The model of the lung as an elastic continuum undergoing small distortions from a uniformly inflated state has been used to describe many lung deformation problems. Lung stress-strain material properties needed for this model are described by two elastic moduli: the bulk modulus, which describes a uniform inflation, and the shear modulus, which describes an isovolume deformation. In this study ...

As shown three decades ago, in situations where the initial stresses before buckling are not negligible compared to the elastic moduli, the geometrical dependence of the tangential moduli on the initial stresses must be taken into account in stability analysis, and the stability or bifurcation criteria have different forms for tangential moduli associated with different choices of the finite st...

T. Oida, Y. Kang, T. Azuma, J. Okamoto, A. Amano, L. Axel, O. Takizawa, S. Tsutsumi, T. Matsuda Graduate School of Informatics, Kyoto University, Kyoto, Kyoto, Japan, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Kyoto, Japan, Siem ens-Asahi Medical Technologies Ltd., Shinagawa-ku, Tokyo, Japan, Department of Radiology, New York University School of Medicine, New York, New Y...

We calculate elastic moduli and viscosities for media containing strongly interacting in-plane shear cracks. The cracks are randomly oriented or aligned, with equal length or a logarithmic size distribution. Our results from both a boundary element and a finite-element method suggest that the average moduli are best approximated by a differential, self-consistent model (DEM). Thus crack-tocrack...

Introduction Patient specific modelling (PSM) of abdominal aortic aneurysm (AAA) aims to predict rupture risk by calculating the peak stress acting on the AAA wall using finite element analysis (FEA). It is hypothesised that magnetic resonance elastography (MRE), a non-invasive technique measuring material properties, can improve PSM by allowing integration of patient specific properties into t...

In this study, the effect of basil seed gum (BSG) on the stability and rheological properties of egg white albumin (EWA) emulsions was investigated. A constant amount of EWA (0.5% w/v) and different concentrations of BSG (0-0.3% w/v) were used for the manufacture and stabilization of oil-in-water emulsions (30% w/w). The results showed that by increasing BSG concentration, the storage (21 days)...

The single-crystal elastic moduli of San Carlos olivine, (Mg0.9Fe0.1)2SiO4, were determined at seven pressures between 2.5 and 32.5 GPa by Brillouin spectroscopy in a diamond anvil cell. The unit cell volume was also determined at each pressure (and ambient pressure) by single-crystal X-ray diffraction. The shear elastic moduli exhibit non-linear pressure dependencies. In particular, a non-line...

Understanding the mechanism underlying the behavior of polymer-based nanocomposites requires investigation at the molecular level. In the current study, an atomistic simulation based on molecular dynamics was performed to characterize the mechanical properties of polycarbonate (PC) nanocomposites reinforced with single-walled armchair carbon nanotubes (SWCNT). The stiffness matrix and elastic p...