Acoustic emission is a term that is commonly used in the field of engineering, particularly in the area of non-destructive testing. It refers to the phenomenon of energy being released in the form of sound waves when a material undergoes stress or deformation. This article will provide a detailed definition and meaning of acoustic emission, as well as its origins, associations, synonyms, and antonyms.
Definitions
Acoustic emission can be defined as the release of energy in the form of sound waves that occurs when a material undergoes stress or deformation. This phenomenon is caused by the movement of dislocations, cracks, or other defects within the material. Acoustic emission is often used as a non-destructive testing technique to detect flaws or defects in materials, such as those found in pipelines, pressure vessels, and other structures.
Origin
The study of acoustic emission can be traced back to the early 1900s when scientists discovered that materials emit sound waves when they are subjected to stress. However, it was not until the 1960s that acoustic emission began to be used as a practical tool for non-destructive testing. Since then, it has become a valuable technique in the field of engineering and has been used to detect flaws in a wide range of materials.
Meaning in different dictionaries
Acoustic emission is a term that is commonly used in the field of engineering and is not typically found in general dictionaries. However, some technical dictionaries provide definitions of the term. For example, the McGraw-Hill Dictionary of Scientific and Technical Terms defines acoustic emission as “the generation of sound waves by the sudden release of energy within a material due to changes in its internal structure.”
Associations
Acoustic emission is often associated with non-destructive testing techniques, such as ultrasonic testing and radiography. These techniques are used to detect flaws or defects in materials without causing damage to the material itself. Acoustic emission is also associated with the study of material science and the behavior of materials under stress.
Synonyms
There are several synonyms for acoustic emission, including acoustic signals, acoustic waves, and acoustic noise. These terms all refer to the release of energy in the form of sound waves that occurs when a material undergoes stress or deformation.
Antonyms
There are no direct antonyms for acoustic emission, as it is a specific phenomenon that occurs when a material undergoes stress or deformation. However, some terms that are related to acoustic emission, such as structural integrity and material strength, could be considered antonyms in the sense that they refer to the ability of a material to withstand stress without undergoing deformation or failure.
The same root words
Acoustic emission does not have any direct root words, but it is related to the field of acoustics, which is the study of sound waves and their properties. Acoustics is derived from the Greek word akoustikos, which means “pertaining to hearing.”
Example Sentences
- The acoustic emission technique was used to detect cracks in the pipeline.
- The material emitted a high-pitched sound as it underwent stress, indicating acoustic emission.
- Acoustic emission is a valuable tool for non-destructive testing in the field of engineering.