Читать книгу Root Cause Failure Analysis - Trinath Sahoo - Страница 129

The deficiency in design of a component can be in various forms such as presence of stress raisers owing to sharp change in cross section, changing the design without proper consideration of its influence on stress distribution especially in high stress areas of the component. Many a time duplicating a successful design for more severe loading conditions or the design is developed owing to lack of knowledge to use proper criteria for designing the engineering components may lead to failure. Designers frequently also come across the situation when accurate calculations and clear analysis of stress (under prevailing technological understanding and capabilities) is not practicable due to complexity in geometry of the component.