CFRP laminates 2

[skipps]

can CFRP laminates deform like metals when subjected to for example internal pressure resulting in shape change then, if so is it also influenced by the type of ply stacking

 

[FEA way]

Are you interested in particular type of structure (like pressure vessels) or just CFRP in general ? I think that you should start by studying scientific articles on this topic. There are also several good books about composites, their mechanics and modeling (including modeling in Abaqus - E.J. Barbero’s book).

 

[SWComposites]

The answers are yes and yes. However most composites are have linear stress-strain response to failure; no plasticity as with most metals.

 

[skipps]

so meaning to say the CFRP can stretch the same way as steel? ain't they brittle ofcoz with nonlinearity unlike metals which tend to break than stretch

 

[SWComposites]

CFRP materials are linear to failure, at least for fiber dominated layups. No yielding or plasticity.