API 580 Risk Based Inspection Practice Test

What does a brittle fracture indicate in terms of material condition?

1. High ductility

2. Low flexibility

3. Weak structural integrity

4. Normal wear and tear

The correct answer is: Weak structural integrity

A brittle fracture indicates that the material has failed suddenly and without significant deformation, showcasing a lack of toughness. This type of fracture typically occurs in materials that are unable to absorb energy prior to fracture, highlighting a compromised structural integrity. When a material exhibits brittle behavior, it is often an indicator of problems such as inadequate material properties, environmental conditions leading to embrittlement, or other issues that degrade its ability to withstand stress. The presence of a brittle fracture signals that the material cannot support loads effectively, thus leading to a rapid and catastrophic failure rather than a gradual one. This is a critical concern in engineering and maintenance, as it can result in significant safety hazards. Understanding this characteristic is vital for assessing the reliability and fitness for service of industrial components.