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Characteristics Of Fibrous Tissue At High Rates Of Tensile Loading, Benjamin J. Claus
Characteristics Of Fibrous Tissue At High Rates Of Tensile Loading, Benjamin J. Claus
Open Access Theses
The mechanical behavior of fibrous tissue is generally characterized at very low strain rates. However, many injuries occur at high rates of loading, such as those encountered in sporting events or vehicle accidents. An understanding of injury behavior requires the injury process to be recorded at high strain rates. Even at low rates of loading, the injury/failure within tissues occurs quickly. Furthermore, using conventional imaging systems, the surface of a specimen may be well documented throughout an experiment. However, damage formation does not necessarily begin at the surface of the specimen or even on the surface exposed to a camera. …
Biaxial Shear/Tension Failure Criteria Of Spectra Single Fibers, Jianzhuo Sun
Biaxial Shear/Tension Failure Criteria Of Spectra Single Fibers, Jianzhuo Sun
Open Access Theses
An experimental study was conducted to develop the biaxial failure surface criteria of single Spectra 130d and 100d filaments in a torsion-tension environment. The cross-sectional profiles of single Spectra fibers were investigated using scanning electron microscopy and X-ray computed tomography. A pin-gripping method to fix the ends of a polyethylene single fiber was developed. Effects of pin diameter on failure stress for both Spectra 130d and 100d were characterized. It was found that the perturbed stress field effect can be neglected when the pin diameter is larger than 0.8 mm. Additionally, the effect of the sample's gage length on fiber …