دانلود کتاب آزمایش و ارزیابی غیرمخرب سازه های کامپوزیتی تقویت شده با الیاف

Advanced fiber-reinforced composites (FRCs) are constantly gaining popularity in various structural and engineering applications, thanks to their outstanding physical, electrical, and mechanical properties. However, these types of materials are also prone to developing defects and damage ranging from small cracks to big impacts both at the manufacturing and in-service stages of the composite. To this end, a relentless investigation into their structural integrity is crucial as it helps users to determine when to reject, repair, or replace a particular part or component that might be of potential risks to the safety and security of users and the operation of the host structural system as awhole. In this book, we present a series ofmajor nondestructive testing and evaluation (NDT and NDE) techniques for fiber-reinforced composite structures. As interesting as the title of the book might be, one may also want to know why we decided to include the words “testing and evaluation” in a single title instead of just keeping the generic term “testing” which is commonly used in many instances in connection with the word “nondestructive”. To explain where all this comes from, we need to take a deep dive into the original meaning of the individual words of the phrase “nondestructive testing and evaluation”. According to ASTM E1316-17A, the word nondestructive denotes a process of doing something that does not result in damage or harmful effect to the material or structure under test. Similarly, the most appropriate definition of the word “testing” relates to the determination of the presence of certain properties in a component under investigation and to present its inherent conditions or characteristics by direct or indirect means. The word “evaluate”, on the other hand, has a definition that seems to be broader in meaning as it involves a careful examination of the test results and decides of whether the indications or features noted during the examination can be the cause to accept or to reject the material or component consistent with the predefined acceptance criteria.