圆柱形试样多点测量方式加载同轴度的通用计算方法

THE GENERAL CALCULATION METHOD FOR LOADING COAXALITY OF A CYLINDRICAL SPECIMEN WITH MULTIPLE-POINT MEASURING WAY

梁新邦

摘要

对圆柱形对中传感器试样横截面圆周弯曲应变的分布进行了理论分析，导出了最大弯曲应变的表示通式，使多点测量方式的加载同轴度达到了理论上的统一表达。分别提供了表示最大弯曲应变方位角、净试验机最大弯曲应变和净试样弯曲应变的通式。指出了国外文献关于净试验机弯曲分量表示式的错误。

标签力学试验

加载同轴度

对中测量

最大弯曲应变

Mechanical test

Loading coaxality

Alignment measuring

Maximum bending strain

Abstract

The theoretical analysis on bending strain distribution around the cross-section circumference of a cylindrical alignment cell specimen with multiple-point measuring way was made. The general equation for calculating maximum bending strain had been developed to theoretically unify the expression of loading coaxality. Also both the equation for angle position of maximum bending strain and the equation for net bending contributions respectively due to the testing machine and the specimen was provided. The error in reference <参考文献原文>in regard to represent the net bending strain component due to testing machine was pointed.

中图分类号 TB121

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收稿日期 2005/5/31

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备注梁新邦(1939-)，男，教授。

引用该论文: LIANG Xin-bang. THE GENERAL CALCULATION METHOD FOR LOADING COAXALITY OF A CYLINDRICAL SPECIMEN WITH MULTIPLE-POINT MEASURING WAY[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2006, 42(8): 396～400
梁新邦. 圆柱形试样多点测量方式加载同轴度的通用计算方法[J]. 理化检验－物理分册, 2006, 42(8): 396～400

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参考文献

【1】ASTM E139-00, Standard Test Method for Conducting Creep, Creep-Rupture, and Stress Rupture[S].

【2】ASTM E606-92, Standard Practice for Strain-Controlled Fatigue Testing[S].

【3】ASTM E466-96, Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Test of Metallic Materials[S].

【4】GB/T 2039-1997,金属拉伸蠕变及持久试验方法[S].

【5】GB/T 8653-1988,金属杨氏摸量、弦线摸量、切线摸量和泊松比试验方法(静态法)[S].

【6】ASTM E1012-99, Standard Practice for Verification of Specimen Alignment under Tensile Loading[S].

【7】王梓坤主编.常用数学公式大全[M].重庆:重庆出版社, 1991.

【8】Kandil Dr. Fathy. A Procedure for the Measurement of Machine Alignment in Axial Testing[Z]. UK: Euro Test Solutions Ltd, 2001.

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