JSME International Journal Series A Solid Mechanics and Material Engineering
Online ISSN : 1347-5363
Print ISSN : 1344-7912
ISSN-L : 1344-7912
An Experimental Study on the Effect of Curvature-Rate at Preloading Stage on Subsequent Creep or Relaxation of Thin-Walled Tubes under Pure Bending
Wen-Fung PANChun-Huei FAN
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1998 Volume 41 Issue 4 Pages 525-531

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Abstract

Pure bending with a constant curvature-rate followed by creep(hold constant moment for a period of time)or relaxation(hold constant curvature for a period of time)tests were conducted to investigate the effect of prior curvature-rate at preloading stage on the subsequent creep of relaxation behavior. Thin-walled tubes of 304 stainless steel were used in this investigation. The curvature-ovalization measurement apparatus, designed by Pan et al.(1) was used for conducting the present experiments. It has been found that the curvature-rate at the preloading stage has a strong influence on the subsequent creep or relaxation deformation under pure bending.

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© The Japan Society of Mechanical Engineers
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