CCS GUIDELINES FOR FATIGUE STRENGTH OF SHIP STRUCTURE
|D O W N L O A D|
The Guidelines for the assessment of the fatigue strength of the ship structure developed and released by China Register. The authors of the document conducted a thorough research during which they mainly relied on the technical system of the current CCS Rules for the vessels engaged in domestic and international voyages, relevant fatigue assessment requirements, and absorbed the available international method and concept of the fatigue strength assessment.
These newly issued Guidelines feature the adoption of the load system having much more clear physical meaning and basing on the equivalent wave, adoption of the spot stress to the assessment of the fatigue strength, improving the rationality of the S-N curve selection and more exactly considering the mean stress correction. The document also adds new method of the assessment that can be applied to the membrane tank liquid gas carriers.
The content of the Guidelines is arranged in six chapters providing general information, addressing the design load and design analysis, as well as the final element - and simplified stress analysis, and finally the fatigue strength of pump tower. The appendix provides some additional information on hull structural details of three types of ships, namely oil tankers, containerships and bulk carriers.
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