Test Types © Swansea Materials Research & Testing Ltd (SMaRT) is a wholly owned subsidiary of Swansea University 2012 Procedures & Monitoring Creep and stress rupture tests are carried out employing in-house procedures based upon British and International standards. All creep machines are equipped with high-precision extensometers capable of monitoring changes in specimen gauge length to 1um using pairs of differential-capacitance transducers linked to data recording systems. The SMaRT route to materials solutions Creep & Stress Rupture Testing - Procedures & Monitoring