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A platform for research: civil engineering, architecture and urbanism
Multisize Discrete Solid-Element Method for Continua
This paper proposes a multisize discrete solid-element method (MDSEM) for continua based on the discrete solid-element method (DSEM). The arrangement of spherical elements and the setting criteria of springs between spherical elements are established in MDSEM. The spring stiffness is deduced based on the principle of energy conservation, and the relationship between spring stiffness and elastic constants is established. The proposed physical model of MDSEM is able to connect spherical elements of two different radiuses, while the radiuses of spherical elements in DSEM are the same. MDSEM is proven to be an effective method for analyzing the mechanical behavior of continuum structures, as it is able to reduce the number of spherical elements and connections and improve calculation efficiency. Examples are presented to discuss the effect of direction of the force transmission path and the location of the transition region on simulation results. The effect of direction of force transmission path is not significant, but the location of the transition region has an effect. The larger the proportion of the region of the small spherical elements in the MDSEM model, the more accurate the calculation.
Multisize Discrete Solid-Element Method for Continua
This paper proposes a multisize discrete solid-element method (MDSEM) for continua based on the discrete solid-element method (DSEM). The arrangement of spherical elements and the setting criteria of springs between spherical elements are established in MDSEM. The spring stiffness is deduced based on the principle of energy conservation, and the relationship between spring stiffness and elastic constants is established. The proposed physical model of MDSEM is able to connect spherical elements of two different radiuses, while the radiuses of spherical elements in DSEM are the same. MDSEM is proven to be an effective method for analyzing the mechanical behavior of continuum structures, as it is able to reduce the number of spherical elements and connections and improve calculation efficiency. Examples are presented to discuss the effect of direction of the force transmission path and the location of the transition region on simulation results. The effect of direction of force transmission path is not significant, but the location of the transition region has an effect. The larger the proportion of the region of the small spherical elements in the MDSEM model, the more accurate the calculation.
Multisize Discrete Solid-Element Method for Continua
J. Eng. Mech.
Wang, Xi (author) / Chen, Gang (author) / Feng, Ruoqiang (author)
2023-01-01
Article (Journal)
Electronic Resource
English
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