SentryGlas(R)_Plus_Elastic_Properties_2008 dupont.pdf

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1、SentryGlas®PlusElasticProperties(SGP5000)DuPontGlassLaminatingSolutionsThepreferredsupplierandinnovatorofglasslaminatingsolutionsforabetter,saferworldDuPontGlassLaminatingSolutions2PolymerInterlayerBehaviorAllinterlayersareviscoelastic•Stiffness(modulus)andPoissonratiovaryasafunc

2、tionoftemperatureandloadduration(creep)•Evaluatepropertiesoverarangeoftesttemperatureandtimeusingdynamicmechanicalanalysisandcreeptests(ASTMD4065)•“Small”strainvalues(<20%engineeringstrain)Young’smodulus,E,shearmodulus,G,&Poissonratio,ν.•ExtractE,Gandνforspecifiedtemperatureandlo

3、adduration•Chooseappropriateelasticpropertyvaluesfordesigncaseandassigntoaneffectiveelasticinterlayer•ImportanttoassesthelikelihoodofachievingfulldesignloadatthedesigntemperatureandloaddurationApril14th2008DuPontGlassLaminatingSolutions3Young’sModulus:SentryGlas®PlusLoadDurationY

4、oung’sModulusE(MPa)1s3s1min1hr1day1mo10yrs10°C692.681.651.597.553.499.448.20°C628.612.567.493.428.330.256.24°C581.561.505.416.327.217.129.30°C442.413.324.178.148.34.715.940°C228.187.91.627.813.69.868.8450°C108.78.833.812.68.456.546.00Temperature60°C35.324.510.95.103.873.242.9170°

5、C11.38.785.642.521.771.441.3580°C4.653.962.490.960.750.630.54April14th2008DuPontGlassLaminatingSolutions4ShearModulus:SentryGlas®PlusLoadDurationShearModulusG(MPa)1s3s1min1hr1day1mo10yrs10°C240.236.225.206.190.171.153.20°C217.211.195.169.146.112.86.624°C200.193.173.142.111.73.243

6、.330°C151.141.110.59.949.711.65.3140°C77.063.030.79.284.543.292.9550°C36.226.411.34.202.822.182.00Temperature60°C11.88.183.641.701.291.080.9770°C3.772.931.880.840.590.480.4580°C1.551.320.830.320.250.210.18April14th2008DuPontGlassLaminatingSolutions5PoissonRatio:SentryGlas®PlusLoa

7、dDurationPoissonRatio,ν1s3s1min1hr1day1mo10yrs10°C0.4420.4430.4460.4500.4540.4580.46320°C0.4480.4490.4530.4590.4640.4730.47924°C0.4520.4530.4580.4650.4730.4820.48930°C0.4630.4660.4730.4850.4880.4970.49940°C0.4810.4840.4920.4980.4990.4990.49950°C0.4910.4930.4970.4990.4990.5000.500

8、Temperature60°C0.4970.4980.4990.5000.500