Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)
- Volume 2 Issue 1
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- Pages.65-72
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- 1994
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- 1225-6382(pISSN)
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- 2234-0149(eISSN)
Collapse of Thin-Walled Hatted Section Tubes
박판 상형 부재의 붕괴 특성연구
Abstract
Collapse characteristics of thin-walled hatted section tubes are investigated. The square section members with flanges are substituted by the equivalent rectangular tube. The stiffening effects of flanges are transformed to the restraining plate with the equivalency of buckling strength. The square tubes of single-hatted and double-hatted sections are investigated. The double-hatted section members show symmetric and antisymmetric crushing modes depending on the stiffness of flanges. The single-hatted section members show only symmetric modes. The bifurcation point of the compact crushing modes are investigated by experiments and shown almost same thickness-width ratio of the rectangular tubes. A large maximum crippling strength can be obtained by double-hatted section members with proper flange dimensions.
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