Nonlinear finite element analysis of equivalent Iwan model considering threaded connections DOI Creative Commons

Litai Sun,

Ling Li,

Xiaochan Gao

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 7, 2025

Aiming at the complex geometric nonlinearity and contact behavior of threaded connections, this study proposes a novel approach by constructing finite element model equivalent to Iwan for nonlinear analysis. The innovation work lies in development subroutine based on model, which effectively simulates inherent connections during tightening. This is followed Abaqus software investigate relationship between applied torque preload force threads. accuracy are verified against theoretical results. Furthermore, explores impact coefficient friction rotational amplitude mechanical response connection, providing new insights into how these factors influence force, stress concentration, risk deformation. results show that can accurately capture joint. Specifically, it found increasing enhances but may also increase concentration deformation risks. Similarly, increases lead plastic higher has not been sufficiently addressed previous studies.

Язык: Английский

Nonlinear finite element analysis of equivalent Iwan model considering threaded connections DOI Creative Commons

Litai Sun,

Ling Li,

Xiaochan Gao

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 7, 2025

Aiming at the complex geometric nonlinearity and contact behavior of threaded connections, this study proposes a novel approach by constructing finite element model equivalent to Iwan for nonlinear analysis. The innovation work lies in development subroutine based on model, which effectively simulates inherent connections during tightening. This is followed Abaqus software investigate relationship between applied torque preload force threads. accuracy are verified against theoretical results. Furthermore, explores impact coefficient friction rotational amplitude mechanical response connection, providing new insights into how these factors influence force, stress concentration, risk deformation. results show that can accurately capture joint. Specifically, it found increasing enhances but may also increase concentration deformation risks. Similarly, increases lead plastic higher has not been sufficiently addressed previous studies.

Язык: Английский

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