... were generated and solved assuming Newtonian liquid properties (viscosity 3.5 mPa s). Post-processing allowed to visualize and quantify the microvascular flow characteristics, to calculate the permeability tensor and corresponding principal permeability axes, as well as the 3D porosity...

... compounds materials preparation porosity porous materials tissue engineering References 1 Elvitigala , T. R. , Polpitiya , A. D. , Wang , W. , Stöckel , J. , Khandelwal , A. , Quatrano , R. S. , Pakrasi , H. , and Ghosh , B. K. , 2010 , “ High...

..., spacing and overlap to be used in the robotic deposition to attain desired elastic moduli and pore size. Here, we define the porosity as φ : = 1 - ρ * , where ρ * is the relative density, which in turn corresponds to the ratio between the volume occupied by the rods...

.... Intra-aneurysmal residence time is found to increase rapidly with decreasing stent porosity. Of the three different implants considered in this study, the one with the highest wire density shows the highest increase of intra-aneurysmal residence time for both the straight and the curved parent vessels...

... parameters, by implanting the virtual scaffold into a finite element algorithm. 17 12 2010 06 05 2011 22 06 2011 22 06 2011 22 06 2011 biodegradable materials biomedical materials finite element analysis polymer blends polymer fibres porosity surgery tissue engineering...

... is important both for the post-treatment mechanical loading and the risk of intraoperative extraosseous leakage. We have developed a computational model that describes the flow of biomaterials in porous bone structures by considering the material porosity, the region-dependent intrinsic permeability...

... and sometimes conflicting functional requirements. A functionally gradient porosity function is used to vary the porosity of the designed scaffolds spatially to mimic the functionality of tissues or organs. The three-dimensional porous structures of the scaffold are geometrically partition into functionally...

... graded materials hydrogels physiological models porosity viscoelasticity biomechanics soft tissues finite element method large strain biphasic Natural soft tissues have an intricate architecture and demonstrate complex mechanical behavior. The purpose of this paper...

..., the displacement field was tracked using 400 nm nanobeads as space markers. The corresponding strain and porosity fields were calculated from the experimental observations. Finally, experimental data were used to validate a computational model for fluid flow and deformation in soft porous media. Our studies...

...Carlos Bonifasi-Lista; Elena Cherkaev; Yener N. Yeni This work deals with the study of the analytical relations between porosity of cancellous bone and its mechanical properties. The Stieltjes representation of the effective shear complex modulus of cancellous bone is exploited to recover porosity...

...Gaffar Gailani; Mohammed Benalla; Rashal Mahamud; Stephen C. Cowin; Luis Cardoso Permeability of the mineralized bone tissue is a critical element in understanding fluid flow occurring in the lacunar-canalicular porosity (PLC) compartment of bone and its role in bone nutrition...

... to fluid flow at the bone/soft tissue interface of the porosities in the bone. biological fluid dynamics bone cellular biophysics physiological models porosity It is generally accepted that bone grows and remodels in response to the requirements of applied loading. If the basic assumption...

... e 0 ( x ) = e ( x , t = 0 ) (ratio of fluid to solid content before deformation). The spatiotemporally varying void ratio e ( x , t ) is related to the porosity of the hydrogel via n ( x , t ) = 1 / 1 + e ( x , t ) ( 43...

... accumulation method was shown to be capable of identifying the clinically inferior THA stem, and it also produced damage patterns that mirrored those seen in vivo. However, much shorter component life was predicted than was measured experimentally. Another theoretical study ( 17 ) found that porosity...

... initial porosity, hydraulic conductivity, and elastic modulus. These results imply that an identical macroscopic freezing protocol may result in different microstructural alterations of poroelastic materials depending on the structural properties of the matrix. This may be relevant to understanding...

... of vascular porosity in osteonal properties. The proposed method is suitable for identification of elastic constants from nanoindentation experiments and could be adapted to other (bio)materials, for which it is possible to describe elastic properties using a fabric-based model. The contribution...

... are presented and fitted. Parameter variation studies for the larger indenter show that for this case the VE and PE time responses overlap in time, necessitating the use of both models. biomechanics bone finite element analysis indentation orthopaedics physiological models porosity viscoelasticity...

... 2 diameter of the specimen, D = 2.5 mm 3 diameter of the indenter, d = 1.0 mm 4 porosity of the specimen, φ f = 0.8 5 Lamé constants, λ = 0.1 MPa and μ = 0.2 MPa 6 hydraulic permeability of the specimen, κ = 0.75...

... in a large cohort of animals. The aim of this study is to provide a detailed database against which in vivo results can be analyzed. Six custom designed flow divertors were fabricated and tested in vitro. The design matrix included three different porosities (75%, 70%, and 65%). For each porosity, there were...