2??24???????????12*1500*6000????????????????????μ???
???????????????????????6??1500??8000 21??<BR>6??1500??8000 42??<BR>6??1500??8000 35??<BR>6??1500??8000 21??<BR>8??2000??8000 64??<br><br>????????????????????????????????????????????????<BR>1?????????????1.95??105MPa???????????????????????????????<BR>??1.96 19.3 19.1??/3=1.93??105MPa?? <BR>2?????????????????μ?????????
???????????????????????
6??1500??8000 21??
6??1500??8000 42??
6??1500??8000 35??
6??1500??8000 21??
8??2000??8000 64??
???????????????????????
?????????????????????????
1?????????????1.95??105MPa???????????????????????????????
??1.96 19.3 19.1??/3=1.93??105MPa??
2?????????????????μ???????????????
??L=P*L*(1-e-(kx ???))/(kL ???)/Ay/Eg
????????????????????????
????????????????????????????????????Ч???????????????????????ì????й?????Э??????????????????????????????????????40.7??
2??24???????????12*1500*6000?????????????????????????μ???
