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Showing 1 to 13 of 13 for “"Hyper-elastic"”.
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On the uncertainty quantification and non-linear hyper elastic simulation of biological tissues
… mean values of these properties. To this end, a hyper elastic formulation for the nonlinear, transversely isotropic behavior of soft and hard tissue is utilized for the simulation and failure analysis of the proximal femur. Both linear and nonlinear material results are compared. The uncertainty …
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Multi-physics based simulation of hyper elastic soft robot motion with hydraulic actuation
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
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Simulation of micro-shaped charge experiments and analysis of shock states for a hyper-elastic solid
… It also advances on shock states for a hyper-elastic solid using the Blatz-Ko equilibrium relations and general conservation laws. Basic Rankine-Hugoniot relations for longitudinal isotropic motion are determined. To further this topic, a study of anisotropic materials was conducted …
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Theorie und Numerik einer oberflächenorientierten Schalenformulierung
… Within the scope of this thesis an anisotropic hyper elastic constitutive relation is given in order to obtain a first approximation of textile reinforced concrete's material behavior against the background of material theory. Furthermore a specification of the hyper elastic constitutive …
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Accelerating a Coupled SPH-FEM Solver through Heterogeneous Computing for use in Fluid-Structure Interaction Problems
… to simulating free-surface flow interaction with hyper-elastic structures in which a smoothed particle hydrodynamics (SPH) solver is coupled with a finite-element (FEM) solver. SPH is a mesh-free, Lagrangian numerical technique frequently employed to study physical phenomena involving large …
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Design and implementation of a high strain Town rate biaxial tension test for elastomeric materials and biological soft tissue
… 2], and is necessary in order to characterise a hyper-elastic material model[3]. Furthermore, biaxial loading allows one to detect the anisotropy of the sample without introducing noise from inter-sample variability - unlike uniaxial tensile testing. This work develops a high strain rate bulge …
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Analytical and Experimental Investigation of Improving Seismic Performance of Steel Moment Frames Using Synthetic Fiber Ropes
… experimental testing, the ropes exhibited a hyper-elastic loading response and a reduced-stiffness unloading response. A conditioning cycle was defined as a loading cycle induced in the rope above the highest load expected to be experienced by the rope, and was determined to be requisite for …
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The mechanical design aspects of a small diameter vascular prosthesis
… tension tests, simple-shear tests and viscoelastic shear tests. The constitutive equations for a compressible, large strain hyper elastic material model with viscoelasticity are implemented in the finite element code using material constants calculated from the test data. The behaviour of …
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Material and Geometric Analysis of Structures Subjected to Large Deformation
… are: (1) Studying the structural behaviors of hyper-elastic membranes subjected to extremely large deformation. These membranes are used in a reconfigurable tooling system (RTS) which was under development during the course of this study. (2) Establishing a continuum constitutive model for …
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Development of Comprehensive Experimental, Analytical and, Numerical Methods for Predicting Rubber Friction and Wear under Thermomechanical Conditions
Viscoelastic materials have been used widely in different applications, such as constructing tires, artificial joints, shoe heels, and soles. A study on the different characteristics of viscoelastic materials has always been a matter of interest in order to improve their properties for various …
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Understanding human-space suit interaction to prevent injury during extravehicular activity
… kPa resolution. The sensors are constructed from hyper-elastic silicone imbedded with a microfluidic channel. The channel is filled with liquid conductive metal, galinstan, such that an applied pressure corresponds to a change in resistance of the liquid metal. The system of 12 pressure sensors …
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Experimental assessment of the mechanical behavior of immersion joints and a seismic mitigation method in immersed tunnels
… indicating that the rubber seal is not perfectly hyper-elastic material as assumed and energy-dissipation did occur. Moreover, an asymmetric bending behavior was observed as the axial force increased. The static and dynamic behavior of the joint were investigated by imposing static and dynamic …
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Multi-physics Diffuse Interface Methods For Computational Material Modelling
This thesis develops a novel numerical method for computational material modelling that is capable of incorporating a broad range of different materials and physical processes. Specifically, this work uses an Eulerian finite-volume diffuse interface scheme to examine high-Mach-number flows in a …