Our overall aim is to understand the origins of energy dissipation mechanisms in filled rubbers. These effects are responsible for much of the carbon footprint associated with road transport today. We have so far successfully used QENS and SANS to study the dynamics and structure of model silica filled polybutadiene nanocomposites. QENS shows little impact of crosslinking on dynamics, but a significant reduction in polymer mobility when silica nanoparticles are added. We now focus on the dynamics of these systems whilst under an imposed strain, which mimics the process responsible for rolling resistance in tyres. In our refined setup, a motorised clamp and force transducer will allow QENS will be carried out on a series of filled rubber samples in which the filler and loading and applied stress and strain are systematically varied.