Creep, relaxation and shrinkage
Studied by 0 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/7
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
8 Terms
Why study time-dependent deformation of materials?
materials may continue to deform through the time under constant load
materials may deform through the time due to changes in their moisture content
What is Creep?
time-dependent deformation of a material under a constant load or constant stress, typically at medium or high temperatures
What does the typical creep curve show?
The typical creep curve for metals (under constant stress) shows how strain changes over time at medium or high temperatures
What is Creep Recovery?
the partial or complete recovery of strain that occurs in a material after the removal of a constant load or stress applied during creep
What is Relaxation?
opposite of creep
time dependent loss of stress due to constant strain
What is Shrinkage?
Deformation due to loss of moisture (drying shrinkage)
Time-dependent loss of stress due to constant strain in
viscoelastic materials is called …
stress relaxation
Is drying shrinkage of concrete reversible or irreversible?
Briefly justify your answer.
Irreversible: drying shrinkage occurs when moisture evaporates from concrete, causing permanent volume reduction. Once water is lost, the concrete cannot fully regain its original dimensions, even if moisture is reabsorbed