ASTM_D_3763_-_15.pdf

Designation:D376315Standard Test Method forHigh Speed Puncture Properties of Plastics Using Load andDisplacement Sensors1This standard is issued under the fixed designation D3763;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 indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers the determination of punctureproperties of rigid plastics over a range of test velocities.1.2 Test data obtained by this test method are relevant andappropriate for use in engineering design.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This standard 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.NOTE1This standard and ISO 6603.2 address the same subjectmatter,but differ in technical content.The technical content and resultsshall not be compared between the two test methods.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD4000 Classification System for Specifying Plastic Materi-alsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ISO Standard:3ISO 6603.2 PlasticsDetermination of Multi-axial ImpactBehavior of Rigid Plastics Part 2:Instrumented PunctureTest3.Terminology3.1 DefinitionsFor definitions see Terminology D883 andfor abbreviations see Terminology D1600.4.Significance and Use4.1 This test method is designed to provide load versusdeformation response of plastics under essentially multi-axialdeformation conditions at impact velocities.This test methodfurther provides a measure of the rate sensitivity of the materialto impact.4.2 Multi-axial impact response,while partly dependent onthickness,does not necessarily have a linear correlation withspecimen thickness.Therefore,results should be comparedonly for specimens of essentially the same thickness,unlessspecific responses versus thickness formulae have been estab-lished for the material.4.3 For many materials,there may be a specification thatrequires the use of this test method,but with some proceduralmodifications that take precedence when adhering to thespecification.Therefore,it is advisable to refer to that materialspecification before using this test method.Table 1 of Classi-fication System D4000 lists the ASTM materials standards thatcurrently exist.5.Interferences5.1 Inertial EffectsA loading function encountered whenperforming an instrumented impact test that may,in somecases,confuse the interpretation of the test data.For furtherdefinition and examples of inertial effects,refer to AppendixX1.6.Apparatus6.1 The testing machine shall consist of two assemblies,onefixed and the other driven by a suitable method to achieve therequired impact velocity(that is,hydraulic,pneumatic,mechanical,or gravity):6.1.1 Clamp Assembly,consisting of two parallel rigidplates with a 76.0 6 3.0 mm diameter hole in the center ofeach.The hole edges shall be rounded to a radius of 0.8 6 0.4mm.Sufficient force must be applied(mechanically,pneumatically,or hydraulically)to prevent slippage of thespecimen in the clamp during impact.1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.10 on Mechanical Properties.Current edition approved Sept.1,2015.Published September 2015.Originallyapproved in 1979.Last previous edition approved in 2014 as D3763 14.DOI:10.1520/D3763-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*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 6.1.2 Plunger Assembly,consisting of a 12.70 6 0.13 mmdiameter steel rod with a hemispherical end of the samediameter positioned perpendicular to,and centered on,theclamp hole.6.1.3 Other GeometriesThe dimensions given in 6.1.1 and6.1.2 shall be the standard geometry.If other plunger or holesizes are used they shall be highlighted in the report.Correla-tions between various geometries have not been established.6.1.4 Load Sensing SystemA load cell of sufficiently highnatural resonance frequency,as described in A1.1,used to-gether with