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工况	加载频率f/Hz	初始有效围压σ'_c/kPa	循环应力比CSR
T1	1	50	0.18
T2	1	100	0.15
T3	1	100	0.18
T4	1	100	0.21
T5	1	150	0.18
T6	1	150	0.21

方程	Cross触变性流体模型^[15]	TEPP模型^[16]	MTEPP模型（本文提出）
状态方程	$ \tau = ({\eta _\infty } + a\lambda ) \cdot \dot \gamma $	$ \tau = [{\eta _\infty } + ({\eta _0} - {\eta _\infty }) \cdot (1 - {r_{\text{u}}})]\dot \gamma $	$ \tau = {\eta _0}{\text{e}^{ - {\text{e}^{\left[ { - k\left( {\left( {1 - {r_{\text{u}}}} \right) - \left( {1 - {r_{{\text{u,c}}}}} \right)} \right)} \right]}}}} \cdot \dot \gamma $
速率方程	$ {\text{d}}\lambda /{\text{d}}t = b(1 - \lambda ) - c\lambda {\dot \gamma ^n} $	$ {\text{d}}(1 - {r_{\text{u}}})/{\text{d}}t = - c(1 - {r_{\text{u}}})\dot \gamma $	$ \text{d}(1-{r}_{\text{u}})/\text{d}t=-c(1-{r}_{\text{u}})\dot{\gamma }\text{ }\left(c=\left\{\begin{array}{c}{c}_{1}（\text{stage1}）\text{ }\\ {c}_{2}（\text{stage2}）\text{ }\\ {c}_{3}（\text{stage3}）\text{ }\end{array}\right.\right) $
表观黏度	$ \eta {\text{ = }}{\eta _\infty } + a\lambda $	$ \eta {\text{ = }}{\eta _\infty } + ({\eta _0} - {\eta _\infty })(1 - {r_{\text{u}}}) $	$ \eta {\text{ = }}{\eta _0}{\text{e}^{ - {\text{e}^{\left[ { - k\left( {\left( {1 - {r_{\text{u}}}} \right) - \left( {1 - {r_{{\text{u,c}}}}} \right)} \right)} \right]}}}} $