Wiktionary
n. 1 (context physics English) Any fluid flow in which movement is proportional to the applied force (above the yield value). 2 (context geology English) Any deformation caused by a sustained force.
Usage examples of "plastic flow".
He had not known from one minute to the next what new form the plastic flow of their flesh would present.
Then there was a second eruption with a heavier, more plastic flow, possibly a small amount that shot down the tube and hit a rainstorm, or was blocked in some other way, and cooled immediately.
Four hundred and fifty miles north of Reindeer Lake, near the heart of the ice sheet, soundings reported an average of more than eighty feet of ice, with plastic flow on slopes.
The result was catastrophic: the underlying adobe surface began to dissolve in heavy rains and to exhibit plastic flow which threatened to destroy the whole edifice.