Fibre-reinforced plastic composites—Standard qualification plan (SQP) for composite materials,including reduced qualification plan (RQP) and extended qualification plan (EQP) schemes
GB/T 43116-2023 Fibre-reinforced plastic composites - Standard qualification plan (SQP) for composite materials, including reduced qualification plan (RQP) and extended qualification plan (EQP) schemes
1 Scope
1.1 This document specifies a procedure for the initial qualification of composite materials in order to allow quality control, material selection and preliminary design to be undertaken. It provides a single procedure allowing quicker and lower cost qualification compared to multiple bi-lateral qualification against different bespoke user needs. This document focuses on developing B-basis design allowables.
1.2 The procedure comprises a standard qualification plan (SQP) that includes the minimum common test requirements for more highly anisotropic composite materials. Further test requirements are encompassed in an extended qualification plan (EQP), which includes options representing specific in-service features. A reduced qualification plan (RQP) scheme, using the same core structure of test plate preparation and test methods as the SQP, is available for less highly anisotropic and tending towards nominally isotropic composite materials.
1.3 The procedure is suitable for fibre-reinforced thermoset, and thermoplastic, based material systems intended for structural or semi-structural applications. Individual test method standards referred to in this document provide more details as to the classes and types of composite materials that are covered in each case.
1.4 Appendix A provides a report sheet that unifies the way test data are expressed. Appendix B provides a statistical analysis method for determining the B-base design allowable value.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 62 Plastics - Determination of water absorption
Note: GB/T 1034-2008, Plastics - Determination of water absorption (ISO 62:2008, IDT)
ISO 75-3 Plastics - Determination of temperature of deflection under load - Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics
Note: GB/T 1634.3-2004, Plastics - Determination of temperature of deflection under load - Part 3: High-strength thermosetting laminates (ISO 75-3:2003, IDT)
ISO 291 Plastics - Standard atmospheres for conditioning and testing
Note: GB/T 2918-2018, Plastics - Standard atmospheres for conditioning and testing (ISO 291:2008, MOD)
ISO 527-4 Plastics - Determination of tensile properties - Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites
Note: GB/T 1040.4-2006, Plastics - Determination of tensile properties - Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites (ISO 527-4:1997, IDT)
ISO 527-5 Plastics - Determination of tensile properties - Part 5: Test conditions for unidirectional fibre-reinforced plastic composites
Note: GB/T 1040.5-2008, Plastics - Determination of tensile properties - Part 5: Test conditions for unidirectional fibre-reinforced plastic composites (ISO 527-5:1997, IDT)
ISO 1172 Textile-glass-reinforced plastics - Prepregs, moulding compounds and laminates - Determination of the textile-glass and mineral-filler content - Calcination methods
Note: GB/T 2577-2005, Test method for resin content of glass fiber reinforced plastics (ISO 1172:1996, MOD)
ISO 1183 (all parts) Plastics - Methods for determining the density of non-cellular plastic
Note: GB/T 1033 (all parts), Plastics - Methods for determining the density of non-cellular plastic [ISO 1183 (all parts)]
ISO 1268 (all parts) Fibre-reinforced plastics - Methods of producing test plates
Note: GB/T 27797 (all parts), Fibre-reinforced plastics - Methods of producing test plates [ISO 1268 (all parts)]
ISO 1675 Plastics - Liquid resins - Determination of density by the pyknometer method
Note: GB/T 15223-2008, Plastics - Liquid resins - Determination of density by the pyknometer method (ISO 1675:1985, IDT)
ISO 2818 Plastics - Preparation of test specimens by machining
ISO 6603-2 Plastics - Determination of puncture impact behaviour of rigid plastics - Part 2: Instrumented impact testing
ISO 6721-11 Plastics - Determination of dynamic mechanical properties - Part 11: Glass transition temperature
Note: GB/T 33061.11-2022, Plastics - Determination of dynamic mechanical properties - Part 11: Glass transition temperature (ISO 6721-11:2019, MOD)
