FEA-Based Failure Analysis of a UHP Chamber for Simulation of Deep Sea Conditions

As high hydrostatic pressure is the main feature of deep-sea environment, pressure test is an important part in the development of deep-sea instruments and equipment. An ultrahigh pressure (UHP) chamber with several interface ports is designed and manufactured for pressure test. In this paper, the finite element analysis (FEA) is applied to the failure analysis of the chamber, including the elastoplastic analysis and the local overstrain failure assessment. The analysis results show that the design meets the requirements.