Shear resistance shows the ability of a joint to withstand in-plane stresses during use.
To perform the test a universal testing machine Z1200 Zwick/Roell equipped with special grips and measuring equipment by Hottinger Baldwin Masstechnik (universal amplifier HBM Quantum MX-840B – LB164 with CATMAN EASY AP software and tensile force transducer of nominal (rated) force appropriate to the strength of tested material (HBM S2M/1000N) is used.
The shear resistance of the joint between two pieces of a membrane is determined according to EN 12317-2 - Flexible sheets for waterproofing - Determination of shear resistance of joints - Part 2: Plastic and rubber sheets for roof waterproofing.
The shear resistance of the connection between sandwich panel and a sub-structure is determined according to EAD 330047-01-0602 – Fastening screws for sandwich panels.
As part of the testing of the PM&VL7 research line, Rothoblaas connections of membranes and tapes and Indresmat sandwich panels were examined.