X.P. Zhang

TL;DR: In this paper, the effect of plasticity on stress-induced martensite transformation was studied using a constitutive model that combines phase transformation and plasticity, and a constraint equation was introduced to quantify the phenomenon of the stabilisation of stabilised plasticity.

TL;DR: In this paper, the effect of phase-transformation-induced volume contraction on the fracture properties of superelastic shape memory alloys (SMAs) was studied and a simple model was employed to account for the forward and reverse phase transformation with pure volume change, which was then applied to numerically study the transformation field near the tip of a tensile crack.

TL;DR: In this paper, a new fatigue crack growth model was proposed to characterize short-fatigue crack growth behavior, through combining the mechanisms of both plasticity-induced crack closure and fracture surface roughness induced crack closure, and the results obtained using this proposed model show good agreement with the analytical predictions of Budiansky-Hutchinson's complex function-analytical solution.

TL;DR: In situ scanning electron microscope observations of short crack growth in both a poly-crystal and a singlecrystal alloy revealed that fatigue cracks may grow in a shear decohesion mode over a length that is several times the grain size, far beyond the conventional stage 1 regime.

TL;DR: In this paper, the authors present a quantitative characterisation of the wake closure/opening behavior of microstructurally short fatigue cracks under cyclic loading for a structural aluminium alloy 2024-T351 using an in situ SEM fatigue testing system.