High gsm ply laminate
High gsm ply laminate
(OP)
What are the penalties for using higher gsm fabrics and are there any publications available on the internet.
Thanks
Thanks
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RE: High gsm ply laminate
RE: High gsm ply laminate
RE: High gsm ply laminate
Achieving the desired ply direction proportions in a given thickness is also more problematic as plies get thicker.
RE: High gsm ply laminate
Swcomposites - is the reduction in the compression strength resulted from increase in the weaviness of ply due to heavier tow (i.e. 12K fibre)??
RPstress & all - what ifI use a combination of different gsm fabric e.g.200gsm and 400gsm fabrics, would some of the above problems improved? and what additional problems it will cause??
by the way, is there lower K but higher gsm fabric?? and if so would it resolve some of the above problems??
Thanks in advance
RE: High gsm ply laminate
There are no particular mechanical property penalties in mixing and matching that I'm aware of. Others may know better.
Re k vs. areal weight, this depends on the fabric supplier (and possibly on the fiber supplier). Tows can be spread out before being woven together within limits. The tows in a typical typical fabric aren't round, they're spread out something like 5 or 10:1 in a flattish somewhat oval shape. I'm not sure how this sort of thing affects mechanical properties.
If you want a cured ply thickness of 0.25 mm (10 thou) and the material is from a commercial suppier who deals with 320k tow, then it needs to be spread out something like 20:1.
Not sure how good fabric suppliers are at bunching tows up.
One other practical point about ply thickness, thinner plies drape more easily.