An Estimation of the Stress Concentration Factor for Mast Lug of Yacht with Different Shapes

Abstract

Recently, according to the increase of income and development of quality of life, the leisure industry has been developed. In particular, the interest of design and manufacture technology of leisure yacht has significantly increased. However, domestic market of leisure ships is currently in its initiating stage. So research and development for structural strength of leisure yacht need to be investigated.In this study, lug of yacht's mast which is known for a critical damage region is explicitly considered. This paper deals with the estimation of stress concentration factors (SCFs) for lug of yacht's mast depending on dimensions of lug using hot spot stress. Also, SCF formulae is suggested using parametric study.Key Words : Yacht, Mast, Lug, finite element analysis, Hot spot stress, Stress concentration factor (SCF), Parametric study, SCF formulae