Fracture analysis for viscoelastic creep using peridynamic formulation

• Autorzy: Azizi Muhammad Azim , Mohd Zahari Mohd Zakiyuddin , Abdul Rahim Sharafiz , Azman Muhamad Amin

Identyfikatory

DOI

10.15632/jtam-pl/152712

• Języki publikacji: EN

Abstrakty

EN

The purpose of this paper is to provide a peridynamic (PD) model for the prediction of the viscoelastic creep deformation and failure model. The viscoelastic characteristic consists of several stages, namely primary creep, secondary creep, tertiary creep and fracture. A non- linear viscoelastic creep equation based on the internal state variable (ISV) theory covering four creep stages and PD equations are used. The viscoelastic equation is inserted into the PD equation to derive a PD model with two time parameters, i.e., numerical time and vis- coelastic real time. The parameters of the viscoelastic equation are analyzed and optimized. A comparison between numerical and experimental data is performed to validate this PD model. The new PD model for nonlinear viscoelastic creep behavior is confirmed by an ac- ceptable similarity between the numerical and experimental creep strain curves with an error of 15.85%. The nonlinearity of the experimental and numerical data is sufficiently similar as the error between the experimental and numerical curves of the secondary stage strain rate against the load is 21.83%. The factors for the errors are discussed and the variation of the constants in the nonlinear viscoelastic model is also investigated.

Słowa kluczowe

EN

viscoelastic; peridynamic; creep behavior; fracture mechanic

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2022
• Tom: Vol. 60 nr 4
• Strony: 579--591
• Opis fizyczny: Bibliogr. 24 poz., rys. tab.

Twórcy

autor

Azizi Muhammad Azim

• Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, Malaysia

• https://orcid.org/0000-0002-4844-8002

autor

Mohd Zahari Mohd Zakiyuddin

• Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, Malaysia

autor

Abdul Rahim Sharafiz

• Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, Malaysia

• https://orcid.org/0000-0003-0035-5891

autor

Azman Muhamad Amin

• Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, Malaysia

• https://orcid.org/0000-0002-2903-6512

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).