《船舶与海洋工程结构风险评估》课程教学课件（讲稿）Lecture 13 Tutorials on StiffenedShellsI

ASRAnetStructural Reliability & Risk Assessment4-8 July 2016Wuhan, ChinaLecture 16: Tutorials on Stiffened ShellsProfessor Purnendu K. DasB.E., M.E., PhD, CEng, CMarEng, FRINA, FIStructE, FIMarEST

Structural Reliability & Risk Assessment 4 – 8 July 2016 Wuhan, China Lecture 16: Tutorials on Stiffened Shells Professor Purnendu K. Das B.E., M.E., PhD, CEng, CMarEng, FRINA, FIStructE, FIMarEST 1

Question 1Check the ultimate capacity of the following model underaxial, radial and combined loading (follow DNVRecommended Practice DNV-RP-C202 Buckling Strengthof Shells (2013)):L = 900 mmR = 3500 mmE = 200,000 N/mm2t = 8 mm×= 285 N/mm2Dimensions of ring stiffness (Outside Stiffened)Web: 95 mm x 7 mmFlange: 80 mm x 7 mmLoadAxial Load = 4 x 105 NExternal Pressure = 1.2 x 10-1 N/mm2

Question 1 Check the ultimate capacity of the following model under axial, radial and combined loading (follow DNV Recommended Practice DNV-RP-C202 Buckling Strength of Shells (2013)): L = 900 mm R = 3500 mm t = 8 mm E = 200,000 N/mm2 σ𝑦 = 285 N/mm2 Dimensions of ring stiffness (Outside Stiffened) Web: 95 mm x 7 mm Flange: 80 mm x 7 mm Load Axial Load = 4 x 105 N External Pressure = 1.2 x 10−1 N/mm2