Pierre Aumjaud
Telephone: +44 (0)1392 725767
College: College of Engineering, Mathematics and Physical Sciences
Discipline: Engineering
Department: Mechanical engineering
Research Centre/Unit: Multi-functional materials
Sandwich structures are widely used in transports, and especially in the aeronautical industry, for their excellent mechanical and lightweight properties. Transports are often vibration-rich environments, which can make fatigue problematic, increase fuel consumption, and adversely affect passenger comfort. Therefore, efforts must be made to reduce vibration levels effectively in order to improve reliability, safety and cost efficiency.
My PhD project investigates ways to damp vibration passively in honeycomb-core sandwich structures without affecting their inherent mechanical properties at low weight. The Double Shear Lap-Joint damper, recently developed at the University of Exeter, has been optimised in order to provide the highest vibration damping for the least increase in mass in honeycomb sandwich structures using viscoelastic material.
Publications:
Aumjaud P, Smith CW, Evans KE, A novel viscoelastic damping treatment for honeycomb sandwich structures, Composite Structures 119 (2015) 322-332. doi:10.1016/j.compstruct.2014.09.005.
Aumjaud, P., Fieldsend, J.E., Boucher, M.-A., Evans, K.E., Smith, C.W., Multi-objective optimisation of viscoelastic damping inserts in honeycomb sandwich structures, Composite Structures , 132 (2015), 322-332, doi:10.1016/j.compstruct.2015.05.061
