Fatigue due to repetitive strain is the leading cause of failure in metal components and structures, but new research shows how crystalline structures called nanotwins can slow the accumulation of ...

A typical microstructure (grain structure at the micron scale) of metallic material. (Courtesy: J Stinville) The tiniest defects in a metal can cause it to fail, but predicting when this so-called ...

Fig. 1. Standard method used for displaying fatigue test results. 1a (right) shows standard fatigue testing terminology, and 1b. (left) depicts an S-N diagram. Photo Credit: Dan Adams Fatigue testing ...

Studying fatigue cracks at the nanoscale: Sandia National Laboratories researcher Ryan Schoell uses a specialized transmission electron microscope technique developed by Khalid Hattar, Dan Bufford and ...

Dr. Gary Fry is the Vice President of Fry Technical Services, Inc. He has 30 years of experience in research and consulting on the fatigue and fracture behavior of structural metals and weldments. His ...

Things don’t fall from the sky without a damn good reason. US lawyers Baum Hedlund, who specialize in litigation concerning transport accidents, lists human errors as the main reasons (53 percent) for ...

The contents have been developed as course notes for training courses presented to engineers who need to apply fatigue knowledge in engineering design, fatigue testing and failure investigation.

Donated by: Minnesota Department of Transportation (MnDOT) Original Location: Minnesota State Highway 43, Mississippi River Crossing Year Built: 1941 Structure Type: Main – Steel riveted cantilever ...