Abstract
For the influence of the nonuniform distribution of axial stress on the existing ultrasonic measurement model and the difficulty to determinate the key parameters in the model, the concept and determination method of bolt shape factor are proposed, and an ultrasonic measurement model for bolt fastening force based on shape factor is established. On the basis of the proposed model, the influence of temperature on detection coefficient and acoustic time difference is analyzed. The material factor of 45# steel, and the shape factors of M20 and M16 standard full thread bolts are obtained through finite element simulation and experimental calibration. The fastening forces of bolt samples were measured with the calibration parameters. The measured results are in good agreement with the preset fastening force, which verifies the validity and reliability of the method.
| Translated title of the contribution | Study of Ultrasonic Measurement Method for Bolt Fastening Force Based on Shape Factor |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 880-888 |
| Number of pages | 9 |
| Journal | Binggong Xuebao/Acta Armamentarii |
| Volume | 40 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Apr 2019 |