12??14??10*1500*6000??q460qc??·?????÷???????????????????
??·????????????????????????28*2200*6000<BR>30*2200*6000<BR>32*2200*6000<BR>34*2200*6000<BR>36*2200*6000<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??
??·????????????????????????
28*2200*6000
30*2200*6000
32*2200*6000
34*2200*6000
36*2200*6000
??·????????????????????????
?????????????????????????
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
????????
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
12??14??10*1500*6000??q460qc??·??????????????????????????????
