Sentence examples for untoughened from inspiring English sources

Measured fracture toughness values exceed those of typical untoughened epoxy networks and far exceed existing commercial phenolic networks.

In this study, Vickers microhardness measurements were used as a forensic technique to quantify damage in bulk tensile samples for three structural epoxy adhesive materials: an untoughened epoxy; a toughened epoxy; and a high toughness epoxy.

Upon re-initiation of a crack, the toughened network developed a plastic zone the size of which was consistent with the calculated zone from Irwin's model, while no evidence of such yielding was seen for the untoughened network.

The test campaign aims at characterising the influence of fibre material (carbon, glass, aramid, Vectran® and Dyneema®), matrix material (untoughened epoxy resin, toughened epoxy resin and thermoplastic PEEK), weave pattern (plain weave, twill weave, satin weave and braid) and fibre areal weight on the ±45° off-axis tensile mechanical properties.