Eliminate the Cause of Threaded Fastener Failure | Design World Online

Article by · 2012/08/23 ·

By Doug Lescarbeau, Loctite Brand Anaerobic Technology Director, Henkel Corporation
With more than 300 billion fasteners used in the U.S. every year, it is critical that they never fail in service. The latest threadlocking adhesives defy the root causes of fastener failure and are designed to ensure that threaded fasteners remain secure and sealed for their entire service life.
True or False: A properly torqued bolt will not loosen.
This statement may be true if a fastener is not subject to vibration or thermal cycling. But seasoned engineers know that any assembly can fail — sometimes catastrophically — if a fastener loosens
Root cause failure analysis is often used on critical pieces of equipment to identify the mode of failure. For example, the root cause of the crash of a $73 million drone aircraft turned out to be a failed fastener. However, root cause failure analysis often does (…)

via Eliminate the Cause of Threaded Fastener Failure.