Geofluids / 2020 / Article / Fig 5

Research Article

Features and Constitutive Model of Gypsum’s Uniaxial Creep Damage considering Acidization

Figure 5

Loading methods for creep tests. (a) One-stage loading. (b) Multistage monotonic loading. (c) Multistage cyclic loading. (d) Specific loading methods of stress at various levels.
(a)
(b)
(c)
(d)

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