Fillet effect on the bending crashworthiness of thin-walled square tubes

• Autorzy: Xie Zhongyou , Zhao Zhixian , Zhou Xiuneng , Li Cheng

Identyfikatory

DOI

10.15632/jtam-pl/144312

• Języki publikacji: EN

Abstrakty

EN

Filleting four corners of square tubes is suggested to reduce the peak force and improve energy absorbing performance. Three-point bending tests are conducted to investigate fillet radius effects employing an ABAQUS explicit code. Three cases characterized by the ratio of width to thickness are considered. Fillet greatly reduces the maximum forces compared with square cross-sections, and the normalized maximum forces decrease with increasing wall thickness when the fillet radius is larger. Additionally, the fillet dramatically improves SEA (Specific Energy Absorption). The normalized CFE (Crash Load Efficiency) significantly exceeds that of the square ones, and the normalized CLEs are almost identical with the increasing fillet radius.

Słowa kluczowe

EN

thin-walled square tubes; bending crashworthiness; fillet effect; three-point bending; finite element analysis

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2022
• Tom: Vol. 60 nr 1
• Strony: 103--111
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Xie Zhongyou

• School of Architectural Engineering, Tongling University, Tongling, Anhui, China

autor

Zhao Zhixian

• School of Rail Transportation, Soochow University, Suzhou, Jiangsu, China

autor

Zhou Xiuneng

• School of Rail Transportation, Soochow University, Suzhou, Jiangsu, China

autor

Li Cheng

• School of Rail Transportation, Soochow University, Suzhou, Jiangsu, China

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