Thermal Strain, Quick Hand Calc?
3D Thermal Strain, Quick Hand Calc?
(OP)
I know the 1D equation...coeff. th. exp. * delta T * L = e. I am able to do a quick check with that equation, but I want to check my FEM results with a more accurate 3D equation. Anyone know of a simplified way of checking strains in 3D?





RE: 3D Thermal Strain, Quick Hand Calc?
However, as you mention FEM results, I suppose you have stress in your object (otherwise you would get the result with very simple hand calcs): in that case there is no general rule, only a few simple cases may be solved by analysis and you must specify all the conditions (geometry, materials, boundary).
prex
http://www.xcalcs.com
Online tools for structural design
RE: 3D Thermal Strain, Quick Hand Calc?