Structural Engineering and Mechanics

  • 제18권5호
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  • Pages.627-644
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  • 2004
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Endochronic simulation for viscoplastic collapse of long, thick-walled tubes subjected to external pressure and axial tension

  • Lee, Kuo-Long (Department of Mechanical Engineering, Far East College) ;
  • Chang, Kao-Hua (Department of Engineering Science, National Cheng Kung University)
  • 투고 : 2003.11.07
  • 심사 : 2004.06.04
  • 발행 : 2004.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the endochronic theory was used to investigate the collapse of thick-walled tubes subjected to external pressure and axial tension. The experimental and theoretical findings of Madhavan et al. (1993) for thick-walled tubes of 304 stainless steel subjected to external pressure and axial tension were compared with the endochronic simulation. Collapse envelopes for various diameter-to-thickness tubes under two different pressure-tension loadings were involved. It has been shown that the experimental results were aptly described by the endochronic approach demonstrated from comparison with the theoretical prediction employed by Madhavan et al. (1993). Furthermore, by using the rate-sensitivity function of the intrinsic time measure proposed by Pan and Chern (1997) in the endochronic theory, our theoretical analysis was extended to investigate the viscoplastic collapse of thick-walled tubes subjected to external pressure and axial tension. It was found that the pressure-tension collapse envelopes are strongly influenced by the strain-rate during axial tension. Due to the hardening of the metal tube of 304 stainless steel under a faster strain-rate during uniaxial tension, the size of the tension-collapse envelope increases.

키워드

과제정보

연구 과제 주관 기관 : National Science Council

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피인용 문헌

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  2. Endochronic simulation for the response of 1020 carbon steel tubes under symmetric and unsymmetric cyclic bending with or without external pressure vol.8, pp.2, 2004, https://doi.org/10.12989/scs.2008.8.2.099
  3. Time-dependent and inelastic behaviors of fiber- and particle hybrid composites vol.34, pp.4, 2004, https://doi.org/10.12989/sem.2010.34.4.525