# acoustic emission

> phenomenon of radiation of acoustic waves in solids that occurs when a material undergoes irreversible changes in its internal structure, e.g. crack formation or plastic deformation due to aging, temperature gradients or external mechanical forces

**Wikidata**: [Q746673](https://www.wikidata.org/wiki/Q746673)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Acoustic_emission)  
**Source**: https://4ort.xyz/entity/acoustic-emission


## References

1. Freebase Data Dumps. 2013
2. National Library of Israel Names and Subjects Authority File
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)