The results show that in traditional aging temperature, the stress relaxation curve of 7050 aluminum alloys exhibits a classical logarithmic decrementcurve.
结果表明：时效温度范围内7050铝合金的应力松弛曲线表现为典型的对数衰减曲线。
2
The logarithmic decrement of the cable is then calculated from the free decay curve of the displacement data.