What does spall mean?
The term spall refers to a small fragment or piece of material, often broken off from a larger body due to stress, impact, or other mechanical forces. In geology, spalls are commonly collected for analysis to understand rock formations and composition. As a verb, to spall means to break into small fragments, a process observed in materials science, particularly in the study of metal fatigue or during high-velocity impacts. Understanding spall and spalling processes is crucial in fields like engineering and geology for assessing material durability and natural processes.
A small piece or fragment of rock, metal, or other material broken off from a larger body.
"The geologist studied the spall of rock for mineral composition."
Often used in geology and materials science.
To break or fragment into small pieces, often due to stress or impact.
"The surface of the metal began to spall under repeated stress."
Commonly used in technical contexts such as engineering and materials science.
Used for countable instances of fragments.
"The site yielded several spalls of pottery for analysis."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of spall
The word spall has its origins in the late 19th century, derived from the German word 'spalten,' meaning 'to split' or 'to cleave.' This etymology is linked to the concept of materials breaking into fragments under stress.
How spall is actually used
In geology and materials science, spall often refers to fragments broken off by stress or impact. The verb form is more commonly used in technical contexts.