Automatical measuring system of load-displacement curves including post-failure region of concrete specimens

Wataru KOYANAGI, Keitetsu ROKUGO, Sadatoshi ONO
1985 Doboku Gakkai Ronbunshu  
A stiff testing machine is generally used to measure load-displacement curves having falling branch of concrete specimens. However, when the failure of specimens is unstable (uncontrollable), the stiff testing machine is insufficient to measure the loaddisplacement curves having falling branch. In this paper, the unstable failure of specimens was discussed from viewpoint of catastrophic theory, and a new system to measure automatically the load-displacement curves having falling branch was
more » ... ing branch was proposed. The load-displacement curves of compressive specimens (10 x 20 cm) of high strength concrete and high strength light-weight concrete were measured by the new system.
doi:10.2208/jscej.1985.354_119 fatcat:bk35kqwtyzehfpqid7sxfb45iq