...Yingying Hu; Francesco Romanò; James B. Grotberg We study the effects of surface tension and yield stress on mucus plug rupture. A three-dimensional simplified configuration is employed to simulate mucus plug rupture in a collapsed lung airway of the tenth generation. The Herschel–Bulkley model...

... was obtained through a suitable linear transformation of the stress tensor components to define the properties of the real anisotropic material in terms of a fictitious isotropic solid. A tension-compression yield stress mismatch and a direction-dependent yield stress are allowed for. The constitutive...

... failure (mechanical) finite element analysis Monte Carlo methods prosthetics statistical analysis stress analysis yield stress Improvements in surgical and cement mixing techniques have resulted in increased success rates for cemented hip implants. However, with increased numbers of patients...

... range intended. The compression test results are shown in Fig. 3 , which shows that the compressive yield stress and strain both decrease with increasing strain rate and, as in the tensile tests, the negative linear correlation between yield-point properties and strain rate is good. In contrast...

... the shear-thinning and yield stress properties of blood. The presence of hemoglobin is also considered. Far from the cylinder, a pulsatile blood flow in the x direction is prescribed, represented by a time periodic (sinusoidal) component superimposed on a steady velocity. The dimensionless parameters...

...Hideyuki Kimpara; Masami Iwamoto; Isao Watanabe; Kazuo Miki; Jong B. Lee; King H. Yang; Albert I. King The mass density, Young’s modulus ( E ) , tangent modulus ( E t ) , and yield stress ( σ y ) of the human ribs, sternum, internal organs, and muscles play important roles when determining impact...

... lifelong oral anticoagulation therapy. cardiology biomedical ultrasonics artificial organs haemodynamics shear turbulence yield stress velocity measurement leak detection ultrasonic transducers 05 September 2002 01 October 2003 09 03 2004 Contributed...

... the interspecimen heterogeneity in yield stresses and strains. Two specimens were further analyzed to determine the yield properties for a wide range of biaxial strain loading conditions. The locations and quantities of tissue level yielding were compared for on-axis, transverse, and biaxial apparent level yielding...