Author(s)

C.-C. Liang, C.-Y. Hsu, T.-L. Teng & C.-Y. Jen

Abstract

Estimation of the low cycle fatigue life for a submarine pressure hull C.-C. ~ i a n ~ ' , C.-Y. HSU~, T.-L. en^' & C.-Y. en^ 1 Department of Mechanical and Automation Engineering, Da-Yeh University, Taiwan, ROC 2 Department of Marine Mechanical Engineering, Chinese Naval Academy, Tsoying, Taiwan, ROC 3~nstitute of System Engineering, University of National Defense Chung Cheng Institute of Technology, Ta-Shi, Tao-Yuan 335, Taiwan, ROC Abstract An accurate estimate of the fatigue life of a submersible pressure hull is a valuable reference for the maintenance or construction. This work presents a novel means of estimating the low-cycle fatigue life of a submarine pressure hull. A finite element procedure is initially developed to determine the area of high stress and the strain spectrum of this area after the cyclic hydrostatic pressure loading is obtained. The Coffin-Manson non-linear experience equation associated with the strain-life method is then applied and combines the Miner damage accum

Keywords