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Showing 1 to 20 of 100 for “"trabecular bone"”.
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Trabecular bone remodeling around implants
Thesis (Ph. D.)--Massachusetts Institute of Technology, Harvard-MIT Division of Health Sciences and Technology Program in Medical Engineering and Medical Physics, 1986.
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Microdamage accumulation in bovine trabecular bone
When bone is loaded beyond its failure point, it develops damage in the form of microcracks. Normally, microcracks are repaired by the remodeling process, limiting the number of in vivo microcracks. However, if the rate of microdamage accumulation increases or the rate of remodeling slows, …
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Structure and dynamic properties of trabecular bone.
Massachusetts Institute of Technology. Dept. of Metallurgy and Materials Science. Thesis. 1972. Ph.D.
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Material Differences in Equine Cortical and Trabecular Bone
<p>A greater understanding of bone materials would be beneficial in creating more accurate computer models and in the making of biomedical products involving bone. This study set out to determine whether cortical and trabecular bone are two separate materials, or whether they are the same material …
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Analysis of trabecular bone mechanical properties from magnetic resonance images
Bone mineral density (BMD) measured by dual energy x-ray absorptiometry (DXA) is often used in the clinical diagnosis of bone disorders such as osteoporosis. However, several studies have shown that measuring BMD alone does not provide sufficient discrimination between individuals with and without …
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Ontogeny and functional adaptation of trabecular bone in the human foot
Trabecular bone forms the internal scaffolding of most bones, and consists of a microscopic lattice-like structure of interconnected bony struts. Experimental work has demonstrated that trabecular bone adapts its structural rigidity and orientation in response to the strains placed upon the …
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On the rate-dependent constitutive response of cortical and trabecular bone
… major constituents of the skull: cortical and trabecular bone. The mechanical behavior of these two materials over a wide range of strain rates is identified through both a review of the existing literature data and our own experimental investigations. For the behavior of compact bone two …
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Optimal Parameter Values for Accurate and Repeatable Nanoindentation of Human Trabecular Bone
… techniques have not been standardized for use on bone tissues, making comparison of bone material properties obtained via nanoindentation across studies difficult and unreliable. This study determined a set of optimal parameter values for thermal drift correction time, dwell time, and loading rate …
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Finite element analysis of porcine trabecular bone based on micro-CT images
Made available in DSpace on 2015-07-22T22:46:09Z (GMT). No. of bitstreams: 2 JIN-THESIS-2015.PDF: 1428319 bytes, checksum: 90863a291e31979ea5abb92bf4aa2a16 (MD5) LICENSE.txt: 4205 bytes, checksum: 292729d61405bbb82bd379fc9a6f9b47 (MD5) Previous issue date: 2015-05-01
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Compressive high cycle at low strain fatigue behavior of bovine trabecular bone
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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An investigation of the high cycle fatigue behavior of bovine trabecular bone
… fragility. Fatigue loading causes microdamage in bone that leads to both a loss of stiffness and strength. Some engineering materials, such as steels, have a fatigue limit, which is represented by a stress plateau in the stress-life (S-N) curve. When loaded to levels below the stress plateau, …
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Computational modeling of trabecular bone in lower extremity injuries due to impact
… for a substantial number of lower extremity bone fractures. The Army Research Laboratory (ARL) concentrates part of its research efforts into better understanding impact related injuries. Despite a significant number of articles on bone mechanical behavior, only a few consider high strain …
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Numerical Study of Nutrient Mixing in Trabecular Bone in Microgravity, Disuse and Normogravity
<p>Mechanical loading is known to regulate bone remodeling by driving interstitial fluid flow which stimulates cells and drives nutrient transport within the trabecular network. In microgravity, the absence of mechanical stimulation or loading suppresses convective flow processes, causing …
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Noninvasive prediction of failure in trabecular bone with simulated regularly shaped lyptic defects
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Structure-property relations of porcine trabecular bone and micro-CT imaging of various materials
… characterization of materials with a focus on trabecular bone. In the first part, we aim to find relations between morphological measures of trabecular bone and its Young’s modulus and ultimate compressive strength. Previous research has showed that apparent density and porosity are the main …
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Performance of microstructural finite element models in predicting the effective modulus of trabecular bone
Trabecular bone is made up of an irregular, interconnecting framework of rod- and plate-like struts [1], therefore the mechanical properties of the bone may only be determined through experimental testing or detailed Finite Element modelling. Experimental testing requires a sample to be removed …
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Multi-objective topology optimization for trabecular bone-like structure: role of stability and surface area
… of replicating the intricate structure of the trabecular bone. Inclusion of surface area maximization is necessary for reducing member sizes and generating a sufficient number of voids, but only with the addition of the stability considerations do significant non-vertical features in the …
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High strain rate mechanical characterization of trabecular bone utilizing the split-Hopkinson pressure bar technique
… pressure bars) to the characterization of trabecular bone. A preliminary study is conducted on a polyurea (PU) blend to assess the advantages and shortcomings of these approaches, as well as to validate the results obtained with each. Bovine trabecular bone with marrow in-situ, which was …
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The Ability of Bone Mineral Density and Microstructural Indices to Reflect Mechanical Properties of Trabecular Bone
… microstructural and biomechanical properties of trabecular bone in the intertrochanteric region (2) investigate contribution of bone mineral density (BMD) and microstructure of trabecular bone to predicting its mechanical property, i.e., elastic modulus, and (3) determine if the prediction of …
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