- #1
Tehniyat
- 2
- 0
For brittle substances can we say that elastic limit is equal to fracture stress ?
Physics of Solids: Elastic Limit & Fracture Stress
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SUMMARY
The discussion clarifies the relationship between elastic limit and fracture stress in brittle materials. It establishes that while these two values are closer together in brittle substances compared to less brittle ones, they are not identical. The concept of Ultimate Tensile Strength (UTS) is also addressed, confirming that brittle materials do possess a UTS, but it is crucial to recognize the yield point that exists after the elastic limit, albeit minimal in magnitude. Thus, equating elastic limit directly with fracture stress is inaccurate due to the presence of this yield point.
PREREQUISITES- Understanding of material properties, specifically in the context of brittle materials.
- Familiarity with concepts of elastic limit and fracture stress.
- Knowledge of Ultimate Tensile Strength (UTS) and yield points.
- Basic principles of solid mechanics and material science.
- Research the differences between elastic limit and fracture stress in various materials.
- Study the yield point and its significance in the context of brittle materials.
- Explore the concept of Ultimate Tensile Strength (UTS) in detail.
- Examine case studies of brittle materials and their mechanical properties.
Material scientists, mechanical engineers, and students studying solid mechanics who seek to deepen their understanding of the mechanical properties of brittle materials.
- #2
BvU
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Hello Tehniyat,
Safer to say that they are closer together than with a less brittle substance.
Safer to say that they are closer together than with a less brittle substance.
- #3
Tehniyat
- 2
- 0
BvU said:Hello Tehniyat,
Safer to say that they are closer together than with a less brittle substance
Do brittle substances have UTS ?BvU said:Hello Tehniyat,
Safer to say that they are closer together than with a less brittle substance.
- #4
BvU
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Sure, why not ?
- #5
Ali Durrani
- 55
- 5
yes you can say but to be more precise its not good to say that they both are same, because even brittle materials have a yield point which lies after elastic limit but that plastic deformation in the yielding range is too small, usually in microns, so we ignore it, that is why its not good to say that elastic limit and UTS are same because you can't ignore the yielding which lies in between them.
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