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Rans, Calvin
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Publications (4/4 displayed)
- 2022Mechanisms of fatigue crack initiation and propagation in auxetic meta-biomaterialscitations
- 2022Measurement of damage growth in ultrasonic spot welded joint
- 2021The influence of grit blasting and UV/Ozone treatments on Ti-Ti adhesive bonds and their durability after sol-gel and primer applicationcitations
- 2021Fatigue performance of auxetic meta-biomaterialscitations
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document
Measurement of damage growth in ultrasonic spot welded joint
Abstract
Ultrasonic spot welding is a joining technique for thermoplastic composites with great potential regarding processing speed and cost. To investigate the damage tolerance and possible inherent damage arresting behavior of multi-spot welded joints, a technique is necessary to measure damage growth in the joints under cyclic loading. Visual inspection is not possible because the damage is not located on the outside surface and conventional techniques such as C-scan are not practical during a fatigue test because the specimen would have to be removed from the setup. This paper details a methodology for quantifying damage growth rates in singlespot welded joints using surface strain measurements made by Digital Image Correlation. This represents the first step towards developing a methodology for quantifying damage progression behavior in complex multi-spot welded joints.