Study on Forming Theory of Inner Strong & Outer Weak Strong Bi-metal Pipe

As a new type of pipe, bimetallic composite pipe is widely used in various industries the chemical industry, because its internal and external tubes use different metals, so it can cope with variety working conditions. At present, application field mostly inner strong outer weak this has not been studied accordingly. In paper, theory expansion derived, complete set methods related parameter calculation formulas are obtained. Abaqus, finite meta-analysis software, to simulate process compare theoretical results. The comparative results show that formula obtained by derivation high degree credibility, using theories close computer simulation be industrial production.