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The proportional limit is the maximum stress at which stress and strain remain proportional within a material. Beyond this point, the material begins to deform plastically and no longer exhibits linear elastic behavior. It is an important property in materials testing and design.
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What is Proportional limit of a spring?
The proportional limit of a spring is the point at which the relationship between the force applied to it and the extension of the spring becomes non-linear. Beyond the proportional limit, the spring will no longer obey Hooke's Law, which states that the extension of a spring is directly proportional to the force applied to it.
What is Difference between elastic limit and proportional limit?
Proportionality limit is the point upto which the stress remains directly proportional to strain whereas elastic limit is the point upto which the material remains elastic ie. if the stress is removed within elastic limit, then the material will regain its original shape and size.
What is the difference between proportional limit and elastic limit?
Proportionality limit is the point upto which the stress remains directly proportional to strain whereas elastic limit is the point upto which the material remains elastic ie. if the stress is removed within elastic limit, then the material will regain its original shape and size.
What is the difference the proportional limit and the yield point of a spring that has been over stretched?
The proportional limit is the maximum stress at which stress and strain are directly proportional. The yield point is the stress at which the material begins to deform plastically. If a spring has been overstretched beyond its yield point, it won't return to its original shape when the load is removed.
What is difference between the proportional limit and the yield point of a string that has been over stretched?
proportional limit is value of stress that beyond which it is nonlinear; prior to that the stress strain diagram is a straight line. At yield, the material strain will not return to zero after unloading and have a permanent set
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.
What is Proportional limit of a spring?
The proportional limit of a spring is the point at which the relationship between the force applied to it and the extension of the spring becomes non-linear. Beyond the proportional limit, the spring will no longer obey Hooke's Law, which states that the extension of a spring is directly proportional to the force applied to it.
What is Difference between elastic limit and proportional limit?
Proportionality limit is the point upto which the stress remains directly proportional to strain whereas elastic limit is the point upto which the material remains elastic ie. if the stress is removed within elastic limit, then the material will regain its original shape and size.
What is the difference between proportional limit and elastic limit?
Proportionality limit is the point upto which the stress remains directly proportional to strain whereas elastic limit is the point upto which the material remains elastic ie. if the stress is removed within elastic limit, then the material will regain its original shape and size.
What is the difference the proportional limit and the yield point of a spring that has been over stretched?
The proportional limit is the maximum stress at which stress and strain are directly proportional. The yield point is the stress at which the material begins to deform plastically. If a spring has been overstretched beyond its yield point, it won't return to its original shape when the load is removed.
What is difference between limit of proportionality and tensile strength?
The proportional limit is the stress value at which the stress is no longer linear with strain. After that, the material will begin to yield and become non-linear, or plastic, and then it will fail at a higher value called the tensile strength. For most metals, the proportional limit is well below the tensile strength; for example annealed stainless steel has a proportional limit near 30 ksi and tensile strength of 80 ksi; aluminum has a proportional limit of 35 ksi and tensile strength of 42 ksi.
When a material is loaded within elastic limit the what is proportional to the what produced by the stress?
The displacement is proportional to the strain. This does not factor for creep and time.
Which one of the following properties is more sensitive to increase in strain rate?
elastic limit
What is difference between the proportional limit and the yield point of a string that has been over stretched?
proportional limit is value of stress that beyond which it is nonlinear; prior to that the stress strain diagram is a straight line. At yield, the material strain will not return to zero after unloading and have a permanent set
What does Hooke's law depend on?
Within the elastic limit of the material, a springs deformation is proportional to its loading.
How to find the proportional limit on a stress-strain graph?
To find the proportional limit on a stress-strain graph, locate the point where the graph transitions from a straight line to a curve. This point represents the maximum stress at which the material behaves elastically, meaning it returns to its original shape after the stress is removed.
What is the difference between proportional limit and yield strength?
Proportional limit is the maximum stress for which strain remains proportional to stress. As it is usually not obvious, industry accept to use offset method 0.0001 in/in. Yield stress is stress level which detrimental damage is assumed to occur (plasticity). This point is also not exhibited well in certain metal, so industry accept to use offset method 0.002 in/in.
