Nonlinear modulus of rock is function of strain level and strain amplitude.The modulus decays exponentially with ascending of strain amplitude, while increases with strain level increasing.

 
  • 巖石非線(xiàn)性模量既是所受應變水平的函數,也是應變振幅的函數,模量隨應變振幅的增加以指數形式下降,隨應變水平增加以指數形式上升。
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