Welding Update for infrastructure: No nonsense with NDT

摘要

Infrastructure is defined as the basic physical systems that serve a community's population, such as roads, bridges, utilities, water, and sewage. These systems are essential for enabling productivity in the economy, so it is crucial to ensure they are fit for use. Nondestructive testing (NDT) techniques determine whether a component has reached its useful service life and needs repair or replacement. In-service load conditions produce incremental movement in materials and structural members. Whenever a force is applied to a member, it becomes stressed. The stresses cause strains, or movements, which are explained by the material properties. In-service conditions cause stress, strain, distortion, fatigue, and corrosion, which can manifest as discontinuities or defects.