Stress Concentration Factor of A Two-Planar Double KT Tubular Joint due to In-Plane Bending Loading in Steel Offshore StructuresPrastianto Rudi Walujo, Hadiwidodo Yoyok Setyo and Fuadi Ibnu FasyinMATEC Web Conf., 177 (2018) 01006DOI: https://doi.org/10.1051/matecconf/201817701006