SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE
In order to improve the crashworthiness performance of the thin-walled metal tube,it presents a nested square thin-walled tube structure. The nonlinear explicit finite element method is used to study the energy-absorption characteristics of the nested square thin-walled tube. The results show that:...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2018-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.02.035 |
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| author | YU MingYang MI CaiYing |
| author_facet | YU MingYang MI CaiYing |
| author_sort | YU MingYang |
| collection | DOAJ |
| description | In order to improve the crashworthiness performance of the thin-walled metal tube,it presents a nested square thin-walled tube structure. The nonlinear explicit finite element method is used to study the energy-absorption characteristics of the nested square thin-walled tube. The results show that: during the collision happening in the axial direction,the deformation mode of the nested square thin-walled tube is asymptotic telescoping deformation; the specific energy absorption of the nested square thin-walled tube is 25. 72 kJ/kg,which is about 1. 64 times and 1. 31 times higher than the ordinary square tube and symmetrical four cells tube; reducing the thickness of the embedded walls can achieve the lightweight design target and shortening the height of the embedded walls and ribs can effectively reduce the initial peak crushing force. The nested structure can effectively improve the crashworthiness of thin-walled tubes. The research results provide a reference for the further research and engineering applications of vehicle energy-absorbing element. |
| format | Article |
| id | doaj-art-c5aabf082f5647c0b54d400871f58bf5 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2018-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-c5aabf082f5647c0b54d400871f58bf52025-01-15T02:32:35ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692018-01-014047247630601491SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBEYU MingYangMI CaiYingIn order to improve the crashworthiness performance of the thin-walled metal tube,it presents a nested square thin-walled tube structure. The nonlinear explicit finite element method is used to study the energy-absorption characteristics of the nested square thin-walled tube. The results show that: during the collision happening in the axial direction,the deformation mode of the nested square thin-walled tube is asymptotic telescoping deformation; the specific energy absorption of the nested square thin-walled tube is 25. 72 kJ/kg,which is about 1. 64 times and 1. 31 times higher than the ordinary square tube and symmetrical four cells tube; reducing the thickness of the embedded walls can achieve the lightweight design target and shortening the height of the embedded walls and ribs can effectively reduce the initial peak crushing force. The nested structure can effectively improve the crashworthiness of thin-walled tubes. The research results provide a reference for the further research and engineering applications of vehicle energy-absorbing element.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.02.035Nested square thin-walled tubeExplicit finite element methodCrash worthinessAxial impact |
| spellingShingle | YU MingYang MI CaiYing SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE Jixie qiangdu Nested square thin-walled tube Explicit finite element method Crash worthiness Axial impact |
| title | SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE |
| title_full | SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE |
| title_fullStr | SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE |
| title_full_unstemmed | SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE |
| title_short | SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE |
| title_sort | simulation analysis for energy absorption properties of a nested square thin walled tube |
| topic | Nested square thin-walled tube Explicit finite element method Crash worthiness Axial impact |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.02.035 |
| work_keys_str_mv | AT yumingyang simulationanalysisforenergyabsorptionpropertiesofanestedsquarethinwalledtube AT micaiying simulationanalysisforenergyabsorptionpropertiesofanestedsquarethinwalledtube |