1、Designation:D162309Standard Test Method forTensile and Tensile Adhesion Properties of Rigid CellularPlastics1This standard is issued under the fixed designation D1623;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last r
2、evision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers the determination o
3、f the tensileand tensile adhesion properties of rigid cellular materials in theform of test specimens of standard shape under definedconditions of temperature,humidity,and testing machinespeed.1.2 Tensile properties shall be measured using any of threetypes of specimens:1.2.1 Type A shall be the pre
4、ferred specimen in those caseswhere enough sample material exists to form the necessaryspecimen.1.2.2 Type B shall be the preferred specimen when onlysmaller specimens are available,as in sandwich panels,etc.1.2.3 Type C shall be the preferred specimen for the deter-mination of tensile adhesive prop
5、erties of a cellular plastic to asubstrate as in a sandwich panel or the bonding strength of acellular plastic to a single substrate.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for i
6、nforma-tion only and are not considered standard.NOTE1There is no known ISO equivalent to this test method.2.Referenced Documents2.1 ASTM Standards:2D638 Test Method for Tensile Properties of PlasticsD883 Terminology Relating to PlasticsE691 Practice for Conducting an Interlaboratory Study toDetermi
7、ne the Precision of a Test Method3.Terminology3.1 Definitions of terms applying to this test method appearin the Appendix to Test Method D638.4.Apparatus4.1 Testing MachineA testing machine of the constant-rate-of-crosshead-movement type,comprising essentially thefollowing:4.1.1 GripsGrips for holdi
8、ng the test specimen shall bethe self-aligning type;that is,they must be attached to the fixedand movable members of the testing machine in such a waythat they will move freely into alignment as soon as any loadis applied,so that the long axis of the test specimen willcoincide with the direction of
9、the applied pull through thecenter line of the grip assembly.Universal-type joints imme-diately above and below the specimen grips are recommended.The test specimen shall be held in such a way that slippagerelative to the grips is prevented,insofar as possible.For TypeA specimens,use a grip assembly
10、 like the one shown in Fig.1and Fig.2.For Type B specimens,one suitable grip assemblyis shown in Fig.3 and Fig.4.For Type C specimen,a suitablegrip assembly is shown in Fig.5.4.1.2 Load IndicatorUse a load cell or suitable load-indicating mechanism capable of showing the total tensile loadexerted on
11、 the test specimen when held in the grips.Choose anindicator that will permit precision to within 61%.4.1.3 Extension IndicatorIf measurement of the extensionis desired,use a suitable instrument for determining thedistance between two fixed points on the test specimen,orsimilarly by grip separation
12、or extensometer at any time duringthe test.4.2 Specimen CutterFor Type A specimens,use a suitablelathe cutter(see Fig.6).5.Test Specimen5.1 All surfaces of the specimen shall be free of large visibleflaws or imperfections.If it is necessary to place gage marks onthe specimen,do this in such a way as
13、 not to affect the surfacesof the test specimen.Gage marks shall not be scratched,punched,or impressed on the specimen.1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.22 on Cellular Materials-Plastics and Elastomers.Cu
14、rrent edition approved Sept.1,2009.Published September 2009.Originallyapproved in 1959.Last previous edition approved in 2003 as D1623 03.DOI:10.1520/D1623-09.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTM
15、Standards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.2 When testing materials that
16、are suspected to beanisotropic,prepare duplicate sets of specimens having theirlong axes parallel and perpendicular to the direction of the cellorientation.5.3 Preparation of Type A SpecimensThe recommendedType A test specimen shall conform to the dimensions given inFig.7.It shall be prepared by normal molding procedureswherever possible,but the“skin”effect which results cannot beMetric Equivalentsin.181412916111611.130112221421233516mm3.186.3512.714.317.525.428.738.150.857.263.576.284.1FIG.1 De
