抄録
This paper describes two new types of material test system. One is a Ultra High Cycle Fatigue System. This system makes it possible to confirm a fatigue limit at short time by spending a repeat load on metallic material at the high frequency (lOOOHz), and this system to have made realistic the confirm to the 10^8, 10^9cycle area. Another is a compact High Speed Material Test System, which is designed to measure the stress-strain relation of materials over a wide range of strain-rate from quasi-deformation to dynamic deformation up to 10^3s^<-1>. By changing the attachments for specimens tensile test as well as compression test can be carried out.