A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction
A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction
(OP)
Hi there
Good day
i have some inquiry and curiosity, may I know, is the terminology/notation for A11 calculated based on CLT for homogenous composite
similar with E11? (modulus of elasticity in 11 direction)
thanks
Good day
i have some inquiry and curiosity, may I know, is the terminology/notation for A11 calculated based on CLT for homogenous composite
similar with E11? (modulus of elasticity in 11 direction)
thanks





RE: A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction
E11 = 1/(a11*t) where a is from inverse of ABD
RE: A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction
hence E11 is A11 divided by thickness of the laminate then?
am i right?
many thanks SWcomposites
RE: A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction
Symmetric laminate (need not be balanced): Ex = 1/(a11*t)
Symmetric and balanced laminate: Ex = (A11-A12^2/A22)/t
Unsymmetric laminate: Calculation based upon what curvatures are restrained and only equal to the above if all curvatures are not restrained. But that is not the typical scenario and usually one or more curvature directions are suppressed when an in-plane load is applied to an unsymmetric laminate.
Brian
www.espcomposites.com
RE: A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction
Ex = E22 right?
hence in my case E11 = Eyy
RE: A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction
E1 = lamina fiber or warp dirction
Ex = laminate x direction (x is usually set = 0 fiber direction)
Please get a laminated plate theory text and study it.
RE: A11 in ABD matrix based on CLT compared with E11 (modulus of elasticity) composite in 11 direction