MechanicalbehaviorsofC/SiCcompositessubjectedtouniaxialcompression

athightemperaturesandhighstrainrates

SUO Tao; DAI Lei; SHI Chun-sen; LI Yu-long; YANG Jian-bo

doi:10.11883/1001-1455(2012)03-0297-06

Volume 32 Issue 3

May 2014

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SUO Tao, DAI Lei, SHI Chun-sen, LI Yu-long, YANG Jian-bo. MechanicalbehaviorsofC/SiCcompositessubjectedtouniaxialcompressionathightemperaturesandhighstrainrates[J]. Explosion And Shock Waves, 2012, 32(3): 297-302. doi: 10.11883/1001-1455(2012)03-0297-06

Citation:

SUO Tao, DAI Lei, SHI Chun-sen, LI Yu-long, YANG Jian-bo. MechanicalbehaviorsofC/SiCcompositessubjectedtouniaxialcompression athightemperaturesandhighstrainrates[J]. Explosion And Shock Waves, 2012, 32(3): 297-302. doi: 10.11883/1001-1455(2012)03-0297-06

Citation:

SUO Tao, DAI Lei, SHI Chun-sen, LI Yu-long, YANG Jian-bo. MechanicalbehaviorsofC/SiCcompositessubjectedtouniaxialcompression athightemperaturesandhighstrainrates[J]. Explosion And Shock Waves, 2012, 32(3): 297-302. doi: 10.11883/1001-1455(2012)03-0297-06

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MechanicalbehaviorsofC/SiCcompositessubjectedtouniaxialcompression athightemperaturesandhighstrainrates

doi: 10.11883/1001-1455(2012)03-0297-06

1.
SchoolofAeronautics,NorthwesternPolytechnicalUniversity,

Funds:

NationalNaturalScienceFoundationofChina(10902090,10932008)

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Corresponding author: SUO Tao
Publish Date: 2012-05-25

Abstract

Abstract

ByusinganelectronicuniversaltestingmachineandasplitHopkinsonpressurebardevice, aseriesofuniaxialcompressionexperimentswerecarriedouttoexplorethemechanicalbehaviorsofa 2DwovenC/SiCcompositeinthetemperaturerangefrom293to1273Kandthestrainraterange from10-4to103s-1.Theexperimentalresultsshowasfollows.Thecompositehasexcellenthigh temperaturemechanicalpropertiesinthetestedtemperaturerange.Thecompressivestrengthofthe compositedecreasesnomorethanthirtypercentat1273Kunderquasi-staticcompressionifcompared withthatatroomtemperature.Catastrophicbrittlefailureisnotobservedforthespecimenstestedat differentstrainrates.Withtheincreaseoftheexperimentaltemperature,thecompressivestrengthof the2DC/SiCcompositedecreases,butthedependenceofcompressivestrengthonstrainrateincreases. Atthetemperaturesabove1073K,thesensitivityfactorofcompressivestrengthonstrainrate increasesremarkably.Itisproposedthatthesharpincreaseinthedependenceofcompressivestrength onstrainrateisduetotheoxidationofthecomposites.
- solid mechanics,
- compressivestrength,
- uniaxialcompression,
- C/SiCcomposite,
- high temperature,
- highstrainrate