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relationship between the impacting boundary conditions and the time, and the time step for impacting was accurately solved. The Boolean variable B introduced was used to indicate the slipping, sticking......
to the non-linear criterion, which can be fitted by parabolic equation with high correlation coefficient, and the failure mode of joint changes from slipping along joint plane to the compound failure model consisted of slipping failure along joint plane and crushing failure through saw tooth. The ratio of peak strength to the residual strength decreases with the increase of the normal stress......
, the slope potential slip plane moves gradually to the inner place, failure mode of slope changes from shallow slipping to deep slipping, and the slope safety factor increases as well; but when the length......
, decreasing in stage IV with refining grain size is observed probably due to the contribution of grain boundaries slipping. The different hardening behaviors demonstrate the various hardening mechanisms between......
wrinkles occur in the curved regions due to the relative slipping between tube and clamp die. 3) Both the difference of the in-plane compressive stresses and the relative slipping distance are chosen... and not "iron" definitely by the bend die. Otherwise, they only remain in the straight zones. The other mode refers to that the local wrinkles occur in the curved regions due to the relative slipping L......
mechanism of the superalloy during initial creep is the slipping of (1/2) dislocations with single oriented, double oriented and cross-slipping features activated on the octahedral systems in the γ matrix channels. The strain of the alloy increases as the creep enters latter stage, the deformation mechanism of the superalloy is that dislocations slipping in the γ matrix and shearing enter......
during steady state creep are dislocation slipping in γ matrix and climbing over the rafted γ' phase. In the later stage of creep, the deformation mechanism of alloy is dislocation shearing into the rafted γ' phase. As the creep going on, the alternate activation of dislocations slipping resulted in the twisted of rafted γ' phase promotes the initiation and propagation of crack occurring......
to about 200 nm at the depth of 40 μm. The surface nanocrystallization can realize intercoordination of the dislocations slipping and dynamic recrystallization. The nanocrystalline grains have stacking..., the imposed strain is accommodated mainly by dislocation slipping in the matrix with HCP structure, as shown in Fig.2, rather than by deformation twinning as often found in HCP materials. The grain......
. The deformation mechanisms of the alloy during creep at intermediate temperature/higher stress are the dislocations slipping in the matrix and shearing into γ′ phase. Thereinto, significant amount of dislocations with single oriented and double oriented slipping features activated in the γ matrix may hinder dislocation motion due to the effect of deformation strengthening, and the stress field effect......
mechanism of alloy in the later stage of creep is dislocations slipping in γ matrix and shearing into the rafted γ′ phase, wherein, the alternate activation of the primary/secondary slipping dislocations......
