BS ISO 3597-2-2003 Textile-glass-reinforced plastics - Determination of mechanical properties on rods made of roving-reinforced resin - Determination of flexural strength《纺织玻璃纤维增强塑.pdf

1、BRITISH STANDARD BS ISO 3597-2:2003 Textile-glass-reinforced plastics Determination of mechanical properties on rods made of roving-reinforced resin Part 2: Determination of flexural strength ICS 59.100.10; 83.120 BS ISO 3597-2:2003 This British Standard was published under the authority of the Stan

2、dards Policy and Strategy Committee on 30 October 2003 BSI 30 October 2003 ISBN 0 580 42832 X National foreword This British Standard reproduces verbatim ISO 3597-2:2003 and implements it as the UK national standard. It supersedes BS 2782-10 Method 1008B:1996 which is withdrawn. The UK participation

3、 in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which impl

4、ement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purpo

5、rt to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee

6、 any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv,

7、 pages 1 to 3 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 3597-2:2003(E)INTERNATIONAL STANDARD ISO 3597-2 Second edition 2003-10-01 Textile-glass-rei

8、nforced plastics Determination of mechanical properties on rods made of roving-reinforced resin Part 2: Determination of flexural strength Plastiques renforcs verre textile Dtermination des proprits mcaniques sur joncs de stratifils Partie 2: Dtermination de la rsistance en flexion BSISO35972:2003ii

9、 ISO 3597-2:2003(E) I SO 3002 All irhgts seredevr iiiContents Page Foreword iv 1 Scope 1 2 Normative references. 1 3 Apparatus. 1 4 Preparation and conditioning of test specimens 1 5 Procedure. 2 6 Expression of results 3 7 Precision 3 8 Test report 3 BSISO35972:2003iiiISO 3597-2:2003(E) vi I SO 300

10、2 All irhgts seredevrForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a

11、subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission

12、 (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical com

13、mittees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not

14、 be held responsible for identifying any or all such patent rights. ISO 3597-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres. This second edition cancels and replaces the first edition (ISO 3597-2:1993), which has been technically re

15、vised. ISO 3597 consists of the following parts, under the general title Textile-glass-reinforced plastics Determination of mechanical properties on rods made of roving-reinforced resin: Part 1: General considerations and preparation of rods Part 2: Determination of flexural strength Part 3: Determi

16、nation of compressive strength Part 4: Determination of apparent interlaminar shear strength BSISO35972:2003ivINTENRATIONAL TSANDADR IS-7953 O2:(3002E)I SO 3002 All irhgts seredevr 1Textile-glass-reinforced plastics Determination of mechanical properties on rods made of roving-reinforced resin Part

17、2: Determination of flexural strength 1 Scope This part of ISO 3597 specifies a method for determining the flexural strength of composite rods of circular cross-section made of roving-reinforced resin. The test may be carried out on “as-moulded” rods, or on rods that have been pretreated by immersio

18、n in boiling water (or another medium) for a specified time. The test is intended for inspection and quality control of rovings or for evaluating their suitability for use in a resin system. The results obtained are not intended for the generation of design data. 2 Normative references The following

19、 referenced documents are indispensable for the application 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 3597-1, Textile-glass-reinforced plastics Determination of

20、 mechanical properties on rods made of roving-reinforced resin Part 1: General considerations and preparation of rods ISO 14125, Fibre-reinforced plastic composites Determination of flexural properties 3 Apparatus 3.1 Flexural-testing apparatus, as specified in ISO 14125, with the following addition

21、al characteristics: 3.1.1 The load applicator shall be a steel rod waisted in the middle to ensure a distribution of stresses. A load applicator suitable for a 6-mm-diameter test specimen is shown in Figure 1. It is important that the radius R of the waist is not more than 0,25 mm larger than the ac

22、tual (measured) radius of the test specimen. 3.1.2 The span between the supports shall be 16 times the diameter of the test specimen. 3.2 Micrometer or vernier gauge, capable of measuring to the nearest 0,1 mm. 4 Preparation and conditioning of test specimens Prepare and condition a suitable number

23、of specimens in accordance with the method given in ISO 3597-1. For each type of test (“as-moulded” or pretreated), the minimum required number of specimens is eight. If specific statistical limits are agreed between interested parties, additional specimens may be tested to permit statistical analys

24、is of the results. The required specimen length is 20 times its diameter, i.e. 120 mm for a rod of diameter 6 mm. BSISO35972:20031ISO 3597-2:2003(E) 2 I SO 3002 All irhgts seredevrDimensions in millimetres NOTE When specimens with a different diameter are tested, a load applicator of different dimen

25、sions needs to be used. Figure 1 Example of load applicator for testing specimens of diameter 6 mm 5 Procedure 5.1 Before carrying out the flexural-strength test, measure the diameter of each test specimen with a micrometer or vernier gauge (3.2) to the nearest 0,1 mm at two points around the circum

26、ference located 90 apart at the centre of the specimen. Use the average of these two measurements in the calculation of the results. 5.2 Carry out the flexural-strength test on the specimens in accordance with ISO 14125, modified as specified in 3.1, in the same standard laboratory atmosphere as tha

27、t used for specimen conditioning. The speed of the load applicator shall be 5 mm/min. Polyethylene film may be placed between the support and the rod to avoid compressive failure. No information is available about the influence on the results when using such film. 5.3 The person requiring the test m

28、ay require that the mode of failure be recorded (see Figure 2). a) Tensile fracture of fibres b) Tensile fracture (including interlaminar shear) c) Tensile fracture at outermost layer d) Compressive fracture (including interlaminar shear)e) Compressive fracture f) Interlaminar-shear fracture Figure

29、2 Examples of possible failure modes (Tensile- and compression-initiated failures, remote from the loading points, are acceptable failure modes. Failures initiated by interlaminar shear are not acceptable.) BSISO35972:20032ISO 3597-2:2003(E) I SO 3002 All irhgts seredevr 36 Expression of results For

30、 each test specimen, calculate the flexural strength F , expressed in megapascals, using the equation: F 3 8 F l d = where F is the breaking force, in newtons; l is the span, in millimetres; d is the diameter, in millimetres, of the test specimen. 7 Precision The precision of this test method is not

31、 known because inter-laboratory data are not available. When inter- laboratory data are obtained, a precision statement will be added at the following revision. 8 Test report The test report shall include the following information: a) a reference to this part of ISO 3597; b) all information necessar

32、y for complete identification of the roving tested; c) all information necessary for complete identification of the resin used; d) the diameter of the mould used to prepare the test rods; e) whether a release agent was used and, if so, details of the agent used; f) the curing and postcuring conditio

33、ns; g) the test atmosphere; h) the test results: 1) for “as-moulded” specimens, the glass content, diameter, flexural strength and, if required, mode of failure of each specimen tested and (except for the mode of failure) the average value; 2) if testing was also carried out after pretreatment: the

34、medium used; the length of the pretreatment; the individual and average values of the flexural strength after pretreatment. BSISO35972:20033BS ISO 3597-2:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing Bri

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