Pengembangan Formula SCF untuk Analisa Kelelahan Joint (Sambungan) T pada Struktur Bangunan Lepas Pantai

Abstract

. Loading on tubular joints will create hotspot stresses at intersection which several times higher than the nominal stress so that accelerate fatigue to the joints due to cyclic loadings. The ratio of hotspot stress and the nominal stress is called Stress Concentration Factor (SCF). In this paper, new empirical formulas of SCF are developed by using finite element modeling. ANSYS software is used to analyze stresses at T joint. .The new empirical formula of SCF is developed based on geometric data of chord and brace, namely diameter of chord (D), diameter of brace (d), thickness of chord (T), thickness of brace (t), length of chord (L), length of brace (l), by having reference geometric comparison for parametric formula.