Durability test methodology

Accelerated Testing Methodology for Polymer Composite Durability... 

Kim, H.M., Jorgensen, G.J., King, D.E., Czandema, A.W. Development of a methodology for service lifetime prediction of renewable energy devices. In Durability testing of nonmetallic materials. ASTM STP 1294, pp. 173-189 (1996)... 

Firstly, to continue to develop test methods and durability models which permit the service-life of an adhesive system to be accurately ranked, and quantitatively predicted, from relatively short-term tests. The use of various fracture-mechanics techniques have been detailed in the present chapter and they appear to be gaining increasing recognition as the preferred methodology, especially with the development of cohesive zone models (also known as interface elements ), which offer an excellent route for coupling fracture-mechanics parameters with FEA modelling studies. 

The portable device can be used at a low temperature, less than 60°C, although automobile or stationary fuel cells operate at above 70 or 80°C. The durability requirements are also different Therefore, we must systematically design a different polymer electrolyte membrane for each application. In most cases, a new polymer electrolyte is made and then the fuel cell performance is tested. However, we are proposing a systematic design methodology for the membrane to suit each application. 

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