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Publications
Guedes Soares, C. (2020), “Ultimate Strength of Ships and Offshore Structures”, Journal of Marine Science and Application, Vol. 19, pp. 509-511
The assessment of the ultimate strength of floating structures is an essential step in their design process and thus it is included as one of the checks in the Rules of Classification Societies. Several years ago, the Rule requirement was based on the section modulus associated with the yield condition, a situation that has been shown to be clearly conservative by an amount that would depend on the geometry of the section. The development of methods to quantify the ultimate strength, including the ability of numerical methods to deal with those predictions in a relatively cost-efficient manner, led to proposals that the ultimate strength should be used as the reference value expressing the strength of the ship hull structure (Guedes Soares et al. 1996), which was adopted 10 years later by the Classification Societies in their Common Structural Rules (CSR 2006; IACS 2014). Indeed, the present status of design relies on ultimate strength assessment and on nonlinear wave induced loads, which have been covered in and earlier special issue (Guedes Soares and Duan, 2018).
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