Plasticity in solids is determined not by defects, but by the distribution of valence electrons. An isotropic distribution causes lattice instability, making solids more plastic but less strong. This work introduces a novel model of a plastic crystal based on this concept.
Unchecked structural damages threaten public safety. This guide to non-destructive testing (NDT) methods helps inspectors select the most applicable and cost-effective technique for detecting defects in structures using steel, concrete, fibre-reinforced polymers, and timber.