泡沫鋁在靜態(tài)載荷作用下力學(xué)性能的實(shí)驗(yàn)研究.pdf

1、太原理工大學(xué)碩士學(xué)位論文泡沫鋁在靜態(tài)載荷作用下力學(xué)性能的實(shí)驗(yàn)研究姓名：李宇燕申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：固體力學(xué)指導(dǎo)教師：樹學(xué)鋒2001.4.1查墮絲王叁蘭堡!：堡塞ABSTRACTInthispaper，experimentonmechanicalpropertyunderstaticloadingwasperformedmoreover，intheorymaterialcharacteristicforfoamedaluminiumWa

2、sanalyzedByanalysisitWasfoundthattheoryisinagreementwithexperimentInstaticexperiment，effectsofporosityandceltsizeonmaterialpropertiesforfoamedaluminiurnwerestudiedmoreover，relationbetweenvolumeandstrainunderuniaxialcompr

3、essionforfoamedaluminiumwasstudiedbyexperimentItwasconcludedfromexperimentthatfoamedaluminiamunderuniaxialcompressionundergoesthreestages，thatis，linearelasticstage，plateaustage，densificationstagefoamedaluminiumhaven’tdis

4、tinctyieldpoint，tensilestrengthissmall，ithavehardlyextensionratewhencellsizeisthesame，elasticmodulusultimatestrength，yields訂essdecreasewithporosity’Sincrease，whenporosityisthesameelasticmodulus，ultimatestrength，yieldstre

5、ssdecreasewithcellsize’Sincrease，volumeforfoamedaluminiumunderuniaxialcompressiondecreasesanddensityincreaseswhenstrainincreases，foamedaluminium’sstrengthissmallerthancellwallmaterial’sstrengthPhotosoncellstructure’Sdefo

6、rmationforfoamedaluminiumweretakenbyscanningelectronmicroscopyItWasindicatedthatporosityishigher，compressionstrengthissmaller，cellsizeishigher，compressionstrengthissmallerIntheprocessoftheoreticalanalysisformaterialfeatu