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Skip to Search Results- 8Deformation
- 8Digital Image Correlation
- 2Archwire
- 2Bracket
- 2Digital image correlation
- 2Finite Element Analysis
- 7Melenka, Garrett W.
- 6Carey, Jason P.
- 5Nobes, David S.
- 4Major, Paul W.
- 2Lacoursiere, Ryan A.
- 1Hartman, Sharlene E.
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An investigation of the strain field and inter-fragmentary movement of a broken hemi-pelvis
DownloadFall 2015
Pelvic fracture is considered a common and sometimes fatal injury. There are still developments in novel pelvic fixations. In order to investigate the performance of these fixations, a specialized testing set-up is required. Typically, the strains of a few selected points and the changes in the...
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Characterising Three Dimensional Deformations and Strains of Orthodontic Archwires under Torsion
DownloadFall 2020
In orthodontics, braces are commonly used to correct dental misalignments. Third-order torque refers to the application of torsion to correct angular inclinations of teeth. Its application involves the use of a twisted archwire inside of an orthodontic bracket to generate the required forces and...
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Comparison of Deformation and Torque Expression of the Orthos and Orthos Ti Bracket Systems
Download2011
Major, Paul W., Melenka, Garrett W., Carey, Jason P., Nobes, David S., Heo, Giseon, Lacoursiere, Ryan A.
Orthodontic torque expression is the result of axial rotation of rectangular archwires within a rectangular bracket slot. This study investigates the effect of bracket material on torque expression. Torque exerted by a rotating archwire on each bracket will be measured as well as the relative...
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2013
Major, Paul W., Melenka, Garrett W., Nobes, David S., Carey, Jason P.
The design and testing of an orthodontic torque simulator that reproduces the effect of archwire rotation on orthodontic brackets is described. This unique device is capable of simultaneously measuring the deformation and loads applied to an orthodontic bracket due to archwire rotation. Archwire...
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2015
Melenka, Garrett W., Carey, Jason P.
The effect of short fiber reinforcements on the mechanical properties of cement has been examined using a splitting tensile – digital image correlation (DIC) measurement method. Three short fiber reinforcement materials have been used in this study: fiberglass, nylon, and polypropylene. The...
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Investigation of Mechanical Properties, Porosity and Geometric Deviation of Lattice Structures Manufactured by Additive Manufacturing
DownloadSpring 2022
This thesis reports fabrication, mechanical characterization, finite element modeling, and geometric analysis of lattice structures. A net-shaped 316L stainless steel lattice structure composed of diamond unit cells was fabricated by selective laser melting (SLM). The cavities in the lattice...
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Fall 2013
The Crowsnest Pass area, located in the Rocky Mountain foothills of the Canadian Cordillera, provides an exceptional example of a thin-skinned thrust belt from which the deformational history can be determined. Use of LiDAR (light detection and ranging) data, acquired by high-resolution remote...
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Optical Measurement of Directional, Regional, and Strain Rate Dependent Mechanical Properties of Human Brain Tissue under Uniaxial Compression
DownloadSpring 2024
The brain is the most important central nervous system component, consisting of a complex network of neurons and glial cells essential for information processing, movement, and behavior control. While computational models have helped advance the development of diagnostic tools and the...
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The Effect on Elastic Modulus of Rigid-Matrix Tubular Composite Braid Radius and Braid Angle Change Under Tensile Loading
Download2013
Melenka, Garrett W., Leung, Cheequn K., Nobes, David S., Carey, Jason P.
The objective of this paper is to assess changes in braid radius and braid angle of braided composite tubes under tensile loading using stereomicroscope digital image correlation (DIC) based optical measurement techniques. Using this approach, displacement fields were calculated and three...
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2013
Carey, Jason P., Melenka, Garrett W., Nobes, David S., Major, Paul W.
Archwire rotation is used in orthodontic treatment to alter the labiolingual orientation of a tooth. Measurement of the 3-dimensional (3D) motion of the orthodontic brackets requires a new configuration of the orthodontic torque simulator. The orthodontic torque simulator was coupled with a...