Because of the continuous evolution of the market in terms of quality and performance, the car production industry, is subjected to more and more pressing technological challenges. In this frame the use of advanced measurement technique as the thermoelasticity, allows the engineers to have a fast and reliable tool of experimental investigation, optimization and validation of the FEM models of those critical parts as for example parts of car frames tables (Marsili et al., 2013; Ju et al., 1997). In this work it is shown how the thermoelastic measurement technique can be used to optimize a Ferrari car frame, as method of experimental investigation and as technique of validation of numerical models. The measurement technique developed for this purpose is described together with the calibration method used in the test benches normally used for fatigue testing and qualification of this car’s components. The results obtained show a very good agreement with FEM models and also the possibility to experimentally identify the concentration levels of stress in critical parts with a very high spatial resolution and testing the effective geometry and material structure.
TSA infrared measurements for stress distribution on car elements
Marsili, Roberto;Rossi, Gianluca
2017
Abstract
Because of the continuous evolution of the market in terms of quality and performance, the car production industry, is subjected to more and more pressing technological challenges. In this frame the use of advanced measurement technique as the thermoelasticity, allows the engineers to have a fast and reliable tool of experimental investigation, optimization and validation of the FEM models of those critical parts as for example parts of car frames tables (Marsili et al., 2013; Ju et al., 1997). In this work it is shown how the thermoelastic measurement technique can be used to optimize a Ferrari car frame, as method of experimental investigation and as technique of validation of numerical models. The measurement technique developed for this purpose is described together with the calibration method used in the test benches normally used for fatigue testing and qualification of this car’s components. The results obtained show a very good agreement with FEM models and also the possibility to experimentally identify the concentration levels of stress in critical parts with a very high spatial resolution and testing the effective geometry and material structure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.