1) four-point bending test
4点弯曲试验
2) three-point bending test
三点弯曲试验
1.
Effects of temperature and loading rate on the flexural-tensile strength,strain and stiffness modulus of ATB-25 asphalt mixture were discussed using three-point bending test.
通过沥青稳定碎石基层ATB-25沥青混合料的三点弯曲试验,研究了温度及加载速率对弯拉强度、弯拉应变及弯曲劲度模量的影响规律。
3) three point bending test
三点弯曲试验
1.
A special machine with scanning electron microscope (SEM) used was designed for three point bending test.
设计了一种可用扫描电镜(SEM)动态观察、专门用于三点弯曲试验的特殊装置。
4) three-point bending beam test
三点弯曲梁试验
1.
Based on the crack characteristics of steel deck bridge pavement and theory of fracture mechanics,the stress intensity factor K and J integral was introduced to analyze three-point bending beam test of the epoxy asphalt concrete.
基于桥面铺装的裂缝特点及断裂力学理论,引入应力强度因子K和J积分对环氧沥青混凝土三点弯曲梁试验进行分析,研究了温度和初始缝高比对其断裂特性的影响。
6) bend test
弯曲试验
1.
The roasting test and bend test results .
烘烤试验及弯曲试验表明,该工艺结合力很好。
2.
This paper firstly expatiates the object and purpose of the bend test during the welding procedure qualification.
通过对焊接工艺评定中弯曲试验评定对象和目的的阐述 ,结合国内外的焊接工艺评定标准对弯曲试验的不同要求 ,对焊接接头弯曲试验的力学模型进行了数学分析 ,得出采用不同弯曲试验标准可以得到不同的评定结果。
3.
Through the comparison between the outdated and the lastest standards it is found that althongh the years for preparation of two standards are different,bath for equivalent to the international standard ISO 7438:1985 “metallic materials-bend test” the definite answer has not found out for some questions.
通过新旧标准对比 ,发现两个标准虽然年代不同 ,但均等放采用国际标准ISO 7438:1985金属材料—弯曲试验 ,其中某些问题尚找不出确切的答案。
补充资料：弯曲试验
测定材料承受弯曲载荷时的力学特性的试验，是材料机械性能试验的基本方法之一。弯曲试验主要用于测定脆性和低塑性材料(如铸铁、高碳钢、工具钢等)的抗弯强度并能反映塑性指标的挠度。弯曲试验还可用来检查材料的表面质量。弯曲试验在万能材料机上进行，有三点弯曲和四点弯曲两种加载荷方式（见图）。试样的截面有圆形和矩形，试验时的跨距一般为直径的10倍。对于脆性材料弯曲试验一般只产生少量的塑性变形即可破坏，而对于塑性材料则不能测出弯曲断裂强度，但可检验其延展性和均匀性展性和均匀性。塑性材料的弯曲试验称为冷弯试验。试验时将试样加载，使其弯曲到一定程度，观察试样表面有无裂缝。
参考书目
R.F. Bunshan , Measurement of Mechanical Proporties，John Wiley & Sons,Inc.,New York,1971.
参考书目
R.F. Bunshan , Measurement of Mechanical Proporties，John Wiley & Sons,Inc.,New York,1971.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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