Low velocity impact response of reinforced concrete beams : experimental and numerical investigation
In general, transition in the mode of failure from flexure failure at the static loading to shear failure at low velocity impact in reinforced concrete (RC) beams has been reported in the literature. To quantify the above-mentioned statement, a drop-weight impact test program was carried out on RC b...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/103088 http://hdl.handle.net/10220/25730 |
| _version_ | 1811685227941068800 |
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| author | Adhikary, Satadru Das Li, Bing Fujikake, Kazunori |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Adhikary, Satadru Das Li, Bing Fujikake, Kazunori |
| author_sort | Adhikary, Satadru Das |
| collection | NTU |
| description | In general, transition in the mode of failure from flexure failure at the static loading to shear failure at low velocity impact in reinforced concrete (RC) beams has been reported in the literature. To quantify the above-mentioned statement, a drop-weight impact test program was carried out on RC beams. The test results showed that no shear failure has been occurred under impact loading in statically flexure-critical beams (i.e., shear to bending resistance ration greater than one) however with increasing drop-heights more localized failure with extensive concrete crushing at the impact region was observed. Impact interface (i.e., direct impact or with some interface such as steel or plywood plate in between impactor and beam) could be one reason that the change in failure mode has not been observed in the current test program. To simulate the structural impact response in details, a three-dimensional nonlinear finite element (FE) model was also developed. Numerical results agreed well with the test results obtained from current test program and also from the literature. Finally, the numerical model was used to conduct parametric studies to evaluate the effects of design parameters (e.g., ratio of beam- mass to impactor-mass, longitudinal reinforcement ratio, compressive strength of concrete and boundary conditions etc.) on impact responses and failure modes. |
| first_indexed | 2024-10-01T04:41:11Z |
| format | Journal Article |
| id | ntu-10356/103088 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:41:11Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1030882020-03-07T11:43:48Z Low velocity impact response of reinforced concrete beams : experimental and numerical investigation Adhikary, Satadru Das Li, Bing Fujikake, Kazunori School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Structures and design In general, transition in the mode of failure from flexure failure at the static loading to shear failure at low velocity impact in reinforced concrete (RC) beams has been reported in the literature. To quantify the above-mentioned statement, a drop-weight impact test program was carried out on RC beams. The test results showed that no shear failure has been occurred under impact loading in statically flexure-critical beams (i.e., shear to bending resistance ration greater than one) however with increasing drop-heights more localized failure with extensive concrete crushing at the impact region was observed. Impact interface (i.e., direct impact or with some interface such as steel or plywood plate in between impactor and beam) could be one reason that the change in failure mode has not been observed in the current test program. To simulate the structural impact response in details, a three-dimensional nonlinear finite element (FE) model was also developed. Numerical results agreed well with the test results obtained from current test program and also from the literature. Finally, the numerical model was used to conduct parametric studies to evaluate the effects of design parameters (e.g., ratio of beam- mass to impactor-mass, longitudinal reinforcement ratio, compressive strength of concrete and boundary conditions etc.) on impact responses and failure modes. Published version 2015-06-02T05:43:57Z 2019-12-06T21:05:20Z 2015-06-02T05:43:57Z 2019-12-06T21:05:20Z 2015 2015 Journal Article Adhikary, S. D., Li, B., & Fujikake, K. (2015). Low velocity impact response of reinforced concrete beams : experimental and numerical investigation. International journal of protective structures, 6(1), 81-112. 2041-4196 https://hdl.handle.net/10356/103088 http://hdl.handle.net/10220/25730 10.1260/2041-4196.6.1.81 en International journal of protective structures © 2015 Multi-Science Publishing. This paper was published in International Journal of Protective Structures and is made available as an electronic reprint (preprint) with permission of Multi-Science Publishing. The paper can be found at the following official DOI: [http://dx.doi.org/10.1260/2041-4196.6.1.81]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering::Structures and design Adhikary, Satadru Das Li, Bing Fujikake, Kazunori Low velocity impact response of reinforced concrete beams : experimental and numerical investigation |
| title | Low velocity impact response of reinforced concrete beams : experimental and numerical investigation |
| title_full | Low velocity impact response of reinforced concrete beams : experimental and numerical investigation |
| title_fullStr | Low velocity impact response of reinforced concrete beams : experimental and numerical investigation |
| title_full_unstemmed | Low velocity impact response of reinforced concrete beams : experimental and numerical investigation |
| title_short | Low velocity impact response of reinforced concrete beams : experimental and numerical investigation |
| title_sort | low velocity impact response of reinforced concrete beams experimental and numerical investigation |
| topic | DRNTU::Engineering::Civil engineering::Structures and design |
| url | https://hdl.handle.net/10356/103088 http://hdl.handle.net/10220/25730 |
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