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Which one is developed in body first stress or strain?
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Which one is developed in body first stress or strain?
Stress is caused due to strain and strain is caused due to applied force.hence we can say that applied force first then strain then stress comes. this is the reason that strain is always taken in x-axis as an independent quantity and stress in the y-axis dependent quantity.
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Which one is developed in body first stress or strain?
Stress (mechanical or thermal, internal resisting force per unit area) is developed either by external mechanical contact forces or by change in temperature of the body.
In real situation, when a body comes in contacts with its surrounding things like any support or contacting surface, the contact forces causes some deformation or distortion (may be negligible but not zero) which develops mechanical stress because the stress is always dependent on the strain.
Eg. Human body is always subjected to normal stress due to strain caused by the atmospheric pressure.
Bones of legs are subjected to normal stress due to compressive deformation caused by upward normal reaction force exerted by the ground.
Every object having some mass (i.e. experiencing gravitational pull) and lying on the plane develops stress due to deformation caused by external physical or mechanical contact forces.
Strain develops in a body only when there is any change in its dimension (i.e. length, width, diameter, surface area, volume) or geometrical shape (i.e. cuboidal, parallelepiped, conical, spherical, cylindrical etc.).
We know that each body has property to resist any change in its size or shape and regain its original state like dimension, shape etc. So if there is strain there may or may not be stress.
Therefore if there is any stress (mechanical or thermal) there is always strain in the body and vice-versa not true.
Thus stress is always dependent on strain because if a body is either perfectly rigid or completely constrained from all sides under the application of external loads or subjected to the change in temperature then the strain is actualy non zero so is the stress. Hence first strain is caused by external loads then stress is developed
In real situation, when a body comes in contacts with its surrounding things like any support or contacting surface, the contact forces causes some deformation or distortion (may be negligible but not zero) which develops mechanical stress because the stress is always dependent on the strain.
Eg. Human body is always subjected to normal stress due to strain caused by the atmospheric pressure.
Bones of legs are subjected to normal stress due to compressive deformation caused by upward normal reaction force exerted by the ground.
Every object having some mass (i.e. experiencing gravitational pull) and lying on the plane develops stress due to deformation caused by external physical or mechanical contact forces.
Strain develops in a body only when there is any change in its dimension (i.e. length, width, diameter, surface area, volume) or geometrical shape (i.e. cuboidal, parallelepiped, conical, spherical, cylindrical etc.).
We know that each body has property to resist any change in its size or shape and regain its original state like dimension, shape etc. So if there is strain there may or may not be stress.
Therefore if there is any stress (mechanical or thermal) there is always strain in the body and vice-versa not true.
Thus stress is always dependent on strain because if a body is either perfectly rigid or completely constrained from all sides under the application of external loads or subjected to the change in temperature then the strain is actualy non zero so is the stress. Hence first strain is caused by external loads then stress is developed
Community Answer
Which one is developed in body first stress or strain?
Introduction:
In the study of materials and mechanics, stress and strain are two important concepts that help us understand the behavior of objects under external forces. Both stress and strain are related to the deformation of a material, but they are different in nature. Stress refers to the internal resistance within a material to external forces, while strain measures the resulting deformation.
Explanation:
- Stress:
Stress is developed in a body first before strain. Stress can be defined as the force per unit area acting on a material. When an external force is applied to a body, it creates an internal resistance within the material, known as stress. Stress is a measure of the internal forces that develop within a material to counteract the external forces. It is represented as a ratio of force to area and has units of pressure.
- Strain:
Strain, on the other hand, is the resulting deformation that occurs in a material when stress is applied. It is a measure of the relative change in shape or size of a material due to the applied stress. Strain is dimensionless and is typically expressed as a percentage or decimal.
Stress-Strain Relationship:
- Elastic Region:
When a material is subjected to an external force, it initially undergoes elastic deformation. In this region, the material can return to its original shape once the force is removed, indicating that the stress and strain are directly proportional to each other. This relationship is described by Hooke's Law.
- Plastic Region:
If the applied force exceeds a certain threshold, the material enters the plastic region. In this region, the stress and strain are no longer proportional, and the material undergoes permanent deformation. The material may exhibit necking or undergo structural changes.
Conclusion:
In summary, stress is developed in a body first when an external force is applied. It represents the internal resistance within a material. Strain, on the other hand, is the resulting deformation that occurs due to the applied stress. The stress-strain relationship helps us understand the behavior of materials under different loading conditions and is crucial in the field of materials science and engineering.
In the study of materials and mechanics, stress and strain are two important concepts that help us understand the behavior of objects under external forces. Both stress and strain are related to the deformation of a material, but they are different in nature. Stress refers to the internal resistance within a material to external forces, while strain measures the resulting deformation.
Explanation:
- Stress:
Stress is developed in a body first before strain. Stress can be defined as the force per unit area acting on a material. When an external force is applied to a body, it creates an internal resistance within the material, known as stress. Stress is a measure of the internal forces that develop within a material to counteract the external forces. It is represented as a ratio of force to area and has units of pressure.
- Strain:
Strain, on the other hand, is the resulting deformation that occurs in a material when stress is applied. It is a measure of the relative change in shape or size of a material due to the applied stress. Strain is dimensionless and is typically expressed as a percentage or decimal.
Stress-Strain Relationship:
- Elastic Region:
When a material is subjected to an external force, it initially undergoes elastic deformation. In this region, the material can return to its original shape once the force is removed, indicating that the stress and strain are directly proportional to each other. This relationship is described by Hooke's Law.
- Plastic Region:
If the applied force exceeds a certain threshold, the material enters the plastic region. In this region, the stress and strain are no longer proportional, and the material undergoes permanent deformation. The material may exhibit necking or undergo structural changes.
Conclusion:
In summary, stress is developed in a body first when an external force is applied. It represents the internal resistance within a material. Strain, on the other hand, is the resulting deformation that occurs due to the applied stress. The stress-strain relationship helps us understand the behavior of materials under different loading conditions and is crucial in the field of materials science and engineering.
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Which one is developed in body first stress or strain?
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Which one is developed in body first stress or strain? for SSC JE 2024 is part of SSC JE preparation. The Question and answers have been prepared according to the SSC JE exam syllabus. Information about Which one is developed in body first stress or strain? covers all topics & solutions for SSC JE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one is developed in body first stress or strain?.
Which one is developed in body first stress or strain? for SSC JE 2024 is part of SSC JE preparation. The Question and answers have been prepared according to the SSC JE exam syllabus. Information about Which one is developed in body first stress or strain? covers all topics & solutions for SSC JE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one is developed in body first stress or strain?.
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