EN 13473-1-2001 pdf download.Reinforcement – Specifications for multi-axial multi-ply fabrics- Part 1 : Designation.
This part 1 of EN 13473 establishes a method of designation for multi-axial multi-ply fabrics that shall be used for specifications for the reinforcement of materials. The method of designation defines the structure of the multi-axial multi-ply construction and the binding system.
This designation system applies to multi-axial multi-ply fabrics made of reinforcement yarns, tows, rovings, fibre fleeces, films, foams or other materials which are intended to provide reinforcement in composite materials and which is bound to a multi-ply construction.
The designation of a multi-axial multi-ply fabric is structured in a product of multi-axial multi-ply fabrics. It is not intended that this hierarchy takes into account all the attributes of individual multi-axial multi-ply fabrics. Therefore multi-axial multi-ply fabrics having the same designation do not necessarily give the same performance, This part 1 of EN 13473 does not give engineering data, performance data or data that may be required to specify multi-axial multi-ply fabrics for a particular application or method of processing. If such additional properties are required they have to be determined in accordance with the test methods specified in EN 13473-2.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
EN 13473-2, Reinforcement — Specifications for multi-axial multi-ply fabncs — Part 2: Methods of test and general requirements.
lSO/DIS 1268-1:1997, Fibre-reinforced plastics — Methods of producing test plates — Part 1: General conditions.
ISO 472, Plastics — Vocabulary.
ISO 1043-2, Plastics — Symbols — Part 2: Fillers and reinforcing materials.
ISO 4921, Knitting — Basic concepts — Vocabulary.
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in ISO 472, EN 13473-2 and the following apply.
3.1
multi-axial multi-ply (not woven) fabric
textile structure constructed out of one or more laid parallel non-crimped not-woven thread plies with the possibility of different orientations, different thread densities of the single thread plies and possible integration of fibre fleeces, films, foams or other materials, fixed by loop systems or by chemical binding systems. The threads can be oriented parallel or alternating crosswise. These products can be produced on machines with insertion devices (parallel-weft or cross-weft) and warp knitting machines or chemical binding systems
3.2
ply construction
textile structure constructed out of one or more laid parallel non-crimped thread plies, which is differently oriented, with different thread densities of the single thread plies and In which integration of Fibre fleeces, films, foams or other materials is possible. The orientation of the single thread plies is related to the production direction of 0. The description of the orientation of the thread plies is derived from lSO/DIS 1268-1:1997 using the jangle orientation (90 maximum angle) which is defined as follows: The thread plies oriented In the range between [0,90fl are described as “+‘ or “-‘-direction in relation to 0°. The orientation is defined as “+“. if the threads are oriented In quadrant +‘, respectively -“, if the threads are laid in quadrant “-“ (see Figure 1).
In position 2 of the ply description the mass per unit area of the single ply is identified by a number equal to the mass in grams per square metre.
Position 3 is indicating the orientation of the thread plies in case of the use of reinforcement fibres or the material description in case of the use of cover or inlay plies (see ISO 1043-2). For alternating crosswise oriented thread plies the two different orientations of the threads in one single layer are described by the two thread orientations divided by a single sIash (I)’.
4.3 Data-Block 2
In this Data-Block the binding system Is defined and described by 3 Positions. Positions 1, 2 and 3 are separated by a comma (,)‘.
In position 1 of the binding description the material types and grades used are identified by abbreviation according to Table 2. In the case of combinations of different materials (hybrid materials), the different materials and grades shall be identified by their abbreviation with each constituent separated by a slash (I)”. For each constituent the abbreviation shall be followed by a number equal to the percentage content by weight rounded to the nearest 1 %. The materials shall appear in descending order of their content by weight.
In position 2 of the binding description the mass per unit area of the binding is identified by a number equal to the mass in grams per square metre.
In position 3 of this Data-Block the binding type is identified by letters according to Table 3.EN 13473-1-2001 pdf download.
EN 13473-1-2001 pdf download
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