The January issue of the Fastener + Fixing Magazine published an article from Bolt Science that was in last month’s newsletter. The article was on the importance of the friction value with shear loaded friction grip joints.
This article provides valuable insights into the mechanics of friction grip joints and the factors influencing their performance. One potential way to further enhance the reliability of these joints is through the use of Belleville spring washers. Their unique design ensures consistent clamping forces, compensates for thermal expansion, and improves load distribution, making them an excellent option for applications where joint stability is critical.
Very good article! Coatings (often needed for corrosion protection) at the joint interface also play an important role. Organic paint/layers will clearly reduce the static friction coefficient (up to 0,06) of the joint interface, resulting in extra clamping load to the secure the joint. Specific galavanic coating can offer much higher static friction conditions.
Also the importance of dowel pins
Very insightful!!!
Turbomachinery Vibration / Acoustics Consultant at Frank Kushner Consulting, LLC
1 个月My understanding is that friction increases when dissimilar materials are in contact. Correct?