排水管など自重による挫屈について (第3報)

抄録

In the previous paper, the buckling of a pipe due to its own weight was examined with various lengths, diameters and materials.
Otherwise, the buckling of the pipe supported at the upper end was investigated theoretically and experimentally in this report.
Considering the above condition, the differential equation of the deflection curve of the buckled pipe is showed (1) and this solution is obtained as follows, (2) or (3) where N2=holizontal reaction force R₂=vertical reactionforce n, a₁, a₂=constants
As the equation (3) was suitable for our experimental condition, the deflection of the buckled pipe was calculated by using the equation (3), and authors could obtain satisfactory results that the upper expression was fitted for the above mentioned condition.