Method for measuring bolt axial fastening force through bolt axial strain

Method for measuring bolt axial fastening force through bolt axial strain

  • CN 104,931,175 A
  • Filed: 06/17/2014
  • Published: 09/23/2015
  • Est. Priority Date: 06/17/2014
  • Status: Active Application
First Claim
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1. one kind by bolt shaft to strain measurement bolt shaft to the method for fastening force, it is characterized in that, described method comprises the steps:

  • first on bolt, to install strainometer vertically, strainometer is connected with strainmeter, then bolt to be put on testing machine and bolt is loaded, add after load by strainmeter gather bolt shaft to strain data, the linear equation y=36.258x-27.7 of the power that axially fastens of degree of strain and loading is obtained according to strain data and added load data, wherein y is degree of strain, described degree of strain unit is μ

    m, and x is the power that axially fastens loaded, the described unit of force that axially fastens is KN.

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