A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity Impact
During quasi-static compressive process, the gradient metallic cellular material can be divided into deformed region and undeformed region before the material is compressed compactly. The deformation mode of the gradient metallic cellular material is not the same as that of homogeneous metallic cell...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/3016014 |
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| _version_ | 1832548930349432832 |
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| author | Dengbao Xiao Guiping Zhao |
| author_facet | Dengbao Xiao Guiping Zhao |
| author_sort | Dengbao Xiao |
| collection | DOAJ |
| description | During quasi-static compressive process, the gradient metallic cellular material can be divided into deformed region and undeformed region before the material is compressed compactly. The deformation mode of the gradient metallic cellular material is not the same as that of homogeneous metallic cellular material. Meanwhile, no plateau stress is observed in the crushing stress versus strain curve of the gradient metallic cellular material. A formula of calculating crushing stress of the gradient metallic cellular material is presented. Subsequently, a collision model for protective structures with gradient metallic cellular material is presented to investigate the vibration isolation of the large mass protection under low velocity impact based on Lagrange’s equation of the second kind. The effects of the gradient metallic cellular material on the acceleration peak of inner protected structure are theoretically discussed. And the results show that adopting gradient metallic cellular material instead of homogeneous metallic cellular material with equivalent mass can decrease the peak acceleration value of the inner protected structure. |
| format | Article |
| id | doaj-art-fe485a491aba47a6bf661e99613374dd |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-fe485a491aba47a6bf661e99613374dd2025-02-03T06:12:47ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/30160143016014A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity ImpactDengbao Xiao0Guiping Zhao1State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, ChinaDuring quasi-static compressive process, the gradient metallic cellular material can be divided into deformed region and undeformed region before the material is compressed compactly. The deformation mode of the gradient metallic cellular material is not the same as that of homogeneous metallic cellular material. Meanwhile, no plateau stress is observed in the crushing stress versus strain curve of the gradient metallic cellular material. A formula of calculating crushing stress of the gradient metallic cellular material is presented. Subsequently, a collision model for protective structures with gradient metallic cellular material is presented to investigate the vibration isolation of the large mass protection under low velocity impact based on Lagrange’s equation of the second kind. The effects of the gradient metallic cellular material on the acceleration peak of inner protected structure are theoretically discussed. And the results show that adopting gradient metallic cellular material instead of homogeneous metallic cellular material with equivalent mass can decrease the peak acceleration value of the inner protected structure.http://dx.doi.org/10.1155/2016/3016014 |
| spellingShingle | Dengbao Xiao Guiping Zhao A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity Impact Shock and Vibration |
| title | A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity Impact |
| title_full | A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity Impact |
| title_fullStr | A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity Impact |
| title_full_unstemmed | A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity Impact |
| title_short | A Collision Model for Protective Structure with Gradient Metallic Cellular Material under Low Velocity Impact |
| title_sort | collision model for protective structure with gradient metallic cellular material under low velocity impact |
| url | http://dx.doi.org/10.1155/2016/3016014 |
| work_keys_str_mv | AT dengbaoxiao acollisionmodelforprotectivestructurewithgradientmetalliccellularmaterialunderlowvelocityimpact AT guipingzhao acollisionmodelforprotectivestructurewithgradientmetalliccellularmaterialunderlowvelocityimpact AT dengbaoxiao collisionmodelforprotectivestructurewithgradientmetalliccellularmaterialunderlowvelocityimpact AT guipingzhao collisionmodelforprotectivestructurewithgradientmetalliccellularmaterialunderlowvelocityimpact |