##  [Through-Thickness Crack](/through-thickness-crack) 

  ##  [Through-Thickness Crack](https://engineering.quantumdictionary.io/through-thickness-crack-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A crack whose extent penetrates the full nominal thickness of a structural element or containment boundary such that it produces a continuous breach (direct communication) between the two faces of the component; unlike surface or partial‑depth cracks, a through‑thickness crack removes the material ligament across the thickness.