{"id":30518,"date":"2021-07-08T07:24:17","date_gmt":"2021-07-08T07:24:17","guid":{"rendered":"http:\/\/sitepourvtc.com\/?page_id=30518"},"modified":"2023-09-19T06:23:49","modified_gmt":"2023-09-19T06:23:49","slug":"failure-modes-of-materials","status":"publish","type":"page","link":"https:\/\/sitepourvtc.com\/nuclear-engineering\/metals-what-are-metals\/failure-modes-of-materials\/","title":{"rendered":"Failure Modes of Materials"},"content":{"rendered":"
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\"Liberty
Brittle fracture of the U.S. Liberty Ship Esso Manhattan<\/figcaption><\/figure>\n

In materials science, material failure<\/strong> is the loss of the load-carrying capacity of a material unit. The design of a component or structure often calls upon the engineer to minimize the possibility of failure. Whether we like it or not, various components in service suffer failure (either breakage or change of shape) and cannot perform their designated function. The usual causes of failure are improper materials selection and processing and inadequate design of the component or its misuse. In the best case, the failed component requires replacement, and if we do not want a repetition of the failure, we must understand what caused it. Thus, it is important to understand the mechanics of the various mechanical failure modes: fracture, fatigue, and creep. In addition, be familiar with appropriate design principles that may be employed to prevent service failures. This is the main task in a very important scientific field known as failure analysis.<\/p>\n

Failure analysis (FA)<\/strong> is a multidisciplinary scientific field connecting areas of engineering from diverse backgrounds and bodies of knowledge. From applied mechanics to electrochemistry and corrosion and from numerical modeling to understanding surface science and tribology. The complexity of the nature of the subject requires embracing various engineering disciplines to succeed in high process performance and effective root-cause analysis, which is the core and central objective of the failure investigation process. The following section is addressed simple fracture (both ductile and brittle modes), fundamentals of fracture mechanics, fracture toughness testing, ductile-to-brittle transition, pressurized thermal shocks, fatigue, and creep.<\/p>\n