首页
对于陶瓷材料而言,其弹性模量随着气孔率的上升而()。
精华吧
→
答案
→
慕课
→
未分类
对于陶瓷材料而言,其弹性模量随着气孔率的上升而()。
A.下降
B.上升
C.不变
D.先上升后下降
正确答案:下降
Tag:
材料性能与应用
弹性模量
气孔
时间:2022-01-01 22:01:22
上一篇:
零件的刚度,表征了具体零件对弹性变形的抗力。要提高零件的刚度,不仅要选用弹性模量高的材料,还可以通过()来提高。
下一篇:
生产上为了降低机械噪声,对有些机件应选用()高的材料制造,以保证机器稳定运转。
相关答案
1.
用于制造弹簧的材料必须要有
2.
材料在变形过程的总工程应变等于各个阶段工程应变之和。
3.
真应力有可能小于工程应力。
4.
真应变总是小于工程应变。
5.
真应变不一定小于工程应变。
6.
拉伸力-伸长量曲线和工程应力-应变曲线,形状相似,但两者横坐标和纵坐标的单位不同。
7.
下列材料中,其拉伸应力-应变曲线只有弹性变形阶段而不发生塑性变形的是:
8.
对于退火低碳钢而言,材料拉伸断裂前所能承受的最大应力,称为
9.
根据退火低碳钢的拉伸应力应变曲线,在其弹性阶段可以获得的力学性能指标有:
10.
Literal translation is sometimes called “word-for-word” translation or sentence-by-sentence translation.
热门答案
1.
If a culture tends to maintain close body distance, usually that culture will have more body contact and body touch.
2.
In Latin American and the Caribbean, to avoid eye contact is a sign of respect.
3.
In Thailand, touching a person’s head is considered rude.
4.
Japanese tend to have closer body distance than Latinos
5.
In a polychronic culture, people emphasize being ‘on time, on schedule’ and doing one thing at a time.
6.
You are using a hammer, but you accidentally hit your own fingers, you might say
7.
You are giving a presentation, but you clicked the wrong button and closed the Powerpoint slides, you would probably say
8.
Which of the following cultures might be the most punctual?
9.
Which of the following does not belong to body language?
10.
This is()the shenzhou V Spaceship landed.