Study on the Strength and Failure Characteristics of Silty Mudstone Using Different Unloading Paths.

Both the residual stress and strain exhibited a decreasing trend with increasing initial deviatoric stress.

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The elastic modulus demonstrated a notable trend of initially increasing and then decreasing with the increase in initial deviatoric stress under unloading confining pressure conditions. 4.3.

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The peak strain and elastic modulus initially demonstrated an increasing trend, followed by a subsequent decline, with an increase in initial deviatoric stress.

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