??????????10*1500*6000??q460qc????????????????
??????????????12*2200*9690<BR>16*2200*7430<BR>12*2200*9780<BR>28*1750*5600<BR>18*2000*8000<br><br>???????????????????????????????????????<BR>1?????????????1.95??105MPa???????????????????????????????<BR>??1.96 19.3 19.1??/3=1.93??105MPa?? <BR>2?????????????????μ???????????????<BR>??L=P*L*(1-e-(kx ???))/(kL ???)/??
??????????????
12*2200*9690
16*2200*7430
12*2200*9780
28*1750*5600
18*2000*8000
??????????????
?????????????????????????
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
????????????
????????
??????????????????????????????????????????????????????????????????????????????λ???????????????????????????????????????????????
??????????10*1500*6000??q460qc????????????????
