Residual Clamping Force Estimation and Lifetime Prediction to Loosening Failure of Bolted Joints

Paper #:
  • 2017-01-0479

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-0479
Citation:
Hareyama, S., Manabe, K., Nakashima, M., Shimodaira, T. et al., "Residual Clamping Force Estimation and Lifetime Prediction to Loosening Failure of Bolted Joints," SAE Technical Paper 2017-01-0479, 2017, doi:10.4271/2017-01-0479.
Pages:
12
Abstract:
This investigation describes a method for estimating the absolute lock effect in bolted joint. Observation results of loosening phenomenon in industrial vehicle are analyzed for the linear relation by the proposed regression formula. Based on the relation, in early stages of the development test, the rate of clamping force decrease can be estimated accurately after prolonged operation by measuring the clamping force behavior. The tendency to decrease is observed about the depression type and working load type loosening. For evaluation design bases, the residual clamping force estimation chart is established. The L-N (Loosening Lifetime - Number of Cycles to Loosening N) diagram is proposed for the loosening lifetime prediction for working load type loosening also. Using the loosening damage (cumulative decrease of clamping force) and L-N diagram, the lifetime to loosening failure can be predicted accurately for the locking device and method as an absolute evaluation.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2013-09-24
Article
2016-11-11
Training / Education
2017-07-31