ISO 9782 Plastics - Reinforced moulding compounds and prepregs - Determination of apparent volatile-matter content
Note: GB/T 32788.3-2016, Test method for properties of prepreg - Part 3: Determination of volatile content (ISO 9782:1993, MOD)
ISO 10119 Carbon fibre - Determination of density
Note: GB/T 30019-2013, Carbon fibre - Determination of density (ISO 10119:2002, MOD)
ISO 10352 Fibre-reinforced plastics - Moulding compounds and prepregs - Determination of mass per unit area and fibre mass per unit area
Note: GB/T 32788.6-2016, Test method for properties of prepreg - Part 6: Determination of mass per unit area (ISO 10352:2010, MOD)
ISO 11357-1 Plastics - Differential scanning calorimetry (DSC) - Part 1: General principles
Note: GB/T 19466.1-2004, Plastics - Differential scanning calorimetry (DSC) - Part 1: General principles (ISO 11357-1:1997, IDT)
ISO 11357-2 Plastics - Differential scanning calorimetry (DSC) - Part 2: Determination of glass transition temperature and step height
Note: GB/T 19466.2-2004, Plastics - Differential scanning calorimetry (DSC) - Part 2: Determination of glass transition temperature (ISO 11357-2:1999, IDT)
ISO 11359-2 Plastics - Thermomechanical analysis (TMA) - Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature
Note: GB/T 36800.2-2018, Plastics - Thermomechanical analysis (TMA) - Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature (ISO 11359-2:1999, IDT)
ISO 11667 Fibre-reinforced plastics - Moulding compounds and prepregs - Determination of resin, reinforced-fibre and mineral-filler content - Dissolution methods
Note: GB/T 32788.5-2016, Test method for properties of prepreg - Part 5: Determination of resin content (ISO 11667:1997, MOD)
ISO 12815 Fibre-reinforced plastic composites - Determination of plain-pin bearing strength
ISO 12817 Fibre-reinforced plastic composites - Determination of open-hole compression strength
ISO 14125 Fibre-reinforced plastic composites - Determination of flexural properties
ISO 14126 Fibre-reinforced plastic composites - Determination of compressive properties in the in-plane direction
Note: GB/T 5258-2008, Fibre-reinforced plastic composites - Determination of compressive properties in the in-plane direction (ISO 14126:1999, MOD)
ISO 14127 Carbon-fibre-reinforced composites - Determination of the resin, fibre and void contents
ISO 14129 Fibre-reinforced plastic composites - Determination of the in-plane shear stress/shear strain response, including the in-plane shear modulus and strength, by the plus or minus 45 degree tension test method
ISO 14130 Fibre-reinforced plastic composites - Determination of apparent interlaminar shear strength by short-beam method
Note: JC/T 773-2010, Fibre-reinforced plastic composites - Determination of apparent interlaminar shear strength by short-beam method (ISO 14130:1997, IDT)
ISO 15024 Fibre-reinforced plastic composites - Determination of mode I interlaminar fracture toughness, GIC, for unidirectionally reinforced materials
Note: GB/T 28891-2012, Fibre-reinforced plastic composites - Determination of mode I interlaminar fracture toughness GIC for unidirectionally reinforced materials (ISO 15024:2001, IDT)
ISO 15034 Composites - Prepregs - Determination of resin flow
Note: GB/T 32788.2-2016, Test method for properties of prepreg - Part 2: Determination for resin flow of prepreg (ISO 15034:1999, MOD)
ISO 15040 Composites - Prepregs - Determination of gel time
Note: GB/T 32788.1-2016, Test method for properties of prepreg - Part 1: Determination of gel time (ISO 15040:1999, MOD)
ISO 15114 Fibre-reinforced plastic composites - Determination of the mode II fracture resistance for unidirectionally reinforced materials using the calibrated end-loaded split (C-ELS) test and an effective crack length approach
Note: GB/T 39484-2020, Fibre-reinforced plastic composites - Determination of the mode II fracture resistance for unidirectionally reinforced materials using the calibrated end-loaded split (C-ELS) test and an effective crack length approach (ISO 15114:2014, IDT)
ISO 16012 Plastics - Determination of the linear dimensions of test specimens
ISO 18352 Carbon-fibre-reinforced plastics - Determination of compression-after-impact properties at a specified impact-energy level
EN 821-1 Advanced technical ceramics - Monolithic ceramics - Thermo-physical properties - Part 1: Determination of thermal expansion
