Buckling failure of 310 stainless steel tubes with different diameter-to-thickness ratios under cyclic bending

Chang, Kuo-Hao; Lee, Kuo Long; Pan, Wen Chi

doi:10.12989/scs.2010.10.3.245

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…Experiments and theoretical studies have been carried out on smooth tubes of various materials, such as 304 stainless steel, 310 stainless steel, 316L stainless steel, and titanium alloy pipes (ASTM B338 Grade 2). The following behaviors were studied: tubes under cyclic bending (Hsu et al 24 ; Chang and Pan 25 ), tubes under cyclic bending with different curvature rates (Pan and Her 26 ; Lee and Pan 27 ; Chang et al 28 ), tubes with different D o /t ratios under cyclic bending (Lee et al 29 ; Lee et al 30 ; Chang et al 31 ), tubes under cyclic bending with different mean curvatures (Pan and Lee 32 ), tubes under cyclic bending with different mean moments (Chang et al 33 ), and tubes under pure bending creep (Lee and Pan 34 ).…”

Section: Introductionmentioning

confidence: 99%

Mean curvature effect on the response and failure of round-hole tubes submitted to cyclic bending

Lee

Tsai

Pan

2021

Advances in Mechanical Engineering

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This paper presents an experiment and analysis to investigate the response and failure of 6061-T6 aluminum alloy round-hole tubes with different hole diameters of 2, 4, 6, 8, and 10 mm subjected to cyclic bending at different curvature ratios of −1.0, −0.5, 0.0, and +0.5. The curvature ratio is defined as the minimum curvature divides by the maximum curvature. Four different curvature ratios are employed to highlight the mean curvature effect. It can be seen from the experimental results that the moment-curvature relationships gradually relax and become steady states after a few bending cycles for curvature ratios of −0.5, 0.0, and +0.5. The ovalization-curvature relationship depicts an asymmetrical, ratchetting and increasing as the number of bending cycles increases for all curvature ratios. In addition, for each hole diameter, the relationships between the curvature range and the number of bending cycles necessary to initiate failure on double logarithmic coordinates display four almost-parallel straight lines for four different curvature ratios. Finally, this paper introduces an empirical formula to simulate the above relationships. By comparing with experimental results, the analysis can reasonably describe the experimental results.

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Section: Introductionmentioning

confidence: 99%

Mean curvature effect on the response and failure of round-hole tubes submitted to cyclic bending

Lee

Tsai

Pan

2021

Advances in Mechanical Engineering

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“…The 304 stainless steel smooth tubes with four different D o /t ratios of 30, 40, 50 and 60 were tested under cyclic bending. Later, Chang et al [19] studied the buckling failure of 301 stainless steel smooth tubes with different D o /t ratios subjected to cyclic bending. In 2012, Lee et al [20] started to investigate the influence of the D o /t ratio on the response and failure of sharpnotched 304 stainless tubes subjected to cyclic bending.…”

Section: Introductionmentioning

confidence: 99%

The Failure of Local Sharp-Dented 6061-T6 Aluminum Alloy Tubes With Different Diameter-to-Thickness Ratios Under Cyclic Bending

Lee

Lin

Pan

2018

The International Conference on Applied Mechanics and Mechanica

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In this study, the failure of local sharp-dented 6061-T6 aluminum alloy tubes with different diameter-to-thickness ratios submitted to cyclic bending are investigated. Different diameter-to-thickness ratios of 16.5, 31.0 and 60.0 were considered. The dent depths of tubes were considered from very small to approximately 0.6 times the tube's wall thickness. From the experimental ovalization-curvature relationship, it exhibited an increasing and ratcheting manner when the number of cycles increased. The larger dent depth led to more asymmetrical ovalization-curvature relationship and the greater increase of the ovalization. Furthermore, for a certain diameter-tothickness ratio, five unparallel straight lines corresponding to five different dent depths were found for the controlled curvature-number of cycles required to produce failure relationship on a log-log scale. Finally, a theoretical model was proposed for simulating the aforementioned relationship. Through comparison with the experimental data, the theoretical model can properly simulate the experimental findings.

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“…Due to the great progress in computation speed and great improvement in the theory describing the elastoplastic response in finite element method in recent years, the accuracy of calculation by finite element method has become better [4][5][12][13]. In this study, by considering adequate stress-strain relationships, mesh elements, boundary conditions and loading conditions, the finite element software ANSYS is used to analyze the response of circular tubes subjected to cyclic bending with or without external pressure.…”

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confidence: 99%

Finite Element ANSYS Analysis of the Behavior for 6061-T6 Aluminum Alloy Tubes under Cyclic Bending with External Pressure

Lee¹,

Chung²,

Pan³

2014

JCEA

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Abstract:In this paper, by using adequate stress-strain relationship, mesh elements, boundary conditions and loading conditions, the finite element ANSYS analysis on the behavior of circular tubes subjected to symmetrical cyclic bending with or without external pressure is discussed. The behavior includes the moment-curvature and ovalization-curvature relationships. In addition, the calculated ovalizations at two different sections, middle and right cross-sections, are also included. Experimental data for 6061-T6 aluminum alloy tubes subjected to cyclic bending with or without external pressure were compared with the ANSYS analysis. It has been shown that the analysis of the elastoplatic moment-curvature relationship and the symmetrical, ratcheting and increasing ovalization-curvature relationship is in good agreement with the experimental data.

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Buckling failure of 310 stainless steel tubes with different diameter-to-thickness ratios under cyclic bending

Cited by 6 publications

References 23 publications

Mean curvature effect on the response and failure of round-hole tubes submitted to cyclic bending

Mean curvature effect on the response and failure of round-hole tubes submitted to cyclic bending

The Failure of Local Sharp-Dented 6061-T6 Aluminum Alloy Tubes With Different Diameter-to-Thickness Ratios Under Cyclic Bending

Finite Element ANSYS Analysis of the Behavior for 6061-T6 Aluminum Alloy Tubes under Cyclic Bending with External Pressure

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