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ISO 12215-10:2020 Small craft - Hull construction and scantlings - Part 10: Rig loads and rig attachment in sailing craft >
ISO 12215-10:2020 Small craft - Hull construction and scantlings - Part 10: Rig loads and rig attachment in sailing craft, 2020
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Symbols
- 5 Application of the document
- 5.1 General
- 5.2 The simplified method
- 5.3 The developed method
- 5.4 Steps of the methods and corresponding clauses of this document
- 6 Simplified and developed methods — Design stresses
- 6.1 General
- 6.2 Design load vs safety factor
- 7 Developed method — General assessments, design moment
- 7.1 General
- 7.1.1 General topics on rigging design
- 7.1.2 Sail configurations:
- 7.1.3 Rigging loads and adjustment information to be provided
- 7.2 Design moment MD: righting or heeling moment
- 7.2.1 General
- 7.2.2 Principle of design
- 7.2.3 Topics on multihulls/form stable sailing craft corresponding to case b) i.e. with MH1 < MR UP1
- 7.2.4 Downwind longitudinal force FADOWN and nose trimming moment MHDOWN, running under spinnaker alone — "Normal" (Sc6) or "exceptional" (Sc8)
- 7.2.5 Maximum righting moment MRMAX, exceptional case, reaching under spinnaker
- 7.2.6 Heeling force FABROACH and heeling moment MHBROACH while broaching under spinnaker, exceptional case
- 7.2.7 Minimum sail configuration and righting/heeling moment to be analyzed
- 7.3 Rig dimensions, and default values for areas, forces and points of application
- 7.4 Wing masts
- 7.5 Resultant forces in sails
- 8 Loads in rigging elements — Developed method
- 8.1 General
- 8.2 Force in forestay, inner forestay, mainsail leech and on halyards
- 8.2.1 General
- 8.2.2 Force in forestay, inner forestay, mainsail leech and on halyards connected with sag
- 8.2.3 Force in forestay to balance the longitudinal component of forces from aft set shrouds, fixed/running backstays, mainsail leech
- 8.3 Force in backstay, running backstays, or equivalent
- 8.3.1 General
- 8.3.2 Fractional rig with fixed backstay, no running backstay and aft angled spreaders
- 8.3.3 Case of rigs without fixed nor running backstay
- 8.4 Compression in the mast step/pillar
- 8.4.1 General
- 8.4.2 Initial mast compression due to pre-stressing
- 8.4.3 Mast compression due to heeling or broaching
- 8.4.4 Design compression in the mast step/pillar
- 8.4.5 Detail topics on mast step/pillar
- 8.5 Final design load on rig elements
- 9 Structural components to be assessed — Simplified or developed method
- 9.1 General
- 9.2 Mast steps and mast pillars and their connection to the craft's structure
- 9.3 Chainplates and their connections to the craft's structure
- 9.4 Design details of chainplates and their connection to the structure
- 9.4.1 General
- 9.4.2 Strapped FRP chainplates
- 10 Application of the simplified method
- 11 Application of the developed method
- 11.1 General
- 11.2 General guidance for assessment by 3-D numerical procedures
- 11.2.1 General
- 11.2.2 Material properties
- 11.2.3 Boundary assumptions
- 11.2.4 Load application
- 11.2.5 Model idealization
- 11.3 Assessment by ‘strength of materials’ based methods
- 12 Application of this document
- 13 Information in the owner's manual
- 14 Information to the boat builder
- Annex A (informative) Application sheet of ISO 12215-10
- Annex B (informative) Information on metals and bolts
- Annex C (normative) Simplified "established practice" for mast step/pillar assessment
- Annex D (normative) Simplified "established practice" for the assessment of chainplatesand their connection
- Annex E (informative) Simplified "established practice" calculation oftransverse rig elements — Examples
- Bibliography [Go to Page]