Residual Stress, Thermomechanics& Infrared Imaging, Hybrid Techniques and Inverse Problems, Volume 9 of the Proceedings of the 2015SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the ninth volume of nine from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of areas, including: Inverse MethodsInverse Methods in PlasticityVarying Length ScalesHarsh EnvironmentsOpto-Acoustical MethodsHybrid ExperimentalResidual Stress Modelling and Advances in Measurements ThermomechanicsGeneral Material ResponseInfrared Imaging