A hollow structural member is reinforced by a housing in the form of a framework exposed structural foam on the housing. The housing is placed in the structural member at an orientation with its longitudinal axis perpendicular to the longitudinal axis of the structural member so that the foam is disposed...http://www.google.es/patents/US6455126?utm_source=gb-gplus-sharePatente US6455126 - Reinforcement of hollow sections using extrusions and a polymer binding layer
Reinforcement of hollow sections using extrusions and a polymer binding layer
