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Full-Text Articles in Automotive Engineering
Mechanical Characterization And Shear Test Comparison For Continuous-Fiber Polymer Composites, Matthew Crossan
Mechanical Characterization And Shear Test Comparison For Continuous-Fiber Polymer Composites, Matthew Crossan
Electronic Thesis and Dissertation Repository
As fiber-reinforced composites continue to be used in a wide-range of high performance structures, more detailed understanding and accurate prediction of stress-strain behaviour is necessary to improving designs and reducing costs. This thesis compares the experimental behaviour of a continuous fiber polymer composite of carbon fiber and epoxy resin using Digital Image Correlation to analytical and theoretical predictions. Furthermore, an in-depth analysis of shear testing methods reveals the advantages and limitations of different testing standards. Finally, the limitations of the Iosipescu Shear test (ASTM 5379) fixture to break high-strain-to-failure composites in comparison to the V-notched Rail Shear Fixture (ASTM 7078) …
Development Of A Laser-Based Technique For The Assessment Of High Quality Automotive Surfaces, Navraj Heer
Development Of A Laser-Based Technique For The Assessment Of High Quality Automotive Surfaces, Navraj Heer
Electronic Thesis and Dissertation Repository
The quality of painted surfaces plays an important role in the overall aesthetics of the automotive products. Although a number of quantitative techniques have been developed for this particular type of quality assessment, the solutions proposed so far remain costly and proprietary such that industry continues to rely primarily on qualitative, error-prone human evaluations. To address this, the primary objective of this thesis was to explore the possibility to develop a laser-based technique for the non-tactile quantification of defects in reflective painted surfaces. For this purpose, analytical solutions were formulated to predict the reflection of a laser beam from a …