Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA
There are several techniques to simulate rebar reinforced concrete, such as smeared model, discrete model, embedded model, CLIS (constrained Lagrange in solid) model, and CBIS (constrained beam in solid) model. In this study, however, the interaction between the concrete elements and the reinforceme...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/8857491 |
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| author | Seung H. Yang Kwang S. Woo Jeong J. Kim Jae S. Ahn |
| author_facet | Seung H. Yang Kwang S. Woo Jeong J. Kim Jae S. Ahn |
| author_sort | Seung H. Yang |
| collection | DOAJ |
| description | There are several techniques to simulate rebar reinforced concrete, such as smeared model, discrete model, embedded model, CLIS (constrained Lagrange in solid) model, and CBIS (constrained beam in solid) model. In this study, however, the interaction between the concrete elements and the reinforcement beam elements is only simulated by the discrete model and CBIS (constrained beam in solid) model. The efficiency and accuracy comparisons are investigated with reference to the analysis results by both models provided by LS-DYNA explicit finite element software. The geometric models are created using LS-PrePost, general purpose preprocessing software for meshing. The meshed models are imported to LS-DYNA where the input files are then analyzed. Winfrith and CSCM concrete material options are employed to describe the concrete damage behavior. The reinforcement material model is capable of isotropic and kinematic hardening plasticity. The load versus midspan deflection curves of the finite element models correlate with those of the experiment. Under the conditions of the same level of accuracy, the CBIS model is evaluated to have the following advantages over the discrete model. First, it has the advantage of reducing the time required for FE modeling; second, saving computer CPU time due to a reduction in total number of nodes; and third, securing a good aspect ratio of concrete elements. |
| format | Article |
| id | doaj-art-9386733b1f134814b9303a357377b766 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-9386733b1f134814b9303a357377b7662025-02-03T06:46:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/88574918857491Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNASeung H. Yang0Kwang S. Woo1Jeong J. Kim2Jae S. Ahn3National Disaster Management Research Institute, 365 Jongga-Ro, Jung-gu, Ulsan 44538, Republic of KoreaDepartment of Civil Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeonbuk 38541, Republic of KoreaDepartment of Civil Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeonbuk 38541, Republic of KoreaSchool of General Education, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeonbuk 38541, Republic of KoreaThere are several techniques to simulate rebar reinforced concrete, such as smeared model, discrete model, embedded model, CLIS (constrained Lagrange in solid) model, and CBIS (constrained beam in solid) model. In this study, however, the interaction between the concrete elements and the reinforcement beam elements is only simulated by the discrete model and CBIS (constrained beam in solid) model. The efficiency and accuracy comparisons are investigated with reference to the analysis results by both models provided by LS-DYNA explicit finite element software. The geometric models are created using LS-PrePost, general purpose preprocessing software for meshing. The meshed models are imported to LS-DYNA where the input files are then analyzed. Winfrith and CSCM concrete material options are employed to describe the concrete damage behavior. The reinforcement material model is capable of isotropic and kinematic hardening plasticity. The load versus midspan deflection curves of the finite element models correlate with those of the experiment. Under the conditions of the same level of accuracy, the CBIS model is evaluated to have the following advantages over the discrete model. First, it has the advantage of reducing the time required for FE modeling; second, saving computer CPU time due to a reduction in total number of nodes; and third, securing a good aspect ratio of concrete elements.http://dx.doi.org/10.1155/2021/8857491 |
| spellingShingle | Seung H. Yang Kwang S. Woo Jeong J. Kim Jae S. Ahn Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA Advances in Civil Engineering |
| title | Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA |
| title_full | Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA |
| title_fullStr | Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA |
| title_full_unstemmed | Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA |
| title_short | Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA |
| title_sort | finite element analysis of rc beams by the discrete model and cbis model using ls dyna |
| url | http://dx.doi.org/10.1155/2021/8857491 |
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