Validation of Impact Simulations of a Car Bonnet by Full-Field Optical Measurements
Innovative designs of transport vehicles need to be validated in order to demonstrate reliability and provide confidence. The most common approaches to such designs involve simulations based on Finite Element (FE) analysis, used to study the mechanical response of the structural elements during critical events. These simulations need reliable validation techniques, especially if anisotropic materials, such as fibre reinforced polymers, or complex designs, such as automotive components are considered. It is normal practice to assess the accuracy of numerical results by comparing the predicted values to corresponding experimental data. In this frame, the use of whole field optical techniques has been proven successful in the validation of deformation, strain, or vibration modes . The strength of full-field optical techniques is that the whole displacement field can be visualized and analyzed. By using High Speed cameras, the Digital Image Correlation (DIC) method can be applied to highly non-linear dynamic events and deliver quantitative information about the three-dimensional displacement field .
R. L. Burguete, M. Lucas, E. A. Patterson, S. Quinn
G. Lampeas et al., "Validation of Impact Simulations of a Car Bonnet by Full-Field Optical Measurements", Applied Mechanics and Materials, Vol. 70, pp. 57-62, 2011