Predictions of fracture resistance of spruce wood under mixed mode loading using non-local fracture theory and numerical modelling

• Autorzy: Romanowicz Marek

Identyfikatory

DOI

doi.org/10.15632/jtam-pl/158823

• Języki publikacji: EN

Abstrakty

EN

A novel analytical model to predict fracture resistance of a quasi-brittle material, like wood, is presented. The model is based on a scaling parameter introduced into the non-local fracture theory to take into account the specimen size effect on the development of the damage zone. An expression for length of the critical process zone, which can be used in damage tolerant design of wooden structures is derived from this theory. The model is validated with mixedmode bending tests. A numerical analysis using cohesive elements is performed to understand the role of specimen size in the development of the damage zone. The analytical predictions of the fracture resistance and the critical process zone length for wood are compared with numerical results and experimental data available in the literature.

Słowa kluczowe

EN

mixed-mode bending test; process zone length; resistance curves; fracture criteria; cohesive zone model

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2023
• Tom: Vol. 61 nr 1
• Strony: 147--162
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Romanowicz Marek

• Bialystok University of Technology, Department of Mechanical Engineering, Bialystok, Poland

• https://orcid.org/0000-0002-8712-0886

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).