2023
DOI: 10.1111/ffe.14080
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Fracture toughness of a rigid polyurethane foam: experimental and numerical investigation by varying the specimen sizes

Abstract: In the present paper, the fracture toughness of a polyurethane (PUR) foam (manufactured by Necumer GmbH, Germany, under the commercial designation Necuron 651) is experimentally and numerically investigated in order to examine its dependence on the specimen sizes. As a matter fact, to the best knowledge of the present authors, such an analysis is still missing in the technical literature. To perform the experimental campaign, notched PUR foam beams, with different geometrical sizes, are tested under three‐poin… Show more

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