Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 1)
1.
Strain energy is the
Discussion:
83 comments Page 1 of 9.
Mukhesh said:
10 years ago
Strain Energy of the member is defined as the internal work done in deforming the body by the action of externally applied forces. This energy in elastic bodies is known as elastic strain energy.
Strain energy stored up to proportionality limit is called Proof resilience, Strain energy stored up to elastic limit is called resilience and Strain energy stored up to fracture point is called toughness of the material.
Strain energy stored up to proportionality limit is called Proof resilience, Strain energy stored up to elastic limit is called resilience and Strain energy stored up to fracture point is called toughness of the material.
Srinivasulu.v said:
1 decade ago
When a body is strained (loaded) the energy stored in the body with in the elastic limit is called strain energy.
But when the energy stored in the body up to the breaking of the specimen is called toughness. (i.e under the stress-strain curve).
HOOKS LAW said that stress is directly proportional to strain with in the elastic limit. So we have to consider the strain energy up to the elastic limit.
But when the energy stored in the body up to the breaking of the specimen is called toughness. (i.e under the stress-strain curve).
HOOKS LAW said that stress is directly proportional to strain with in the elastic limit. So we have to consider the strain energy up to the elastic limit.
Shivam Kumar said:
8 years ago
No,
Strain energy-it is the ability of a material to absorb energy when it is strained.
Resilience-ability of a material to absorb energy in the elastic region when it is strained.
Proof resilience-maximum energy absorbing capacity of a material in the elastic region is called proof resilience
Modulus of resilence-proof resilience per unit volume is called modules of resilience.
Strain energy-it is the ability of a material to absorb energy when it is strained.
Resilience-ability of a material to absorb energy in the elastic region when it is strained.
Proof resilience-maximum energy absorbing capacity of a material in the elastic region is called proof resilience
Modulus of resilence-proof resilience per unit volume is called modules of resilience.
Ajai said:
1 decade ago
Strain energy is defined as the ability to absorb energy during deformation when the load is applied.
Resilience is defined as the ability to store energy upto elastic limit.
Max energy stored in elastic limit is called proof resilience.
Energy stored up to fracture is called toughness.
Per unit volume is called modulus of resilience and modulus of toughness.
Resilience is defined as the ability to store energy upto elastic limit.
Max energy stored in elastic limit is called proof resilience.
Energy stored up to fracture is called toughness.
Per unit volume is called modulus of resilience and modulus of toughness.
Jagadish said:
1 decade ago
When specimen is elongated within elastic limits, it can store maximum energy. But beyond elastic limit where specimen tends to permanent deformation, energy stored will always be less than that within elastic limits.
How can a material store energy when it is about to break i.e. its neck? It has no more energy, totally weak. Hence 'within elastic limit'.
How can a material store energy when it is about to break i.e. its neck? It has no more energy, totally weak. Hence 'within elastic limit'.
Vipul kumar said:
8 years ago
1. Strain energy is the ability of a body to absorb energy, so when we are saying just strain energy then we are referring to the total energy the body can store upto fracture.
2. Resilience is the ability of a body store energy when it is deformed elastically only.
So I think both the answers are given wrong related to the strain energy concept.
2. Resilience is the ability of a body store energy when it is deformed elastically only.
So I think both the answers are given wrong related to the strain energy concept.
Er.. Vikash Kumar Yadav said:
1 decade ago
The work done is straining the material within the elastic limits is know as strain energy.
When a body is loaded within elastic limit is dimension are changed. On removal of load it regains its original dimension. During loading energy is stored in the body. The amount of internal energy stored in the body is called resilience or strain energy.
When a body is loaded within elastic limit is dimension are changed. On removal of load it regains its original dimension. During loading energy is stored in the body. The amount of internal energy stored in the body is called resilience or strain energy.
Shiva said:
6 years ago
Strain Energy-It is the ability of a material to absorb energy when it is strained
Resilience-Ability of a material to absorb energy in the elastic region when it is strained.
Proof Resilience-Maximum energy absorbing capacity of a material in the elastic region is called proof resilience.
Hence option A and B both can be correct.
Resilience-Ability of a material to absorb energy in the elastic region when it is strained.
Proof Resilience-Maximum energy absorbing capacity of a material in the elastic region is called proof resilience.
Hence option A and B both can be correct.
(3)
Lalit said:
1 decade ago
It's by definition that stain energy stored in a body is within elastic limit. Yeah there will be some more strain energy after elastic limit. But as after elastic limit body can't regain back it's original position and so we do not consider that energy. Because after yielding point body is said to be failed.
Ajay Lather said:
1 decade ago
Strain energy is the energy, When stored the energy to any material such the material is not breaking is called strain energy.
For example - We draw the Strain - Stress Diagram to applied the force Strain and Stress both are increase but become a point our material just breaking this point is Elastic Point.
For example - We draw the Strain - Stress Diagram to applied the force Strain and Stress both are increase but become a point our material just breaking this point is Elastic Point.
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