Section 6 Temperature control of cored sandwich structures
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 8 Hull Construction in Composite - Chapter 7 Failure Modes Control - Section 6 Temperature control of cored sandwich structures

Section 6 Temperature control of cored sandwich structures

Parent topic: Chapter 7 Failure Modes Control

6.1 General

6.1.1 Where foam core materials are used in sandwich construction the properties at elevated temperature are to be considered. Where appropriate the mechanical properties are to be those at the maximum ambient temperature expected under normal operating conditions.

6.1.2 Alternatively other methods of controlling the temperature of the core may be considered, e.g. inserts, insulation.

6.2 Information required

6.2.1 The source of the mechanical properties data is to be shown on the Materials Data Sheet (Form 2075) when the plans are initially submitted for approval.

6.2.2 Test data is to be submitted for each grade of foam core in respect of:

  • Core shear strength.
  • Core shear modulus.
  • Tensile strength (only for high density cores, i.e. > 100 kg/m3).
  • Tensile modulus (only for high density cores, i.e. > 100 kg/m3).

6.3 Testing

6.3.1 Core materials are to be tested in accordance with Rules for the Manufacture, Testing and Certification of Materials, July 2022.

6.4 National Authority requirements

6.4.1 National Authority requirements are to be complied with as applicable.

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