材料-08木材(3) Flashcards

1
Q

针叶阔叶哪个硬?
夏材春材哪个密实?
针叶阔叶哪个不用于承重?

A

阔叶硬
夏材密实
阔叶不用于承重

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

影响木材强度的因素?

A

含水量、负荷时间、环境温度、疵病。

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

木材抗拉和抗压,顺纹好还是横纹好?
木材抗弯的时候,受压区先到极限还是受拉区先到极限?
抗剪怎么最强?

A

顺纹抗拉、抗压好。顺纹么就是树生长的方向。
受压区先到极限。
横纹切断最强,也就是砍树的方向。

How well did you know this?
1
Not at all
2
3
4
5
Perfectly