叠加原理
流变学
放松(心理学)
材料科学
振幅
应变率
拉伤
软质材料
应力松弛
时间-温度叠加
机械
物理
复合材料
光学
纳米技术
量子力学
蠕动
内科学
心理学
社会心理学
医学
作者
Hans M. Wyss,Kunimasa Miyazaki,Johan Mattsson,Zhibing Hu,David R. Reichman,David A. Weitz
标识
DOI:10.1103/physrevlett.98.238303
摘要
The rheological properties of soft materials often exhibit surprisingly universal linear and nonlinear features. Here we show that these properties can be unified by considering the effect of the strain-rate amplitude on the structural relaxation of the material. We present a new form of oscillatory rheology, strain-rate frequency superposition (SRFS), where the strain-rate amplitude is fixed as the frequency is varied. We show that SRFS can isolate the response due to structural relaxation, even when it occurs at frequencies too low to be accessible with standard techniques.
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