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Fan, Wei; Zhong, Zhengwu; Huang, Xu; Sun, Wenbiao; Mao, Wei
Engineering structures, 09/2022, Letnik: 266Journal Article
•A multi-platform simulation method was proposed to assess the performance of reinforced concrete structures under impact loading;•Integration of the VecTor2 program with LS-DYNA to take advantage of the Modified Compression Field Theory for impact-induced shear damage;•Development of a coupling method to satisfy the compatibility at the interface between the LS-DYNA model and the VecTor2 model;•Verification of the proposed method through examples for general dynamic analysis as well as vehicle/ship head-on collisions;•The advantages of the multi-platform method over the conventional standalone simulation method as demonstrated through a vehicle-bridge collision problem. This study presents a multi-platform simulation method for performance assessment of reinforced concrete (RC) structures subjected to impact loading. The method is demonstrated through the integration of two finite element analysis packages, LS-DYNA and VecTor2, to take advantage of the explicit integration scheme and various contact types in LS-DYNA for impact analysis and the Modified Compression Field Theory (MCFT) in VecTor2 for reliable modelling of concrete structures, especially for shear-related failure. The communication between the two programs is enabled through a standardized communication protocol which allows data exchange during the simulation in a seamless manner. When applying this method to vehicle/ship collision analysis, one major challenge is the modelling of the impact interface between the three-dimensional LS-DYNA model and the two-dimensional VecTor2 model. Therefore, a coupling method for models with different dimensions is proposed and also justified through a few verification examples. The method is also applied to a vehicle-bridge head-on collision problem and it is found that the conventional modelling method based on a single LS-DYNA model could overestimate the crashworthiness of the RC structures.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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