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Research Papers: Materials and Fabrication

Experimental Investigation Into Creep Buckling of a Stainless Steel Plate Column Under Axial Compression at Extremely High Temperatures

[+] Author and Article Information
Byeongnam Jo

Nuclear Professional School,
The University of Tokyo,
2-22 Shirakata,
Tokai-mura, Ibaraki 319-1188, Japan
e-mail: jo@vis.t.u-tokyo.ac.jp

Koji Okamoto

Nuclear Professional School,
The University of Tokyo,
2-22 Shirakata,
Tokai-mura, Ibaraki 319-1188, Japan
e-mail: okamoto@n.t.u-tokyo.ac.jp

1Corresponding author.

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received February 12, 2016; final manuscript received March 18, 2016; published online August 5, 2016. Assoc. Editor: Haofeng Chen.

J. Pressure Vessel Technol 139(1), 011406 (Aug 05, 2016) (8 pages) Paper No: PVT-16-1021; doi: 10.1115/1.4033155 History: Received February 12, 2016; Revised March 18, 2016

This study aims to investigate the creep buckling behavior of a stainless steel column under axial compressive loading at extremely high temperatures. Creep buckling failure time of a slender column with a rectangular cross section was experimentally measured under three different temperature conditions, namely, 800, 900, and 1000 °C. At each temperature, axial compressive loads with magnitudes ranging between 15% and 80% of the buckling loads were applied to the top of the column, and the creep buckling failure time was measured to examine its relationship with the compressive load. The stainless steel column was found to fail within a relatively short time compared to that of creep deformation under tensile loading. An increase in the temperature of the column was found to accelerate creep buckling failure. The in-plane and out-of-plane column displacements, which respectively, corresponded to the axial and lateral displacements, were monitored during the entire experiment. The creep buckling behavior of the column was also visualized by a high-speed camera. Based on the Larson–Miller parameters (LMP) determined from the experimental results, an empirical correlation for predicting the creep buckling failure time was developed. Another empirical correlation for predicting the creep buckling failure time based on the lateral deflection rate was also derived.

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Figures

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Fig. 1

Geometry and dimensions of the test column

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Fig. 2

Configuration of the creep buckling experiments

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Fig. 3

Examples of the obtained temperature profiles of the test columns as a function of time for the three considered temperature conditions

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Fig. 4

Images of the deformation of the test column during creep buckling testing [10]

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Fig. 5

Typical axial (in-plane) displacement curve under axial compression at 900 °C

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Fig. 6

Typical lateral (out-of-plane) deflection curve under axial compression at 900 °C

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Fig. 7

Intensity plots of the images of the test column during buckling testing

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Fig. 8

Lateral deflection curve against time (a) 800 °C, (b) 900 °C, and (c) 1000 °C

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Fig. 9

Plots of compressive stress against creep buckling failure time (a) on linear axes and (b) on logarithmic axes (solid symbols: buckling stresses and lines: fitting curves)

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Fig. 10

Relationship between the compressive stress and LMP

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Fig. 11

Failure time prediction curves obtained from the LMP (symbols: measured data)

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Fig. 12

Plots of the stress against the minimum deflection rate

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Fig. 13

Failure time prediction curves obtained from the lateral deflection rate (symbols: measured data)

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