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김완두(Wan Doo Kim),조성도성(Seong Do Seong Cho) 한국고무학회 2000 엘라스토머 및 콤포지트 Vol.35 No.1
N/A A rubber diaphragm is a critical element of accumulators. The material of a diaphragm is nitrite rubber so as to recover and adjust the large deformation under external pressure fluctuation. The performance of accumulators is influenced by the deformation behaviors of the diaphragm. A large deformation behavior of the diaphragm has been investigated using the commercial finite element program MARC K7.1. The several elastic moduli have been used in linear analysis and Ogden`s coefficients have been used in non-linear analysis. As a result, it has been shown that the deformation behavior with a elastic modulus of 0.3 ㎏/㎟ is similar to the behavior of non-linear analysis. And, the modified diaphragm shape to reduce the stress concentration has been proposed.