Hi All ,
We are currently preparing a justification to support an increase in the NDI porosity design allowable of monolithic and sandwich CFRP laminates .
Part of the justification revolves around a mechanical testing regime of samples that contain a higher level of porosity that seeks to...
Hi All ,
Whilst I have an understanding of the use of mould releases and the process requirements when curing thermosetting expoxy composites , I am less sure of the issues surrounding the manufacture of preforms .
The carbon fibre we are using to fabricate RTM preforms is coated with a...
Hi all ,
Does anyone have any experience of automated CAD ply profiling dry fabrics ?
I am currently doing some investigations into the issue and am having trouble maintaining the profiles as they are quite delicate .
Does anyone have any knowledge of possible stabilisation films that may be...
Morning All ,
I was wondering if anyone had any experience of fabricating aerospace structural compoistes by RFI ( actually a type of VARTM ).
This is a departure for us from traditional pre-preg manufacture and I was wondering how the environmental requirments ( clean room / environmentally...
Hi All ,
I've got a major problem bonding anodised aluminium plates together to form a tensile lap shear specimen .
The film adhesive used is Redux 308 NA and my problem is that the failed bond looks exceptionally porous . There are large voids within the glue line , possibly up to a couple of...
Evening Forum ,
Can anyone suggest processing factors that may yield lower than expected ILSS test scores for CFRP laminates . The laminates are usually aproximately 8 plies thick with a nominal thickness of 2mm . The fabric is usually woven with the 0 Deg direction aligned in the same...
