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BS EN 1999-1-3:2023 Eurocode 9. Design of aluminium structures - Structures susceptible to fatigue, 2023
- undefined
- 1 Scope [Go to Page]
- 1.1 Scope of EN 1999-1-3
- 1.2 Assumptions
- 2 Normative references
- 3 Terms, definitions and symbols [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols
- 4 Basis of design [Go to Page]
- 4.1 Basic rules
- 4.2 Methods of fatigue design [Go to Page]
- 4.2.1 Safe life design (SLD)
- 4.2.2 Damage tolerant design (DTD)
- 4.2.3 Design assisted by testing
- 4.3 Fatigue loading [Go to Page]
- 4.3.1 Sources of fatigue loading
- 4.3.2 Derivation of fatigue loading
- 4.3.3 Equivalent fatigue loading
- 4.4 Partial factors for fatigue loads
- 4.5 Execution requirements [Go to Page]
- 4.5.1 General
- 4.5.2 Execution classes
- 4.5.3 Execution specification
- 4.5.4 Operation manual
- 4.5.5 Inspection and maintenance manual
- 5 Materials, constituent products and connecting devices
- 6 Durability
- 7 Structural analysis [Go to Page]
- 7.1 Global analysis [Go to Page]
- 7.1.1 General
- 7.1.2 Use of beam elements
- 7.1.3 Use of membrane, shell and solid elements
- 7.2 Types of stresses [Go to Page]
- 7.2.1 General
- 7.2.2 Nominal stresses
- 7.2.3 Modified nominal stresses
- 7.2.4 Hot spot stresses
- 7.3 Derivation of stresses [Go to Page]
- 7.3.1 Derivation of nominal stresses [Go to Page]
- 7.3.1.1 Structural models using beam elements
- 7.3.1.2 Structural models using membrane, shell or solid elements
- 7.3.2 Derivation of modified nominal stresses [Go to Page]
- 7.3.2.1 Structural models using beam elements
- 7.3.2.2 Structural models using membrane, shell or solid elements
- 7.3.3 Derivation of hot spot stresses
- 7.3.4 Stress orientation
- 7.4 Stress ranges for specific initiation sites [Go to Page]
- 7.4.1 Parent material, welds, and mechanically fastened joints
- 7.4.2 Fillet and partial penetration butt welds
- 7.5 Adhesive bonds
- 7.6 Castings
- 7.7 Stress spectra
- 7.8 Calculation of equivalent stress range for standardized fatigue load models [Go to Page]
- 7.8.1 General
- 7.8.2 Design value of stress range
- 8 Fatigue resistance and detail categories [Go to Page]
- 8.1 Detail categories [Go to Page]
- 8.1.1 General
- 8.1.2 Factors affecting detail category
- 8.1.3 Constructional details
- 8.2 Fatigue strength data [Go to Page]
- 8.2.1 Classified constructional details
- 8.2.2 Unclassified details
- 8.2.3 Adhesively bonded joints
- 8.2.4 Determination of the reference hot spot strength values
- 8.3 Effect of mean stress [Go to Page]
- 8.3.1 General
- 8.3.2 Parent material and mechanically fastened joints
- 8.3.3 Welded joints
- 8.3.4 Adhesive joints
- 8.3.5 Low endurance range
- 8.3.6 Cycle counting for R-ratio calculations
- 8.4 Effect of exposure conditions
- 8.5 Improvement techniques
- Annex A (normative)Basis for calculation of fatigue resistance [Go to Page]
- A.1 Use of this annex
- A.2 Scope and field of application
- A.3 General [Go to Page]
- A.3.1 Influence of fatigue on design
- A.3.2 Mechanism of failure
- A.3.3 Potential sites for fatigue cracking
- A.3.4 Conditions for fatigue susceptibility
- A.4 Safe life design [Go to Page]
- A.4.1 General
- A.4.2 Prerequisites for safe life design
- A.4.3 Design approach
- A.4.4 Cycle counting
- A.4.5 Derivation of stress spectrum
- A.5 Damage tolerant design [Go to Page]
- A.5.1 Prerequisites for damage tolerant design
- A.5.2 Structural layout and detailing
- A.5.3 Determination of inspection strategy for damage tolerant design
- Annex B (informative)Guidance on assessment of crack growth by fracture mechanics [Go to Page]
