A crystal plasticity-based constitutive model is developed to describe the thermomechanical behavior of pseudoelastic NiTi single crystal. The includes, for first time in literature, all inelastic mechanisms influencing fatigue SMAs a finite strain framework: martensite transformation, deformation slip austenite at high-temperature, twinning large strain, transformation-induced plasticity (TRIP...

concrete shear walls are the most prevalent structural systems resisting lateral loads due to earthquakes in high-rise buildings. very large in-plane stiffness of shear walls provides an excellent drift control in the structure. however, structural damages and early code shortcomings threaten the efficiency of existing structural walls against earthquake. recently, fiber reinforced polymer (frp...

For metals under fatigue, microplastic strain localisation leads to the formation of discrete slip bands, which contributes initiation and propagation short cracks. In this paper, a band model is introduced investigate slip-controlled cyclic deformation crack growth in single crystal alloy. conjunction with plasticity normal factor-based critical resolved shear stress, finite element simulation...

The coupled damage/plasticity model for meso-level which is ply-level in case of Uni-Directional (UD) Fiber Reinforced Polymers (FRPs) is implemented. The mathematical formulations, particularly the plasticity part, are discussed in a comprehensive manner. The plastic potential is defined in effective stress space and the damage evolution is based on the theory of irreversible thermodynamics. T...

background sildenafil (viagra) has been introduced to treat erectile dysfunction by acting as phosphodiesterase 5 inhibitor and hence accumulation of guanosine cyclic monophosphate (cgmp). on the other hands, the nitric oxide/cgmp signaling pathway has crucial role in synaptic plasticity processes like long-term potentiation (ltp) in the central nervous system considered as a model of learning ...

Strain gradient plasticity has been the subject of extensive research in past 40 years order to model size effects metal plasticity, on one hand, and provide finite width shear bands simulation localization phenomena, other hand. However, use emerging models is still limited academic applications not yet adopted by industry practitioners. The present paper systematically reviews pros cons at st...