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What is residual strain?
Residual Strain is the same thing as permanent strain, as in permanent strain in a beam. If you refer to a stress vs strain plot, you'll see that this relationship in metals is linear up until the yield point where the metal plastically deforms. After stress slightly decreases due to this yielding, It will continue to increase, along with strain but on a more curve-shaped line. When stress is removed from the metal, it will slowly decrease back down to 0, but there will be an offset in the strain. The distance from where strain equals zero to this new point along the axis is the the residual strain left in the metal due to plastic deformation.
What is the definition of stress and strain as applied to a wire?
Type your answer stress; the force applied perunit surface area of the body that produce or tends to produce deformation in a body is called stress if a force F to a area A of a body then stress=force/area or o=f/a where o (stigma) denotes stress.obviously, the SI unit of stree is newton pper square meter(Nm-2). strain; the fractonal deformation resulting from astree is called strain
Definition of young modulus?
The young modulus young modulus(E) = stress/strain stress = force/area strain = extension(total length)/original length It is this property that determines how much a bar will sag under its own weight or under a loading when used as a beam within its limit of proportionality
How did the first Doctor Regenerate?
He died of old age, pretty much. He was an elderly man to begin with, and the stress and strain of defeating the Cybermen in 'The Tenth Planet' took its toll. He collapsed in the TARDIS and in a scene that no video footage remains for, he regenerates into the Second Doctor.
What is an disadvantage of complaing?
One disadvantage of complaining is that it can foster a negative mindset, leading to increased stress and dissatisfaction. Regularly expressing grievances may also strain relationships, as others might perceive the complainer as pessimistic or burdensome. Additionally, excessive complaining can prevent individuals from focusing on solutions or taking proactive steps to improve their circumstances.
Could you show the derivation of elastic strain energy per unit volume?
The elastic strain energy per unit volume, also known as the strain energy density, can be derived by integrating the stress-strain curve over the strain range. The area under the stress-strain curve represents the work done on the material, which is equivalent to the strain energy stored. By dividing this strain energy by the volume of the material, the strain energy density per unit volume can be obtained.
How to calculate strain energy in a material?
To calculate strain energy in a material, you can use the formula: Strain Energy 0.5 x Stress x Strain. Stress is the force applied to the material, and strain is the resulting deformation. Multiply stress and strain, then divide by 2 to find the strain energy.
Details about stress strain curve?
stress strain curve details
What is strain energy due to torsion?
Strain energy due to torsion is the energy stored in a material when it is twisted under a torque load. It is calculated as the integral of shear stress and strain over the volume of the material. This energy represents the ability of the material to deform plastically under torsional loading.
Can stress exists without strain and vice versa. eg a heated bar held rigidly at both ends has no strain but there is stress?
Wherever there is stress there is strain. In the example you noted, if heated bar expands freely without one end constained it changes its strain without stress; that strain is called eigenstrain. If the same bar is held rigidly then the eigenstrain resisted and you get stress and strain. So stress cannot exist without strain; but strain can exist without stress if it is eigenstrain.
How to calculate strain from stress?
To calculate strain from stress, you can use the formula: Strain Stress / Young's Modulus. Stress is the force applied to an object, while Young's Modulus is a measure of the stiffness of the material. By dividing the stress by the Young's Modulus, you can determine the strain, which is the amount of deformation the material undergoes in response to the stress.
How to find strain from stress in a material?
To find strain from stress in a material, you can use the formula: Strain Stress / Young's Modulus. Young's Modulus is a measure of the stiffness of a material. By dividing the stress applied to the material by its Young's Modulus, you can calculate the resulting strain.
What is strain and stress?
stress is load per unit area; when an object is loaded it is under stress and strain and it stretches (strains) until it breaks at its ultimate strength. Stress i srelated to strain in the elastic region by Hooke's law: stress = elastic modulus times strain where modulus is a property of the material and strain is deflection over length
Where is the energy of an earthquake stored before the earthquake?
The energy of an earthquake is stored as elastic strain energy in the Earth's crust along the fault line prior to the earthquake. This energy is released when the stress on the fault exceeds the strength of the rocks, causing them to break and the energy to be radiated as seismic waves.
Is the ratio of stress-strain in the region below the proportional limit on the stress-strain curve?
stress is directly proportional to strain up to the proportional limit. Their ratio is young's modulus.
How do impact energy from the charpy impact test correlates with stress strain curve obtained from the tensile test?
jubo
How do impact energy from the charpy impact test correlates with stress-strain curve obtained from the tensile test?
jubo
