BS EN ISO 21765:2021
$142.49
Textiles. Determination of fabric deformability by forced mechanical distension
Published By | Publication Date | Number of Pages |
BSI | 2021 | 28 |
This document specifies a method for the automatic determination of the deformability of textile fabrics, including continuous-fibre reinforcement textiles. This method is not applicable to resin impregnated fabrics.
The method is suitable for use with fabrics such as woven or knitted fabrics, nonwovens, non-crimp fabrics, fabrics made of glass rovings or untwisted carbon filament yarns intended for reinforced composite materials. When applying the method to multi-axial non-crimp fabrics, the evaluation of the fibre orientation and gaps only incorporates the uppermost layer.
The method can be used for fabrics treated with powder binder.
PDF Catalog
PDF Pages | PDF Title |
---|---|
2 | National foreword |
4 | European foreword |
7 | Foreword |
8 | Introduction |
9 | 1 Scope 2 Normative references 3 Terms and definitions |
11 | 4 Principle 5 Apparatus 5.2 Deformability test apparatus |
13 | 6 Test specimen |
14 | 7 Procedure 7.1 Inserting the test specimen 7.2 Specifications of the test 7.2.1 Test parameters 7.2.2 Evaluation parameters |
15 | 7.3 Test procedure 8 Calculation and specification of the results 8.1 Non-crimp fabric 8.1.1 General |
16 | 8.1.2 Deformation force 8.1.3 Gap width 8.1.4 Gap portion 8.1.5 Gap shape 8.1.6 Fibre-angle change |
17 | 8.1.7 Undulation 8.1.8 Loop formation 8.1.9 Waviness 8.1.10 Out-of-roundness 8.2 Woven fabrics 8.2.1 Characteristic value names, symbols and units |
18 | 8.2.2 Deformation force 8.2.3 Gap portion 8.2.4 Gap area 8.2.5 Gap shape 8.2.6 Fibre-angle change 8.2.7 Undulation 8.2.8 Shearing angle 8.2.9 Waviness |
19 | 8.2.10 Out-of-roundness 8.2.11 Residual deformation 8.3 Knitted fabrics 8.3.1 Table with characteristic value names, symbols and units 8.3.2 Deformation force 8.3.3 Gap portion 8.3.4 Gap area 8.3.5 Gap shape |
20 | 8.3.6 Waviness 8.3.7 Out-of-roundness 8.3.8 Residual deformation 8.4 Nonwovens 8.4.1 Table with characteristic value names, symbols and units 8.4.2 Deformation force 8.4.3 Anisotropy |
21 | 8.4.4 Thinning-out 8.4.5 Waviness 8.4.6 Out-of-roundness 8.4.7 Residual deformation 8.5 Evaluation |
22 | 9 Test report |
24 | Annex A (informative) Example images |
26 | Annex B (informative) Statistical data |
27 | Bibliography |