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Abstrakty
The aim of the present study is to investigate the residual ultimate strength characteristics of box girders with variable cracks under torsional loading. A series of finite element models are established by changing the crack length and crack angle using a commercial FEA program, ABAQUS. The cracks are located at the center and torques are applied on both ends of the box beam. Different aspect ratios are considered to evaluate the effects of cracks on box beams for various widths and lengths of panels in the middle yielding region. The accuracy of the nonlinear FEA results is veri?ed by a comparison with previous predicted formulas. Based on the FEA results, the relationship between the residual ultimate strength and crack parameters can be indicated in a function with period of in the form of Fourier series.
Rocznik
Tom
Strony
193--198
Opis fizyczny
Bibliogr. 15 poz., rys.
Bibliografia
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- 5 Paik, JK. 2008. Residual ultimate strength of steel plates with longitudinal cracks under axial compressionexperiments. Ocean Engineering35:1775‐1783.
- 6 Paik, JK. 2009. Residual ultimate strength of steel plates with longitudinal cracks under axial compression‐ Nonlinear finite element method investigations. Ocean Engineering35:266‐276.
- 7 Rahman, S & Nafiseh, K. 2011. Experimental and numerical studies on buckling of cracked thin‐plates under full and partial compression edge loading. Thin‐Walled Structures49: 1504‐1516
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- 11 Shi, G.J & Wang, D.Y. 2012. Residual ultimate strength of open box girders with cracked damage. Ocean Engineering 43:90‐101.
- 12 Kim, K & Yoo, C.H. 2008. Ultimate strengths of steel rectangular box beams subjected to combined action of bending and torsion. Engineering Structures 30:1677‐ 1687.
- 13 Shi, G.J & Wang, D.Y. 2012. Residual ultimate strength of cracked box girders under torsional loading. Ocean Engineering43:102‐112.
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- 15 Okawa, T et al. 2006. Simulation‐based fatigue crack management of ship structural details applied to longitudinal and transverse connections. Marine Structures19:217‐240.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-425c1c7b-140d-44ca-a784-9fb519b0e09b