Creep failure mode and sketch map of step-step fractured rock. by Dengke Yang (842532)

Creep failure mode and sketch map of slow-step fractured rock. by Dengke Yang (842532)

Relationship between axial strain and time curve. by Dengke Yang (842532)

Stress-strain curves under different sizes. by Junxia Zhou (14381598)

Decreasing oxygen saturation with corresponding levels of NLR and D-dimer for understanding the interplay of inflammation. by Narendran Gopalan (110148)

Deviatoric stress-strain curves of numerical samples composed of elongated ellipsoids with different particle morphologies and particle sizes. by Yongfeng Zhu (7361045)

Strain at different positions of the sample. by Zhenhua Wang (426041)

“…Test results indicate that the frozen soft rocks show strain softening characteristics. The stress—strain curve changes from a straight line to a curve as deviatoric stress constantly increases, while it decreases abruptly after the deviatoric stress reaches the peak and is slightly affected by the freezing temperature. …”

stress-strain curves. by Junxia Zhou (14381598)

Positions of AE probes and strain gauges. by Zhenhua Wang (426041)

“…Test results indicate that the frozen soft rocks show strain softening characteristics. The stress—strain curve changes from a straight line to a curve as deviatoric stress constantly increases, while it decreases abruptly after the deviatoric stress reaches the peak and is slightly affected by the freezing temperature. …”

The variation of creep strain with the number of freeze-thaw cycles. by Dengke Yang (842532)

The variation of instantaneous strain with the number of freeze-thaw cycles. by Dengke Yang (842532)

Endocardial and epicardial longitudinal strain and epicardial to endocardial longitudinal strain ratio at different gestational ages [in the square bracket the sample size]. Endoca... by Biagio Castaldi (20673392)

Subjects: “…physiological maturation steps…”

Sample size and span size diagram. by Wen Wang (6570)

“…The samples mainly experience tensile failure, with shear failure as a supplement. Fracture toughness decreased as the angle between the crack and loading direction diminished. …”

On the top, strain rate curves with S, E and A peaks. by Biagio Castaldi (20673392)

Subjects: “…physiological maturation steps…”

The variation of creep strain of rock samples with different dip angles of double fissures with stress level. by Dengke Yang (842532)

The variation of instantaneous strain of rock samples with different dip angles of double fissures with stress level. by Dengke Yang (842532)

Stress-strain curves under different rock bridge angles. by Junxia Zhou (14381598)

Graded loading creep stress loading level. by Dengke Yang (842532)

“…The results reveal that (1) freeze-thaw cycles exert a significant influence on the rock’s creep behavior, with axial strain, instantaneous strain, and creep strain increasing progressively with the number of freeze-thaw cycles; (2) dual-fractured rock samples with varying fracture angles exhibit distinct differences in creep phenomena, where increased fracture angles result in pronounced increases in instantaneous and creep strains, and higher horizontal stress levels lead to greater strain generation; (3) all rock samples with different pre-existing fractures exhibit rock bridge breakthrough during creep failure, and the variation in fracture angle affects the failure mode; (4) and the long-term strength of the rock varies with changes in fracture angle and freeze-thaw cycle frequency, showing an increasing trend with greater fracture angles but a rapid decrease with increasing freeze-thaw cycles. …”

Schematic diagram of rock samples. by Dengke Yang (842532)

“…The results reveal that (1) freeze-thaw cycles exert a significant influence on the rock’s creep behavior, with axial strain, instantaneous strain, and creep strain increasing progressively with the number of freeze-thaw cycles; (2) dual-fractured rock samples with varying fracture angles exhibit distinct differences in creep phenomena, where increased fracture angles result in pronounced increases in instantaneous and creep strains, and higher horizontal stress levels lead to greater strain generation; (3) all rock samples with different pre-existing fractures exhibit rock bridge breakthrough during creep failure, and the variation in fracture angle affects the failure mode; (4) and the long-term strength of the rock varies with changes in fracture angle and freeze-thaw cycle frequency, showing an increasing trend with greater fracture angles but a rapid decrease with increasing freeze-thaw cycles. …”

Rock mechanics testing machine. by Dengke Yang (842532)

“…The results reveal that (1) freeze-thaw cycles exert a significant influence on the rock’s creep behavior, with axial strain, instantaneous strain, and creep strain increasing progressively with the number of freeze-thaw cycles; (2) dual-fractured rock samples with varying fracture angles exhibit distinct differences in creep phenomena, where increased fracture angles result in pronounced increases in instantaneous and creep strains, and higher horizontal stress levels lead to greater strain generation; (3) all rock samples with different pre-existing fractures exhibit rock bridge breakthrough during creep failure, and the variation in fracture angle affects the failure mode; (4) and the long-term strength of the rock varies with changes in fracture angle and freeze-thaw cycle frequency, showing an increasing trend with greater fracture angles but a rapid decrease with increasing freeze-thaw cycles. …”