The morning of July 16, 2022, four first responders with the Bernalillo County Sheriff’s Office air support unit climbed ...

Cracks caused by the kind of strain described above are known as fatigue damage: repeated stress and motion that causes microscopic breaks, eventually causing machines or structures to break.

Fatigue failure is a failure mechanism which results from the formation and growth of cracks under repeated cyclic stress loading, leading to fracture. It can result in failure at stress levels ...

When cracks are discovered on bridges in service, fatigue is usually the cause. A working knowledge of fatigue susceptible details, AASHTO fatigue categorization, identification of NSTMs, development ...