慣性矩與應力公式比較疑問 - 土木

By Andy
at 2013-12-11T14:53
at 2013-12-11T14:53
Table of Contents
http://ppt.cc/aI1x
慣性矩
http://ppt.cc/LJYH
應力
http://ppt.cc/LJYH
應變
前面 τ可以類比於 γ/2 與 -I
但想問一下為什麼慣性矩的公式前面沒有負號呢?
謝謝
--
慣性矩
http://ppt.cc/LJYH
應力
http://ppt.cc/LJYH
應變
前面 τ可以類比於 γ/2 與 -I
但想問一下為什麼慣性矩的公式前面沒有負號呢?
謝謝
--
Tags:
土木
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