Photoelastic analysis has been a well-accepted technology in solving engineering problems. It serves as a tool to identify problem stucture, verifies analytical predictions, and correlates results with other testing methods. Birefringent coating is an application of photoelasticity on actual mechanical hardware. It bonds thin layers of photoelastic material to the components using reflective adhesive. As the coating layer deforms along with the base structure, analysis of fringe pattern in the coating will enable prediction of surface strains of the part. Since the birefringent coating analysis is performed on actual hardware, it provides leverage to troubleshoot the existing design. Engineers have used birefringent coating as a full field surface strain measuring tool for many years. The technique provides visual inspection of the structure on highly stressed areas that may lead to a potential structural failure. The usage of this technique for analysis of automotive brake components is very common. The recent development of the strain freezing technique extends further the capability of birefringent coating analysis. Hidden areas with high stresses can now be revealed for analysis.
Analyzing automotive brake components using birefringent coating technique
Analyse der Bremsteile von Kraftfahrzeugen mit Hilfe der Doppelbrechung-Beschichtungstechnik
SAE Technical Papers ; 1-6
1993
6 Seiten, 11 Bilder, 6 Quellen
Conference paper
English
Analyzing Automotive Brake Components Using Birefringent Coating Technique
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