Open AccessA method based on ASTME1012 to adjust the alignment of the material testing machine
Author(s) -
Jian Xu,
Yinming Zhao,
Jixin Chai,
Kexing Chen
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/892/1/012101
Subject(s) - strain gauge , transducer , bending , universal testing machine , position (finance) , concentric , structural engineering , computer science , materials testing , mechanical engineering , acoustics , engineering , mathematics , materials science , physics , geometry , composite material , finance , economics , ultimate tensile strength
A method by using strain-gauged transducer to adjust the alignment of the materials testing machine is introduced in this paper. In order to improve the accuracy of the material test, the alignment of the material testing machine should be adjusted before tests. A transducer with three levels of strain gauges is applied before the specimens are tested. By calculating the bending stress according to the equation in ASTME1012,an adjustment suggestion to reduce the angular misalignment and concentric misalignment is given by the calculation results. Through adjusting the direction and position of the grips until the value of the strain gauges meet the requirement, the misalignment of the material testing machine will be removed.