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<url><loc>https://vvgphysics.com/2026/04/22/predicting-the-brittle-ductile-transition-in-polymers-and-composites/</loc><news:news><news:publication><news:name>VVG Physics Consulting</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-04-22T18:43:35+00:00</news:publication_date><news:title>Predicting the Brittle-Ductile Transition in Polymers and Composites</news:title><news:keywords>plastics, failure, yield, fracture, theory-and-modeling</news:keywords></news:news></url></urlset>