Fig. 8
From: Non-contact experimental methods to characterise the response of a hyper-elastic membrane
Tensioning device for experimental modal analysis. a The membrane is held between two flanges. Threaded rods as well as a circular tube are attached two a supporting back panel. The flange fixture is used to hold the membrane at a fixed position. b The starting position, where the membrane barely touches the rim of the tube and does not experience any deformation. c The membrane is stretched over the tube by moving the flange fixture towards the back panel