- B.1 Use of this informative annex
- B.2 Scope and field of application
- B.3 Principles [Go to Page]
- B.3.1 Flaw dimensions
- B.3.2 Crack growth relationship
- B.4 Crack growth data A and m
- B.5 Geometry function y
- B.6 Integration of crack growth
- B.7 Assessment of maximum crack size a2
- Annex C (informative)Testing for fatigue design [Go to Page]
- C.1 Use of this informative annex
- C.2 Scope and field of application
- C.3 Derivation of action loading data [Go to Page]
- C.3.1 Fixed structures subject to mechanical action
- C.3.2 Fixed structures subject to actions due to exposure conditions
- C.3.3 Moving structures
- C.4 Derivation of stress data [Go to Page]
- C.4.1 Component test data
- C.4.2 Structure test data
- C.4.3 Verification of stress history
- C.5 Derivation of endurance data [Go to Page]
- C.5.1 Component testing
- C.5.2 Full scale testing
- C.5.3 Acceptance
- C.6 Crack growth data
- C.7 Reporting
- Annex D (informative)Stress analysis [Go to Page]
- D.1 Use of this informative annex
- D.2 Scope and field of application
- D.3 Use of finite elements for fatigue analysis [Go to Page]
- D.3.1 Element types [Go to Page]
- D.3.1.1 Beam elements
- D.3.1.2 Membrane elements
- D.3.1.3 Thin shell elements
- D.3.1.4 Thick shell elements
- D.3.1.5 Plane strain elements
- D.3.2 Further guidance on use of finite elements
- D.4 Stress concentration factors
- D.5 Limitation of fatigue induced by repeated local buckling
- Annex E (informative)Adhesively bonded joints [Go to Page]
- E.1 Use of this informative annex
- E.2 Scope and field of application
- Annex F (informative)Low cycle fatigue range [Go to Page]
- F.1 Use of this informative annex
- F.2 Scope and field of application
- F.3 Modification to fatigue strength curves
- F.4 Test data
- Annex G (informative)Influence of applied stress ratio R [Go to Page]
- G.1 Use of this informative annex
- G.2 Scope and field of application
- G.3 Enhancement of fatigue strength
- G.4 Enhancement cases [Go to Page]
- G.4.1 Case 1
- G.4.2 Case 2
- G.4.3 Case 3
- Annex H (informative)Fatigue strength improvement of welds [Go to Page]
- H.1 Use of this informative annex
- H.2 Scope and field of application
- H.3 Machining or grinding
- H.4 Dressing by TIG or plasma
- H.5 Peening
- Annex I (informative)Castings [Go to Page]
- I.1 Use of this informative annex
- I.2 Scope and field of application
- I.3 Fatigue strength data [Go to Page]
- I.3.1 Cast material
- I.3.2 Welded material
- I.3.3 Mechanically joined castings [Go to Page]
- I.3.3.1 Bolted joints
- I.3.3.2 Pinned joints
- I.3.4 Adhesively bonded castings
- I.4 Quality requirements
- Annex J (informative)Detail category tables [Go to Page]
- J.1 Use of this informative annex
- J.2 Scope and field of application
- Annex K (informative)Hot spot reference detail method [Go to Page]
- K.1 Use of this informative annex
- K.2 Scope and field of application
- K.3 Hot spot reference detail method
- Annex L (informative)Guidance on use of design methods, selection of partial factors, limits for damage values, inspection intervals and execution parameters if Annex J is adopted [Go to Page]
- L.1 Use of this informative annex
- L.2 Scope and field of application
- L.3 Safe life design approach [Go to Page]
- L.3.1 General
- L.3.2 SLD-I
- L.3.3 SLD-II
- L.4 Damage tolerant design approach [Go to Page]
- L.4.1 General
- L.4.2 DTD-I
- L.4.3 DTD-II
- L.5 Start of inspection and inspection intervals
- L.6 Partial factors γMf and the values of DLim
- L.7 Parameters for execution [Go to Page]
- L.7.1 Service category
- L.7.2 Calculation of utilization grade [Go to Page]
