DNV-CG-0129-2025 船舶结构疲劳评估指南

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CLASS GUIDELINE

DNV-CG-0129 EditionJanuary2025

Fatigueassessmentofshipstructures

ThecontentofthisservicedocumentisthesubjectofintellectualpropertyrightsreservedbyDNVAS(“DNV”).Theuser

acceptsthatitisprohibitedbyanyoneelsebutDNVand/oritslicenseestoofferand/orperformclassification,certification

and/orverificationservices,includingtheissuanceofcertificatesand/ordeclarationsofconformity,whollyorpartly,onthe

basisofand/orpursuanttothisdocumentwhetherfreeofchargeorchargeable,withoutDNV’spriorwrittenconsent.DNV

isnotresponsiblefortheconsequencesarisingfromanyuseofthisdocumentbyothers.

ThePDFelectronicversionofthisdocumentavailableattheDNVwebsitednv.comistheofficialversion.Ifthere

areanyinconsistenciesbetweenthePDFversionandanyotheravailableversion,thePDFversionshallprevail.

DNVAS

FOREWORD

DNVclassguidelinescontainmethods,technicalrequirements,principlesandacceptancecriteria

relatedtoclassedobjectsasreferredtofromtherules.

©DNVASJanuary2025

Anycommentsmaybesentbye-mailtorules@dnv.com

Thisservicedocumenthasbeenpreparedbasedonavailableknowledge,technologyand/orinformationatthetimeofissuanceofthis

document.TheuseofthisdocumentbyotherpartiesthanDNVisattheuser'ssolerisk.Unlessotherwisestatedinanapplicablecontract,

orfollowingfrommandatorylaw,theliabilityofDNVAS,itsparentcompaniesandsubsidiariesaswellastheirofficers,directorsand

employees(“DNV”)forprovedlossordamagearisingfromorinconnectionwithanyactoromissionofDNV,whetherincontractorintort

(includingnegligence),shallbelimitedtodirectlossesandunderanycircumstancebelimitedto300,000USD.

CHANGES–CURRENT

ThisdocumentsupersedestheOctober2021editionofDNV-CG-0129.

Thenumberingand/ortitleofitemscontainingchangesishighlightedinred.

ChangesJanuary2025

Topic Reference Description

General Sec.1 UpdatedandrestructuredtoalignwithstandardDNVformat.

AlignmentwithDNV-RP-C203 Sec.1[4],

Sec.2[1.3],

Sec.3Table2,

Sec.6[5],

Sec.8[2.3],

App.A[9],

App.B[2.1],

App.C[2.3],

App.E[2.2],

App.E[6],

App.I[10]

AddedreferencestoDNV-RP-C203fortopicsnotcoveredor

partlynotcoveredbytheclassguideline(CG).

Referencesandbibliography Sec.1[5],

Sec.10[1]

Separatedbibliography(backgroundinformation)inSec.10

fromthereferencesthathavebeenmovedtoSec.1[5].

Fatiguemethodsand

approaches Sec.2 Newsectionwhereallcontentregardingfatigueapproaches

andadditionalclassnotationshasbeenmovedfromprevious

Sec.1.

Additionalclassnotations Sec.2[3] Describedadditionalclassnotationswithrespecttofatiguelike

FMS,Smart,ASP,andWAPS.

Fatiguetermsinoperation Sec.2[3.4] Clarifiedoftermslikefatiguedamageforcalculationof

inspectionintervals,fatigueratesforseamanshipand

experiencefeedback,andfatigueutilisationforlifetime

extensionandfutureexpectations.

S-Ncurvesforfreeplateedges Sec.3[2.3] UpdatedS-Ncurveknuckleandparametersforthelowerslope

forfreeplateedges.

Steelmaterial Sec.3[2.6] AddedclarificationthatS-NcurvesapplytorolledsteelandC

curvemaybemaximumusedforforgedandcaststeel.

Aluminium Sec.3[2.7] Addedsubsectionwithreferencetorulesfornavalshipswhich

includemoredetailsonS-Ncurvesforaluminium.

Gammafunctions Sec.4[3.3],

App.C[2.2],

App.C[2.3]

Addeddefinitionsforthreegammafunctions:complete,lower

incomplete,anduppercomplimentaryincompletegamma

functions.

Localplatebendingstress Sec.5[8] Improvedthedescriptionandapplicationoflocalplatebending

stressandmoveditfromApp.DtoSec.5.

Changes-current

Classguideline—DNV-CG-0129.EditionJanuary2025 Page3

Fatigueassessmentofshipstructures

DNVAS

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标签： #结构 #评估 #评估指南

摘要：

DNV-CG-0129-2025 是挪威船级社（DNV）于2025年发布的最新版船舶结构疲劳评估指南，专门针对钢质及铝合金船舶的疲劳强度分析与寿命预测提供系统化技术规范。该指南涵盖了基于S-N曲线与断裂力学的评估方法、热点应力与名义应力计算流程、焊接接头分类及疲劳损伤累积准则，适用于货船、集装箱船、油轮及海洋工程结构的新建与在役评估。指南还更新了波浪载荷长期分布模型、应力响应谱分析参数及腐蚀环境修正因子，旨在帮助工程师与设计人员提高结构安全性和可靠性，降低疲劳开裂风险。该标准可广泛应用于船舶设计

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