Many studies have delineated the changes in the elastic properties of arterial tissue as a function of age. Despite the fact that viscoelasticity is a prominent feature of these tissues, there is little information or characterization of age-associated changes in viscoelastic properties, over a wide range of smooth muscle activation, particularly in nonhuman tissue where atherosclerosis is not ...

A variational discrete element method is applied to simulate quasi-static crack propagation. Cracks are considered propagate between the mesh cells through facets. The elastic behaviour parametrized by continuous mechanical parameters (Young modulus and Poisson ratio). energetic cracking criterion coupled a kinking guide process. Two-dimensional numerical examples presented illustrate robustnes...

Dynamic modulus characterizes the viscoelastic behavior of asphalt materials and is the most important input parameter for design and rehabilitation of flexible pavements using Mechanistic–Empirical Pavement Design Guide (MEPDG). Laboratory determination of dynamic modulus is very expensive and time consuming. To overcome this challenge, several predictive models were developed to determine dyn...

In the current paper, finite element method is employed for numerical simulations and the study of influential parameters on elastic modulus of polymer-matrix nano-composites. Effects of different key parameters including particle elastic modulus, interphase elastic modulus, matrix elastic modulus, interphase thickness and particle volume fraction on total elastic modulus of nano-composite mate...

Young modulus and toughness (KIC) of bulk solar grade silicon (SoG-Si) obtained by directional solidification metallurgical were determined. The was measured the technique impulse excitation vibration KIC determined using indentation method. Measurement values agree well with those available in literature. method proved to be a reliable, relatively simple, inexpensive, fast experimental measure...

PURPOSE To evaluate and compare the performance of shear-wave elastography (SWE) for breast masses using the local shear wave speed (m/sec) vs. Young modulus (kPa). METHODS A total of 130 breast lesions in 123 women who underwent SWE before ultrasound- guided core needle biopsy or surgical excision were included. With the region-of-interest placed over the stiffest areas of the lesion on SWE,...