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Elastic deformation in high temperature materials refers to the ability of the material to deform reversibly under stress without undergoing permanent plastic deformation. At high temperatures, materials may exhibit a higher tendency for elastic deformation due to decreased yield strength and increased ductility. This property is important for materials exposed to thermal cycling or fluctuating loads at elevated temperatures to minimize the risk of fatigue or creep failure.
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What is theMeaning of elastic strength?
Elastic strength refers to the ability of a material or structure to deform under stress and then return to its original shape once the stress is removed. It is a measure of how well a material can withstand stretching or compression without permanent deformation. Materials with high elastic strength can absorb energy and maintain their integrity under loading conditions.
How does temperature and pressure affect brittle deformation and ductile deformation?
Temperature and pressure can affect brittle deformation by promoting the formation of fractures or faults in rocks under high pressure or temperature conditions. Ductile deformation is more likely to occur at high temperatures and pressures, leading to the rock bending and flowing rather than fracturing. Additionally, increasing temperature can enhance the ductility of rocks, making them more likely to undergo plastic deformation.
Definition of elastic strength in physics?
In physics, elasticity is a physical property of materials which return to their original shape after they are deformed.
What is the viscosity of rubber?
The viscosity of rubber varies depending on its composition and temperature. Generally, rubber has a high viscosity, meaning it resists flow and deformation. Rubber can exhibit both elastic and viscous properties, making it a viscoelastic material with complex rheological behavior.
What is the elastic limits of gold?
Gold has a high elastic limit, meaning it can be deformed significantly before permanent deformation occurs. Under normal conditions, gold can be stretched to about 20-30% of its original length before it reaches its elastic limit and starts to deform permanently.
What is theMeaning of elastic strength?
Elastic strength refers to the ability of a material or structure to deform under stress and then return to its original shape once the stress is removed. It is a measure of how well a material can withstand stretching or compression without permanent deformation. Materials with high elastic strength can absorb energy and maintain their integrity under loading conditions.
How does temperature and pressure affect brittle deformation and ductile deformation?
Temperature and pressure can affect brittle deformation by promoting the formation of fractures or faults in rocks under high pressure or temperature conditions. Ductile deformation is more likely to occur at high temperatures and pressures, leading to the rock bending and flowing rather than fracturing. Additionally, increasing temperature can enhance the ductility of rocks, making them more likely to undergo plastic deformation.
Brittle deformation would be favored over plastic deformation in what?
Brittle deformation is favored over plastic deformation in situations where the material is under low temperature, high strain rate, low confining pressure, or lacks ductility. Additionally, brittle deformation occurs in materials with strong atomic bonds that tend to fracture rather than deform permanently.
What are the types of high temperature degradation of materials?
The types of high temperature degradation of materials include oxidation (reaction with oxygen), thermal decomposition (breakdown due to high temperatures), and creep (time-dependent deformation under constant load at high temperatures). These processes can lead to changes in material properties and ultimately failure.
What is it called when rocks bend instead of breaking?
When rocks bend instead of breaking, it is called ductile deformation. This typically occurs under high pressure and temperature conditions deep within the Earth's crust where rocks are able to deform and flow rather than fracture.
Definition of elastic strength in physics?
In physics, elasticity is a physical property of materials which return to their original shape after they are deformed.
What is the viscosity of rubber?
The viscosity of rubber varies depending on its composition and temperature. Generally, rubber has a high viscosity, meaning it resists flow and deformation. Rubber can exhibit both elastic and viscous properties, making it a viscoelastic material with complex rheological behavior.
What is the elastic limits of gold?
Gold has a high elastic limit, meaning it can be deformed significantly before permanent deformation occurs. Under normal conditions, gold can be stretched to about 20-30% of its original length before it reaches its elastic limit and starts to deform permanently.
What is an elastic perfectly plastic material?
HI!!!!check out my answer....The difference between the two is....The plastic deformation will occur where pressures are relatively high and the strain rate relatively low. During plastic deformation, the materials flow and changes in shape will be permanent. While,The elastic deformation will change shape in response to a stress, then snap back into it's original shape if the stress is removed. (in other words, the strain is recoverable)IN short word...THE PLASTIC DEFORMATION ARE PERMANENT AND THE ELASTIC DEFORMATION WILL GO BACK TO ITS ORIGINAL SHAPE.ROCEL TADINA1- newton
What makes some things elastic?
Elasticity in materials is determined by their ability to return to their original shape after being stretched or deformed. Materials with a high elasticity have strong molecular structures that allow them to withstand deformation and then spring back to their original shape when the force is removed. Factors such as the type of bonds between molecules and the arrangement of atoms within the material contribute to its elasticity.
How does creep differ from high temperature fatigue?
Creep is a time-dependent deformation that occurs in materials under constant stress at elevated temperatures, typically exceeding 0.4 times the melting temperature of the material. In contrast, high-temperature fatigue involves the cyclic loading of materials at elevated temperatures, leading to the initiation and propagation of cracks due to repeated stress fluctuations. While creep is primarily a gradual process that occurs under steady load, high-temperature fatigue is characterized by its cyclical nature and the influence of varying stress levels on material failure.
What is internal plastic flow?
Internal plastic flow refers to the deformation of a material without fractures or cracks occurring. It typically happens in ductile materials under high stress and temperature conditions, causing the material to permanently change shape without breaking. This process is commonly observed in metal forming and forging operations.
