爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.Tests are carried out to study the main mechanical properties of steel fiber reinforced concrete pole fabricated by centrifugal shaping method without tension thread: cracking strength,crack distribution and width,top-end deflection and ultimate resistance.
通过试验研究了无拉线离心成型钢筋钢纤维混凝土电杆的力学性能,包括抗裂度、裂缝宽度及其分布形态、杆顶变形和极限承载力等。收藏指正
2.Abstractcompact tension specimens with columnar grain oricntation inclined to crack plane at an al1gle(θ)in the range of 0℃～60℃ were cut from a cast HK40 tube.
从离心铸造HK40炉营上截取柱状晶方向与预制裂纹方向（炉管径向）呈不同角度（θ）的紧凑拉伸型试样，在871℃进行了恒载荷蠕变裂纹扩展试验。收藏指正
3.The axial-symmetric ring-shaped interface crack problems are discussed under tension loading.
摘要讨论受拉伸载荷作用的轴对称环形片状界面裂纹问题。收藏指正
4.The results show that the tension intensity of slice is up to 100 MPa and the im- pact intensity up to 25 kJ/m~2,and linear relation between crack section and the fractal dimension is established.
结果表明,板材拉伸强度达到100 MPa以上,冲击强度为25 kJ/m~2。 材料拉伸强度与断面视图的分维数呈正线性关系。收藏指正
5.The fatigue crack growth rate has been investigated for SS400 and its welded joint based on the ASTM E647-83 specification. In the test the compact tension (CT) specimens were used.
笔者参照美国材料试验学会标准ASTME647 83的规定,采用紧凑拉伸CT试件对SS400钢及其焊接接头CT试件的疲劳裂纹扩展速率进行了测试。收藏指正
6.Firstly, the parameters controlling ductile crack growth are gotten from the resistance curve result of standard 3 point bending specimen, then the resistance curves of the tension specimen for the welded joint with different strength mis-matching are predicted based on the cell model.
首先由标准三点弯曲试件的阻力曲线，得出反映材料微观损伤的特殊单元模型控制参量，再根据该参量对不同接头强度匹配下双边缺口拉伸试件的阻力曲线进行了定量预测，其结果与试验结果相当吻合。收藏指正
7.Abstract: Combining engineering practices, the main reason for concrete crack during the construction in winter of the mass concrete with box foundation floor is analyzed, the key is temperature difference between insides and outsides.Some measures to prevent concrete crack from occuring is put forward.These measures′ feasibilities by means of temperature difference computation, concrete tension stress checking computation, temperature recordings are validated.
文摘:结合工程实际分析了箱形基础底板大体积砼在冬期施工阶段产生温度裂缝的主要原因，提出了砼冬期施工的关键是防止产生温度裂缝，对防止砼产生裂缝的主要措施进行了探讨，并通过砼体内外温度差的计算，砼抗拉强度验算和测温记录验证了这些措施的可行性.收藏指正
尝试查询