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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.23 No.1
- 발행연도
- 2017.1
- 수록면
- 31 - 40 (10page)
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초록· 키워드
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This article aims at presenting multi objective optimization of parameters that affect crashworthiness characteristics of bi-tubular structures using Taguchi method with grey relational analysis. To design the experiments, the <i>L</i><sub>9</sub> orthogonal array has been used and based on that, the inner tubes have been fabricated by varying the three influence factors such as reference diameter, length difference and numbers of sides of the polygon with three levels, but all the outer cylinders have the same diameter and length 90 mm and 135 mm respectively. Then, the tailor made bi-tubular steel structures were subjected into quasi static axial compression. From the test results it is found that the crushing behaviors of bi-tubular structures with different combinations were fairly significant. The important responses (crashworthiness indicators) specific energy absorption and crush force efficiency have been evaluated from load - displacement curve. Finally optimal levels of parameters were identified using grey relational analysis, and significance of parameters was determined by analysis of variance. The optimum crashworthiness parameters are reference diameter 80 mm, length difference 0 mm and number of sides of polygon is 3, i.e., triangle within the selected nine bi-tube combinations.
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참고문헌 (21)
참고문헌 신청
Abramowicz, W. / 1986 / Dynamic progressive buckling of circular and square tubes / Int. J. Impact Eng 4(4):243~270
Abramowicz, W. / 1989 / Axial crushing of multi corner sheet metal columns / J. Appl. Mech 56(1):113~120
Alavi Nia, A. / 2010 / Comparative analysis of energy absorption and deformations of thin walled tubes with various section geometries extrusions / Thin-Wall. Struct 48(12):946~954
Alavi Nia, A. / 2014 / Comparative analysis of energy absorption capacity of simple and multi-cell thin-walled tubes with triangular, square, hexagonal and octagonal sections / Thin-Wall. Struct 74:155~165
Alexander, J. M. / 1960 / An approximate analysis of the collapse of thin cylindrical shells under axial loading / Q. J. Mech. Appl. Math 13(1):10~15
Abramowicz, W. / 1989 / Axial crushing of multi corner sheet metal columns / J. Appl. Mech 56(1):113~120
Alavi Nia, A. / 2010 / Comparative analysis of energy absorption and deformations of thin walled tubes with various section geometries extrusions / Thin-Wall. Struct 48(12):946~954
Alavi Nia, A. / 2014 / Comparative analysis of energy absorption capacity of simple and multi-cell thin-walled tubes with triangular, square, hexagonal and octagonal sections / Thin-Wall. Struct 74:155~165
Alexander, J. M. / 1960 / An approximate analysis of the collapse of thin cylindrical shells under axial loading / Q. J. Mech. Appl. Math 13(1):10~15
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