ASTM D7745-2011 4375 Standard Practice for Testing Pultruded Composites《拉挤复合材料测试的标准操作规程》.pdf

1、Designation: D7745 11Standard Practice forTesting Pultruded Composites1This standard is issued under the fixed designation D7745; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses in

2、dicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This protocol summarizes the applicable ASTM andother standard test methods commonly used for pultrudedcomposites. The individual performance requirements to t

3、hesetest methods are defined by specific customer specifications.1.2 This protocol also defines appropriate specimen loca-tions for sampling from the pultruded composites.1.3 This protocol does not discuss all possible standard testmethods that may be utilized for pultruded composites.1.4 This stand

4、ard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE 1There is no known ISO e

5、quivalent to this guide.2. Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD495 Test

6、 Method for High-Voltage, Low-Current, Dry ArcResistance of Solid Electrical InsulationD570 Test Method for Water Absorption of PlasticsD635 Test Method for Rate of Burning and/or Extent andTime of Burning of Plastics in a Horizontal PositionD638 Test Method for Tensile Properties of PlasticsD695 Te

7、st Method for Compressive Properties of RigidPlasticsD696 Test Method for Coefficient of Linear Thermal Ex-pansion of Plastics Between 30C and 30C with aVitreous Silica DilatometerD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD792

8、 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD953 Test Method for Bearing Strength of PlasticsD2344/D2344M Test Method for Short-Beam Strength ofPolymer Matrix Composite Materials and Their LaminatesD2583 Test Method for Indentation Hardness of RigidP

9、lastics by Means of a Barcol ImpressorD2584 Test Method for Ignition Loss of Cured ReinforcedResinsD3039/D3039M Test Method for Tensile Properties ofPolymer Matrix Composite MaterialsD3916 Test Method for Tensile Properties of PultrudedGlass-Fiber-Reinforced Plastic RodD3918 Terminology Relating to

10、Reinforced Plastic Pul-truded ProductsD4065 Practice for Plastics: Dynamic Mechanical Proper-ties: Determination and Report of ProceduresD5379/D5379M Test Method for Shear Properties of Com-posite Materials by the V-Notched Beam MethodD5420 Test Method for Impact Resistance of Flat, RigidPlastic Spe

11、cimen by Means of a Striker Impacted by aFalling Weight (Gardner Impact)D6641/D6641M Test Method for Compressive Propertiesof Polymer Matrix Composite Materials Using a Com-bined Loading Compression (CLC) Test FixtureD7136/D7136M Test Method for Measuring the DamageResistance of a Fiber-Reinforced P

12、olymer Matrix Com-posite to a Drop-Weight Impact EventD7332/D7332M Test Method for Measuring the FastenerPull-Through Resistance of a Fiber-Reinforced PolymerMatrix CompositeE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsG154 Practice for Operating Fluorescent Light Apparatu

13、sfor UV Exposure of Nonmetallic Materials2.2 UL Standards:UL94 Tests for Flammability of Plastic Materials for Partsin Devices and Appliances33. Terminology3.1 Terminology relating to pultruded composites is foundin Terminology D3918.1This practice is under the jurisdiction ofASTM Committee D20 on P

14、lastics andis the direct responsibility of Subcommittee D20.18.02 on Pultruded Shapes.Current edition approved Sept. 1, 2011. Published September 2011.DOI:10.1520/D7745-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For An

15、nual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,WA 98607-8542, http:/.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1942

16、8-2959, United States.4. Significance and Use4.1 This practice is intended to aid in the selection of testprotocols for reinforced pultruded composites.4.2 This practice is intended to define the locations fromwhich test specimens shall be taken from the reinforcedpultruded composite.5. General Requ

17、irements5.1 All test specimens shall conform to the geometry andspecimen quantity specified by the test methods of Section 2.5.1.1 See Section 6.5.2 All test specimens shall have a constant cross-sectionprior to machining the specimens.5.3 The test specimens shall be machined from a flatconstant thi

18、ckness wall. The edges of the gage area of the testspecimen shall be no closer than 3.18 mm (18 in.) from anydeviation of the flat surface.5.3.1 At least one specimen shall be taken from each side orflange of the pultruded shape.5.4 Multiple sets of test specimens are required when:5.4.1 The pultrud

19、ed composite has two or more differentthicknesses. A different set of specimens is required for eachthickness of the pultruded shape.5.4.2 The pultruded composite inherently has different re-inforcement arrangements in different areas of the part such asthe flange and web of W/I-Beams.5.4.3 There ar

20、e material overlaps required within the lami-nate for the pultruded composites such as tubes. The overlaparea reinforcement is different from the remainder of the part.5.4.4 Different reinforcement types or ratios are used fordifferent sizes within the same general part geometry (forexample, large a

21、nd small tubes).5.5 The flammability shall be tested on the thinnest wall ofthe thinnest pultruded composite of the same material configu-ration.6. Simulated Plate Test6.1 A simulated flat test plate shall be used when therequired specimen geometry cannot be acquired from thepultruded composite. Rou

22、nd tubes are an example.6.2 The simulated test plate shall be used for all variationsas identified in 5.4.6.3 The simulated flat test plate shall have the same thick-ness and composite as the original pultruded shape.7. Data Reporting7.1 The data shall be reported as required by the specific testmet

23、hods.7.2 The report shall include the source of the specimens (forexample, an actual pultruded composite or a flat plate simula-tion).7.2.1 The report shall state if the off-axis reinforcementoverlap has been considered if a flat plate simulation has beenused.ASTM International takes no position res

24、pecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This

25、standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Intern

26、ational Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown be

27、low.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D7745 112