更新1:
求這2題的過程解?
求這2提的過程解?
回答 (1)
2015-12-28 12:20 am
✔ 最佳答案
1. d/w = 2/5 = 0.4 => Look up table k = 2.2S = 2.2*10000/5*1.5 = 2959 psi
2A. D = 2, r = 0.25 => d = D - 2r = 1.5 => D/d = 1.33
r/d = 0.25/1.5 = 0.167 => Look up table: k = 2.1
St = 1000*2.1/2*0.5 = 2100 psi
收錄日期: 2021-04-30 19:58:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20151226000855AACHTao