The skin is a dynamic organ whose complex material properties are capable of withstanding continuous mechanical stress while accommodating insults and organism growth. Moreover, synchronized hair cycles, comprising waves of hair growth, regression and rest, are accompanied by dramatic fluctuations in skin thickness in mice. Whether such structural changes alter skin mechanics is unknown. Mouse ...

Resilient modulus of pavement materials is a key property required for the pavement thickness design. This paper describes the results of an experimental study on the effects of temperature and loading frequency on the resilient modulus of a SBS polymer modified asphalt concrete under dry and saturated conditions. Dynamic creep tests were conducted on dry and saturated specimens of the mixture ...

The modulus of elasticity Youngs modulus E is a material property, that. From the Hooks law the modulus of elasticity is defined as the ratio of the stress to.modulus of elasticity of the cultured SC cells examined in this study, in central, non-nuclear regions, ranged between. Johnson B.all require an effective E, the Youngs modulus or elastic modulus, to quantify. Elastic moduli, such as the ...

Deformation modulus of rock mass has a significant role in the support design of an underground excavation. It is determined by expensive in-situ tests or by empirical models. Existing models for estimation of deformation modulus do not consider its stress dependence. Herein, data from several sources is used to develop a stress- (depth-) dependent relation for estimation of deformation modulus...

Bone mass is the most important determinant of the mechanical strength of bones and spatial structure is the second. In general the spatial structure and mechanical properties of bones such as the breaking strength are directional dependent. The Mean Intercept Length (MIL) and Line Frequency Deviation (LFD) are two methods for quantifying directional aspects of the spatial structure of bone. Th...

In recent years a significant interest has been devoted to boron nitride nanotubes (BNNTs) due to their intriguing physical properties, which make them a possible alternative to their carbon brethren in regards to possible applications [1,2,3]. However, in contrast to CNTs for which many studies have been focused in their properties, including the mechanical ones, there are almost no data for B...

In this study, using the Molecular Dynamics (MD) simulation method, effects of tensie stress applied to Fe nano wire along direction [100] for different temperatures and strain rates were tried be determined. The stress-strain curve, Young’ s modulus, yield plastic deformation model system under tensile investigated. Embedded Atom Method (EAM), which includes many body interactions, was used de...

A newly developed ultrasound method that acquires at the same time both reflected and transmitted P-waves, different angles, using two immersion transducers of 0.5 MHz central frequency, is described in this present study. This non-destructive allows calculating longitudinal transverse velocities, thus, Young modulus, so its evolutions followed domain. The closely correlation between evolution ...