Question
Download Solution PDFWhich of the following options is defined as the permanent deformation of a material that occurs at high temperatures under constant loading over a long period of time?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Creep is the plastic permanent deformation of a structure under constant load for a very long period of time.
It can occur as a result of long-term exposure to high levels of stress that are still below the yield strength of the material. Creep is more severe in materials that are subjected to heat for long periods and generally increases as they near their melting point.
It occurs due to dead load only.
Factors affecting creep
1. Type of loading
2. Magnitude of load
3. Time
4. Temperature
If temperature is more, creep is more and if the temperature reaches to half of melting point temperature the creep is intolerable. Such a temperature is defined as homologous temperature.
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