Calculating strength of UD laminate from a Quasi-isotropic laminate
Calculating strength of UD laminate from a Quasi-isotropic laminate
(OP)
Hi all
As I having trouble doing the tensile tests for a UD carbon/epoxy laminate, I decided to do the tests for a quasi-isotropic layup in order to avoid fibre-bridging and grip failure in the case of UD samples.
Is there a good approximation technique that will enable me to back calculate the strength of a UD from a quasi-isotropic layup?
Kind Regards
As I having trouble doing the tensile tests for a UD carbon/epoxy laminate, I decided to do the tests for a quasi-isotropic layup in order to avoid fibre-bridging and grip failure in the case of UD samples.
Is there a good approximation technique that will enable me to back calculate the strength of a UD from a quasi-isotropic layup?
Kind Regards





RE: Calculating strength of UD laminate from a Quasi-isotropic laminate
RE: Calculating strength of UD laminate from a Quasi-isotropic laminate
I just realised that I made a mistake during the layup. The panel is supposed to have a balanced symmetric layup [45/0/-45/90]2s. But I made it [45/0/-45/90]4. Because of this my test coupons have a slight curvature, not perfectly straight.
How much will this influence my strength results ?
RE: Calculating strength of UD laminate from a Quasi-isotropic laminate