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【英文标准名称】:Plastics-Determinationoffracturetoughness(GicandKic)-Linearelasticfracturemechanics(LEFM)approach
【原文标准名称】:塑料.断裂韧性的测定(G和K).线性弹性断裂力学(LEFM)法
【标准号】:BSISO13586-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-06-15
【实施或试行日期】:2000-06-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:断裂试验;测定;机械试验;定义;试验;塑料;弹性(流体);断裂韧性;机械处理;抗断裂强度
【英文主题词】:Breakingstrength;Breakingtests;Definitions;Determination;Elasticproperties(fluids);Fracturetoughness;Mechanicaltesting;Mechanicaltreatment;Plastics;Testing
【摘要】:ThisInternationalStandardspecifiestheprinciplesfordeterminingthefracturetoughnessofplasticsinthecrack-openingmode(modeⅠ)underdefinedconditions.Twotestmethodswithcrackedspecimensaredefined,namelythree-point-bendingtestsandcompact-specimentensiletestsinordertosuitdifferenttypesofequipmentavailableordifferenttypesofmaterial.Themethodsaresuitableforusewiththefollowingrangeofmaterials:—rigidandsemi-rigidthermoplasticmoulding,extrusionandcastingmaterials;—rigidandsemi-rigidthermosettingmouldingandcastingmaterials.Certainrestrictionsonthelinearityoftheload-displacementdiagram,onthespecimenwidthandonthethicknessareimposedtoensurevalidity(see6.4)sincetheschemeusedassumeslinearelasticbehaviourofthecrackedmaterialandastateofplanestrainatthecracktip.Finally,thecrackmustbesharpenoughsothatanevensharpercrackwillnotresultinsignificantlylowervaluesofthemeasuredproperties.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:28P;A4
【正文语种】:英语