Mixed Dimensional Coupling in Finite Element Stress Analysis

Shim, Kar Wei; Monaghan, D.; Armstrong, Cecil

doi:10.1007/s003660200021

Cited by 82 publications

(37 citation statements)

References 5 publications

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“…forming the constraints between different degree of freedom using MPC equations, and solving the incoordinate between the different dimensional elements. Such as, McCune et al [10] and Shim et al [11] proposed an MPC equation deduction procedure for connection different elements based on the work reciprocal theorem in the interface; according to the global analysis results of a long span bridge, Li et al [4] indicated that the multi-scale model using MPC can be utilized to calculate the local thermal stress.…”

Section: The Common Methods Used In Structural Local Refined Modelingmentioning

confidence: 99%

Boundary Condition Simulation for Structural Local Refined Modeling Using Genetic Algorithm

Zhong¹,

Liu²,

Guo³

et al. 2017

dtcse

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Abstract. Structural dynamic strength evaluation is paid more attentions in aeronautics and astronautics engineering, and the structural local refined modelling technique which can be utilized to precisely calculate the dynamic strains in the critical local sites of the structure is the key issue in the structural dynamic strength evaluation. Firstly, four common methods, i.e. global / local two-step method, substructure method, transition element method and multi-point constraint (MPC) method, used in structural local refined modeling was reviewed. Then, a structural local refined modeling method, which uses simple physical models to simulate the effect of the surrounding structure on the local structure, is proposed based on Genetic Algorithm (GA). Finally, the proposed structural local refined modeling method was illustrated by simulative example of a four edges fixed aluminum rectangular plate.

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Section: The Common Methods Used In Structural Local Refined Modelingmentioning

confidence: 99%

Boundary Condition Simulation for Structural Local Refined Modeling Using Genetic Algorithm

Zhong¹,

Liu²,

Guo³

et al. 2017

dtcse

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“…Compared to the Shell-to-Solid coupling option available in the finite element software Abaqus [10], the method is shown to eliminate the undesirable stress disturbances at the interface between differently-discretized subdomains in the case of isotropic elastic material. However, the local/global coupling must be carried at a sufficient distance from boundaries and/or discontinuities in the model [11]. In addition, the accurate derivation of the MPC equations for composite materials may become impracticable [12].…”

Section: Multi-dimensional Finite Elements Couplingmentioning

confidence: 99%

Multiple length/time-scale simulation of localized damage in composite structures using a Mesh Superposition Technique

Gigliotti

Pinho

2015

Composite Structures

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“…It is important to study the coupling modes for realizing the incorporation of different dimensional elements in multiscale numerical model. McCune et al [13] proposed a method that can correctly couple beam elements to shell elements and shell elements to solid elements, and Shim et al [14] provided a novel relationship among nodal degrees of freedom between the different dimensional element types in elastic regions. In addition, the multiscale numerical simulation was also applied to bridge engineering to analyze the damage process of bridges [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Seismic Collapse Analysis of RC Highway Bridges Based on a Simplified Multiscale FE Modeling Approach

Han

et al. 2017

Shock and Vibration

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Multiscale finite element (FE) modeling offers a balance between computational efficiency and accuracy in numerical simulations, which is appropriate for analysis of seismic collapse of RC highway bridges. Some parts of structures that need detailed analysis can be modeled by solid elements, while some subordinate parts can be simulated by beam elements or shell elements to increase the computational efficiency. In the present study, rigid surface coupling method was developed to couple beam elements with solid elements using the LS-DYNA software. The effectiveness of this method was verified by performing simulation experiments of both a single-column pier and a two-span simply supported beam bridge. Using simplified multiscale FE modeling, analyses of collapse and local failure of a multispan simply supported beam bridge and a continuous rigid frame bridge were conducted to illustrate the approach in this paper. The results demonstrate that the simplified multiscale model reasonably simulates the collapse process and local damage of complex bridges under seismic loading.

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Mixed Dimensional Coupling in Finite Element Stress Analysis

Cited by 82 publications

References 5 publications

Boundary Condition Simulation for Structural Local Refined Modeling Using Genetic Algorithm

Boundary Condition Simulation for Structural Local Refined Modeling Using Genetic Algorithm

Multiple length/time-scale simulation of localized damage in composite structures using a Mesh Superposition Technique

Seismic Collapse Analysis of RC Highway Bridges Based on a Simplified Multiscale FE Modeling Approach

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