Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base
Thin-walled square columns are generally used as energy absorber in various applications due to their ease of fabrication and installation, high energy absorption capacity in terms of progressive plastic deformation and long stroke. However, the main drawback of a standard square column is the high...
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| Language: | en |
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Natural Science Publishing
2015
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| Online Access: | http://umpir.ump.edu.my/id/eprint/7682/1/Mechanics_of_Energy_Absorption_by_Progressive_Plastic_Deformation_of_a_Square_Column_with_an_Ellipsoidal_Bulge_Base.pdf http://umpir.ump.edu.my/id/eprint/7682/ http://dx.doi.org/10.12785/amis/091L06 |
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| author | M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi |
| author_facet | M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi |
| author_sort | M. A., Hassan |
| building | UMPSA Library |
| collection | Institutional Repository |
| content_provider | Universiti Malaysia Pahang Al-Sultan Abdullah |
| content_source | UMPSA Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Thin-walled square columns are generally used as energy absorber in various applications due to their ease of fabrication and installation, high energy absorption capacity in terms of progressive plastic deformation and long stroke. However, the main drawback of a standard square column is the high initial peak force. An ellipsoidal bulge base is proposed to overcome this shortcoming and at the same time to improve the crush performance. Static axial crushing were performed by finite element analysis to determine the initial peak force (IPF), crush force efficiency (CFE) and plastic specific energy absorption (SEA) of columns having ellipsoidal bulge bases with various thicknesses. It was found that the bulge base significantly enhanced the column crush performance as well as the deformation characteristics. A comparison with the plain square column was carried out and it was found that the bulge base reduced the initial peak force and increased the crush force efficiency. A simple analytical approach is proposed to predict the reduction of initial peak force with the use of this trigger mechanism |
| format | Article |
| id | my.ump.umpir.7682 |
| institution | Universiti Malaysia Pahang |
| language | en |
| publishDate | 2015 |
| publisher | Natural Science Publishing |
| record_format | eprints |
| spelling | my.ump.umpir.76822018-08-29T01:17:13Z http://umpir.ump.edu.my/id/eprint/7682/ Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi TS Manufactures Thin-walled square columns are generally used as energy absorber in various applications due to their ease of fabrication and installation, high energy absorption capacity in terms of progressive plastic deformation and long stroke. However, the main drawback of a standard square column is the high initial peak force. An ellipsoidal bulge base is proposed to overcome this shortcoming and at the same time to improve the crush performance. Static axial crushing were performed by finite element analysis to determine the initial peak force (IPF), crush force efficiency (CFE) and plastic specific energy absorption (SEA) of columns having ellipsoidal bulge bases with various thicknesses. It was found that the bulge base significantly enhanced the column crush performance as well as the deformation characteristics. A comparison with the plain square column was carried out and it was found that the bulge base reduced the initial peak force and increased the crush force efficiency. A simple analytical approach is proposed to predict the reduction of initial peak force with the use of this trigger mechanism Natural Science Publishing 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7682/1/Mechanics_of_Energy_Absorption_by_Progressive_Plastic_Deformation_of_a_Square_Column_with_an_Ellipsoidal_Bulge_Base.pdf M. A., Hassan and Amir Radzi, Ab. Ghani and Zahari, Taha and M. A., Hamdi (2015) Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base. Applied Mathematics & Information Sciences, 9. pp. 51-58. ISSN 1935-0090. (Published) http://dx.doi.org/10.12785/amis/091L06 |
| spellingShingle | TS Manufactures M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base |
| title | Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base |
| title_full | Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base |
| title_fullStr | Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base |
| title_full_unstemmed | Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base |
| title_short | Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base |
| title_sort | mechanics of energy absorption by progressive plastic deformation of a square column with an ellipsoidal bulge base |
| topic | TS Manufactures |
| url | http://umpir.ump.edu.my/id/eprint/7682/1/Mechanics_of_Energy_Absorption_by_Progressive_Plastic_Deformation_of_a_Square_Column_with_an_Ellipsoidal_Bulge_Base.pdf http://umpir.ump.edu.my/id/eprint/7682/ http://dx.doi.org/10.12785/amis/091L06 |
| url_provider | http://umpir.ump.edu.my/ |