The most consequential mechanical failures in transport aviation are often the ones which start as hairline cracks hidden ...

Static flexural testing has long been conducted because it is a simple method for evaluating all types of materials. Static flexural testing of composite materials, in particular, was discussed in my ...

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 ...

A few guidelines show how to correctly use FEA stresses to find reasonable margins of safety. Although finite-element analysis has become an indispensable part of engineering, a few users knock it ...