@article{oai:niigata-u.repo.nii.ac.jp:00003701,
author = {石橋, 達弥 and 下田, 茂},
issue = {482},
journal = {日本機械学会論文集. A編, 日本機械学会論文集. A編},
month = {Oct},
note = {In order to correlate hardness P_m by the spherical indenter with the flow stress Y, it is necessary to determine the total mean strain of the indentation, which corresponds to the total strain in a uniaxial stress field. Firstly, the total mean strain of the indentation ε_ is defined, by means of multiplying the total corresponding strain coefficient of the indentation C_<εc> by the total profile coefficient of the indentation (d/D_c) at the end of the plastic flow of a specimen ; ε_=C_<εc> (d/D_c). Then Hardness/Flow stress ratio C is obtained experimentally, C=9.8 P_m/Y, Y in MPa, and formulated as follows ; C=1.1+(2/3) ln (ε_・E_s/Y), E_s is the Young's modulus of a specimen. Further, an example of the flow stress-strain characteristic curve of SUS 304 specimen is shown in a wide range of the strain by means of a calculation using this formula and the former reported formula ; P_m=P_(d/D_p)^, etc..},
pages = {2387--2394},
title = {球圧子の押込みによる硬さと変形抵抗との対応},
volume = {52},
year = {1986}
}