نتایج جستجو برای: principal strain

تعداد نتایج: 339607  

Journal: :Journal of the mechanical behavior of biomedical materials 2014
Joshua A Gargac Travis L Turnbull Ryan K Roeder Glen L Niebur

Microdamage accumulates in bone due to repetitive or excessive mechanical loading, and accumulation of damage can lead to an increase in fracture susceptibility. Understanding the stress or strain criterion for damage formation would allow improved predictive modeling to better assess experimental results or evaluate training regimens. Finite element models coupled with three-dimensional measur...

2016
Ravi Sinha Séverine Le Gac Nico Verdonschot Albert van den Berg Bart Koopman Jeroen Rouwkema

Endothelial cells (ECs) are continuously exposed in vivo to cyclic strain and shear stress from pulsatile blood flow. When these stimuli are applied in vitro, ECs adopt an appearance resembling their in vivo state, most apparent in their alignment (perpendicular to uniaxial strain and along the flow). Uniaxial strain and flow perpendicular to the strain, used in most in vitro studies, only repr...

2004
R. W. Ogden

This paper is concerned with determining material parameters in incompressible isotropic elastic strain–energy functions on the basis of a non-linear least squares optimization method by fitting data from the classical experiments of Treloar and Jones and Treloar on natural rubber. We consider three separate forms of strain-energy function, based respectively on use of the principal stretches, ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2008
Peter E Hamlington Jörg Schumacher Werner J A Dahm

Local and nonlocal contributions to the total strain rate tensor S(ij) at any point x in a flow are formulated from an expansion of the vorticity field in a local spherical neighborhood of radius R centered on x. The resulting exact expression allows the nonlocal (background) strain rate tensor S(ij)(B)(x) to be obtained from S(ij)(x). In turbulent flows, where the vorticity naturally concentra...

Journal: :The International journal of oral & maxillofacial implants 1998
S S Huja H Qian W E Roberts T R Katona

Descriptions of the healing and adaptation of endosseous implants have been provided; however, their effects on mechanical parameters such as maximum and minimum principal strains, strain energy density, and maximum shear strain have not been addressed. Three linear, elastic, and partially anisotropic finite element models were generated to simulate the immediate postoperative period, time of p...

Journal: :Transactions of the Japan Society of Mechanical Engineers 1977

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