福建建设科技
福建建設科技
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FUJIAN CONSTRUCTION SCIENCE & TECHNOLOGY
2012年
2期
49-51
,共3页
张琨健%林如涛%张伟鑫%黄开栈
張琨健%林如濤%張偉鑫%黃開棧
장곤건%림여도%장위흠%황개잔
不确定度%抗拉强度%屈服强度%断后伸长率
不確定度%抗拉彊度%屈服彊度%斷後伸長率
불학정도%항랍강도%굴복강도%단후신장솔
Uncertainty%Tensile strength%Yield strength%Elongation after fracture
通过对直径16mm的热轧带肋钢筋进行一系列力学性能试验,得到钢筋的抗拉强度、屈服强度和断后伸长率试验结果。接着引入试验重复性、拉伸速率、力值测量、尺寸测量、试验机数据采集系统、数值修约这几个主要的不确定度分量来评定钢筋的抗拉强度、屈服强度和断后伸长率的测量不确定度。
通過對直徑16mm的熱軋帶肋鋼觔進行一繫列力學性能試驗,得到鋼觔的抗拉彊度、屈服彊度和斷後伸長率試驗結果。接著引入試驗重複性、拉伸速率、力值測量、呎吋測量、試驗機數據採集繫統、數值脩約這幾箇主要的不確定度分量來評定鋼觔的抗拉彊度、屈服彊度和斷後伸長率的測量不確定度。
통과대직경16mm적열알대륵강근진행일계렬역학성능시험,득도강근적항랍강도、굴복강도화단후신장솔시험결과。접착인입시험중복성、랍신속솔、력치측량、척촌측량、시험궤수거채집계통、수치수약저궤개주요적불학정도분량래평정강근적항랍강도、굴복강도화단후신장솔적측량불학정도。
In order to get the tensile strength,yield strength and elongation after fracture,we use series of hot-rolled ribbed steel bars of 16mm diameter in mechanical testing.Then many major uncertainty components like the test repeatability,stretching rate,the measuring of force,measurement of size,data acquisition system of the testing machine and numerical rounding off are introduced into evaluate the steel measurement uncertainty of tensile strength,yield strength and elongation after fracture.