Nowadays, equal channel angular pressing, known as the ECAP process, is one of the most popular methods for manufacturing ultra-fine grained (UFG) materials. In this paper, Ecap process has been carried out on pure copper and 6012 aluminum alloy up to six passes by route . Principal attention was paid to the influence of parameters such as diameter, material, and the height of billet on mechani...

Introduction Postnatal Lung Development Normal Development Abnormal Development Models of Induce Postnatal Lung Growth Increased Metabolic Oxygen Demand Increased Mechanical Lung Strain Reduced Size (Lobar) Lung Transplant Chronic Hypoxia or High-altitude Exposure Extracellular Matrix and Elastic Fibers Signals and Mediators of Induced Lung Growth Mechanical Signals Nonmechanical Signals and Me...

Wepresent results from laboratory experiments and anumericalmodel for frictional weakening and shear localization. Experiments document strain localization in sheared layers at normal stresses of 0.5 to 5MPa, layer thicknesses of 3 to 10mm, and imposed slip velocities of 10 to 100 μm/s. Passive strain markers and the response to load perturbations indicate that the degree of shear localization ...

[1] A method is presented to calculate the continuum-scale sea ice stress as an imposed, continuum-scale strain-rate is varied. The continuum-scale stress is calculated as the areaaverage of the stresses within the floes and leads in a region (the continuum element). The continuum-scale stress depends upon: the imposed strain rate; the subcontinuum scale, material rheology of sea ice; the chose...

Granular materials whether dry or immersed in fluid show dilation compaction depending upon the initial conditions, solid fraction and normal stress. Here we probe transient response of a dense granular suspension subjected to change applied stress under simple shear. In this aim, normal-stress-imposed discrete element particle simulations are developed considering contributions arising from dr...