Durchriss

Durchriss is a German noun formed from durch (through) and Riss (tear or crack). It denotes a rupture that penetrates the full thickness of a material or barrier, resulting in a through-going breach. In technical usage, ein Durchriss implies that a crack or tear has propagated until it completely opens the cross-section, rather than remaining a localized defect. The term appears in engineering, materials science, geotechnics, and related fields when describing failure modes of components, structures, or barriers under stress, pressure, or loading conditions.

In practice, a Durchriss describes a through-going failure, as opposed to a mere Riss, which may be a partial crack, or a Durchbruch, which emphasizes the breach of an enclosing barrier allowing passage of fluids or other substances. The occurrence can be due to overload, fatigue, impact, or environmental and operational factors that drive crack propagation. The exact interpretation and preferred terminology can vary by field and country; some contexts may employ closely related terms such as Durchbruch or simply Riss with qualifier words to indicate through-going damage. Overall, the concept highlights the transition from a localized defect to a complete opening across the material.