Bending properties of GCr15 steel guide rail under the multi-step loading |
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Authors: | Hong Lu He Ling Jae-Youn Jung Xiao Zhang Changqiao Guo |
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Affiliation: | (1) Laboratory of Forest Ecology, Graduate School of Agriculture, Kyoto University, Japan;(2) Osaka City Institute of Public Health and Environmental Sciences, Japan;(3) Present address: Department of Forest Entomology, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan |
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Abstract: | To analyze the bending properties of GCr15 steel guide rail based on the elastic-plastic theory, the novel bending loading
method consisting of multi-step loading and corresponding unloading was applied in three specimens with different cross section
shape and different heat treatment condition. According to the experimental results, using numerical calculation software
program and the numerical simulation with finite element analysis (FEA), the relationships among the maximal load and displacement
on cross section shape with each step bend loading, the loading stroke with the heat treatment condition, and the loading
stroke with cross section shape were gained, and also those curves were discussed qualitatively. Finally, the contrast results
between the numerical simulation and experiment were carried out to study the influence about the multi-step loading on specimen.
It is put forward that enlightenment for the straightening stroke in the precision linear guide rail manufacture process. |
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