Bolts are certainly one of the smallest elements that make up structures. However, they are also some of the most critical elements to the safety, reliability, and performance of structures. These elements must be chosen correctly and fastened correctly in order to maintain the safety and efficiency of a structure and its operations. At Peak innovations Engineering, we are your source for bolt testing and analysis to ensure your bolt fastener connections are chosen and implemented for optimum long-term safety, reliability, and performance.
Bolt failure can definitely occur when manufacturer’s guidelines and proper bolting practices are not followed. This can lead to leaks, fires, and tragic accidents. Because the potential consequences of the use of the wrong bolts or wrong bolting techniques is so serious, it is essential to use certified tools and follow correct training at all times.
Bolt Fatigue Failure
Improper torqueing of bolts combined with the following factors can lead to failure caused by fatigue:
- Vibration leading to bolt loosening
- Bolt material defects
- Stretching or overloading of the bolt
- Improperly calibrated tools resulting in excessive or too little preload torque
- Bolt corrosion or galling
- Exposure to extreme temperatures
Ways to Avoid Bolt Failure
Minimize the chance of bolt failure as a result of fatigue by examining each bolt and applying these steps as needed.
- Have a proper understanding of the bolt and connection design.
- Avoid overstressing the bolts.
- Choose a bolt with the proper material and strength.
- Check the torque value to make sure it is correct for the bolt diameter and alloy.
- Avoid high speed bolt installation.
- Avoid bolt installation on rough surfaces.
- Avoid bolt misalignment.
- Use the proper torque wrench.
- Prevent corrosion or dirt from filling up the fastener hole to avoid incorrect torque readings.
- Use lubricants or adhesives to prevent bolt loosening.
- In assembled joints subject to vibration, use finer threads.
- Keep hole clearances to a minimum in the completed fastener joint.
- Provide more support to prevent vibrations and operating stresses.
Contact Us for Bolt Testing and Analysis
To learn how our team can help you choose and install bolts for your applications in a manner that prevents failure, give us a call today at 815.420.3802 or drop us a message through our contact form.
