Contents
Class guideline — DNVGL-CG-0138. Edition July 2018 Page 4
Direct strength analysis of hull structures in passenger ships
DNV GL AS
CONTENTS
Changes – current.................................................................................................. 3
Section 1 Introduction............................................................................................ 5
1 Definitions........................................................................................... 5
2 General................................................................................................ 5
3 Objectives............................................................................................ 5
4 Methods of analysis............................................................................. 5
Section 2 Direct strength assessment.....................................................................6
1 Load combinations...............................................................................6
2 Pillar analysis...................................................................................... 7
3 Bow impact analysis............................................................................ 8
4 Docking analysis.................................................................................. 8
5 Direct wave load analysis.................................................................... 8
Section 3 Global FE strength analysis..................................................................... 9
1 Objectives............................................................................................ 9
2 Global finite element model.................................................................9
3 Boundary conditions.......................................................................... 10
4 Stillwater loads application............................................................... 10
5 Dynamic loads application................................................................. 11
6 Simplified global strength assessment method..................................12
Section 4 |Local FE strength assessment..............................................................13
1 Application......................................................................................... 13
2 Peak stress control............................................................................ 13
3 Shear stress control.......................................................................... 13
4 Pillar supporting structure.................................................................13
Section 5 Fatigue.................................................................................................. 14
1 Method and application..................................................................... 14
2 Fatigue capacity and strength representation....................................14
Changes – historic................................................................................................ 17