Study on fretting behavior of rubber O-ring seal in high-pressure gaseous hydrogen

Fretting is a low-amplitude reciprocating movement which may lead to seal failure, it is important to explore the fretting characteristic of a rubber seal in hydrogen atmosphere. In this work, a numerical model considering the effect of hydrogen swelling was presented to study the fretting behavior of a rubber seal. The fretting running condition was analyzed. Results showed that, the amplitude of reciprocating motion made a great effect on the...