An innovative composite damping solution Fig. 6: Hood tuned to have a "wood-colour" noise Fig. 3: Left: Smacwrap roll; right and bottom: integration into a composite material - viscoelastic material. As a consequence, the debris are retained instead of being thrown away. This was successfully tested on a carbon fibre interior part for a supercar. - Flexibility/anisotropy: inserting several Smacwrap® layers into a composite lay-up provides great flexibility in torsion and/or in bending, thus creating an anisotropic material with a very different mechanical behaviour along the different axes. This property can be used in many applications, from sports & leisure to industry and aerospace parts (Figure 5). - Sound quality: when damping a composite part with Smacwrap®, the sound reflected by shocks and tapping is modified and "coloured". For example, luxury car brands conducted tests to achieve a "wood-colour" noise with carbon fibre automotive parts (Figure 6). More information: www.smac-sas.com Contact: Philippe.ROBERT@smac.fr Focus Fig. 4: Damping test on a sports car hood SMAC is a 70-year-old French SME dedicated to innovative rubber materials and products for special applications in the aerospace, defence and racing car sectors. The company develops custom isolators and dampers for aerospace and defence programmes, as well as damping products and materials for aircraft interiors. SMAC belongs to the MontBlanc Technologies Group. Fig. 5: Left: SmacFlex testing; right: SmacFlex results No110 January-February 2017 / jec composites magazine 57http://www.smac-sas.com