ISO 10618:2004 specifies a method of test for the determination of the tensile strength, tensile modulus of elasticity and strain at maximum load of a resin-impregnated yarn specimen. The method is applicable to yarns (continuous and staple-fibre yarns) of carbon fibre for use as reinforcements in composite materials.
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Principle
6 Apparatus and materials
6.1 Resin
6.2 Impregnation apparatus
6.3 Curing oven with temperature control
6.4 Tensile-testing machine
6.5 Balance
6.6 Ruler
7 Test specimens
7.1 Number of test specimens
7.2 Length of test specimens
7.3 Impregnation of test specimens
7.4 Determination of other fibre properties
7.5 Criteria for selection of test specimens
7.6 Preparation of test specimens with tabs
8 Atmosphere for conditioning and testing
9 Procedure for tensile testing
10 Expression of results
10.1 Tensile strength
10.2 Tensile modulus of elasticity (see Figure 1)
10.3 Strain at maximum load (percent elongation at failure)
11 Precision
12 Test report
Annex A Examples of heat-curable epoxy-resin systems (informative)
Annex B Examples of impregnating apparatus (informative)
Annex C Examples of tabs and tab-preparation apparatus (informative)
ISO 10119:2002 Carbon fibre -- Determination of density
ISO 10548:2002 Carbon fibre -- Determination of size content
ISO 1889:1997 Reinforcement yarns -- Determination of linear density
ISO 10119:2002 Carbon fibre -- Determination of density
ISO 10548:2002 Carbon fibre -- Determination of size content
ISO 1889:1997 Reinforcement yarns -- Determination of linear density
ISO 291:1997 Plastics -- Standard atmospheres for conditioning and testing
ISO 527-1:1993 Plastics -- Determination of tensile properties -- Part 1: General principles