This paper presents the in-plane shear moduli of three-dimensionally (3D)
woven angle interlock composites with different proportions of through the
thickness binder content. The in-plane shear modulus Gxy
was determined via three techniques: the plate twist test, the V notched beam
Iosipescu (ASTM D 5379) and the V notched rail shear (ASTM
D 7078) test. The results indicate that the plate twist method is suitable
for the measurement of in-plane shear modulus for different 3D weave architectures
with large repeat unit cells, and that the measurement is more representative
of the global material response.
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