hi, all:
we have a trouble of glass fibre reinforced polymer composites (using filament winding). For some reason, the flexural strength is always below our expectation. all the other testings such as interlaminar shear is great. Is there someone have any idea about this?
Thanks,
Tony
Does that include short beam shear? Maybe poor adhesion or resin poor sections. Frank
The short beam shear is ok. Only the flexural strength is lower
The short beam shear is ok. Only the flexural strength is lower
tony
Still wonder if it is resin distribution problem. Are you getting a green stick type fracture? Low compressive strength?
Filament winding is normally done for pressure vessels where tensile strength is the predominant mode of failure and high tensile strength is most desirable.
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