Exact(3)
The beloved Nasdaq composite failed to live up to its reputation, shedding 0.8% during the abbreviated trading week.
However, the yield strength of the composite failed to be further improved when adding too much B4C because of the agglomeration of the reinforcements.
However, they found that at low temperatures, the joint strength was low because the composite failed first and did not allow the adhesive to develop its full shear strength capacity.
Similar(57)
Another advantage is that the failure mode and the stress level in each constituent material are automatically indicated when the composite fails.
It means that a part of the fibres are broken and not carrying load before the composite fails while some fibres still carry a reduced load due to their matrix adhesion.
"Brittle" (low failure strain) behavior occurs when the matrix cracking stresses are sufficiently high; the composite fails during the matrix cracking regime of deformation and at a strain that is controlled by the matrix flaw population and elastic properties.
The composites failed by shear cut-out, delamination and fibre fracture.
Although both composites failed non-catastrophically in symmetrical four point bend testing at room temperature, the failure modes were different.
Both auxetic and woven composites experienced shear failure under quasi-static compression, where auxetic composites failed at higher shear angle of 37°, but woven composites had a failure angle of 30°.
This is because these composites fail predominantly by compressive splitting.
The former criterion predicts that composites fail when the stress exceeds the maximum tolerance value.
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