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Length of Rod or Shaft is defined as the total length of the rod or the shaft according to Castiglano's theorom. Check FAQs
L=U2AEP2
L - Length of Rod or Shaft?U - Strain Energy in Rod or Shaft?A - Cross Sectional Area of Rod?E - Modulus of elasticity of rod or shaft?P - Axial Force on Beam?

Length of Rod given Strain Energy Stored Example

With values
With units
Only example

Here is how the Length of Rod given Strain Energy Stored equation looks like with Values.

Here is how the Length of Rod given Strain Energy Stored equation looks like with Units.

Here is how the Length of Rod given Strain Energy Stored equation looks like.

1330.4415Edit=40Edit2513.34Edit98000Edit55000Edit2
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Length of Rod given Strain Energy Stored Solution

Follow our step by step solution on how to calculate Length of Rod given Strain Energy Stored?

FIRST Step Consider the formula
L=U2AEP2
Next Step Substitute values of Variables
L=40J2513.34mm²98000N/mm²55000N2
Next Step Convert Units
L=40J20.00059.8E+10Pa55000N2
Next Step Prepare to Evaluate
L=4020.00059.8E+10550002
Next Step Evaluate
L=1.33044152066116m
Next Step Convert to Output's Unit
L=1330.44152066116mm
LAST Step Rounding Answer
L=1330.4415mm

Length of Rod given Strain Energy Stored Formula Elements

Variables
Length of Rod or Shaft
Length of Rod or Shaft is defined as the total length of the rod or the shaft according to Castiglano's theorom.
Symbol: L
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Strain Energy in Rod or Shaft
Strain Energy in Rod or Shaft is defined as the energy stored in a rod or a shaft due to deformation.
Symbol: U
Measurement: EnergyUnit: J
Note: Value should be greater than 0.
Cross Sectional Area of Rod
Cross Sectional Area of Rod is the area of a two-dimensional shape that is obtained when a three-dimensional rod is sliced perpendicular to some specified axis at a point.
Symbol: A
Measurement: AreaUnit: mm²
Note: Value should be greater than 0.
Modulus of elasticity of rod or shaft
Modulus of elasticity of rod or shaft is a quantity that measures an object or substance's resistance to being deformed elastically when stress is applied to it.
Symbol: E
Measurement: StressUnit: N/mm²
Note: Value should be greater than 0.
Axial Force on Beam
Axial Force on Beam is defined as the compression or tension force acting on a beam, rod, or shaft.
Symbol: P
Measurement: ForceUnit: N
Note: Value can be positive or negative.

Other Formulas to find Length of Rod or Shaft

​Go Length of Shaft when Strain Energy in Shaft Subjected to External Torque
L=2UJGτ2
​Go Length of Shaft given Strain Energy Stored in Shaft Subjected to Bending Moment
L=2UEIMb2

Other formulas in Castigliano's Theorem for Deflection in Complex Structures category

​Go Strain Energy Stored in Tension Rod
U=(P2)L2AE
​Go Force Applied on Rod given Strain Energy Stored in Tension Rod
P=U2AEL
​Go Modulus of Elasticity of Rod given Strain Energy Stored
E=P2L2AU
​Go Strain Energy in Rod when it is Subjected to External Torque
U=(τ2)L2JG

How to Evaluate Length of Rod given Strain Energy Stored?

Length of Rod given Strain Energy Stored evaluator uses Length of Rod or Shaft = Strain Energy in Rod or Shaft*2*Cross Sectional Area of Rod*Modulus of elasticity of rod or shaft/Axial Force on Beam^2 to evaluate the Length of Rod or Shaft, The Length of Rod given Strain Energy Stored formula is defined as the total length of the rod on which the force is applied and that force applied is converted to strain energy. Length of Rod or Shaft is denoted by L symbol.

How to evaluate Length of Rod given Strain Energy Stored using this online evaluator? To use this online evaluator for Length of Rod given Strain Energy Stored, enter Strain Energy in Rod or Shaft (U), Cross Sectional Area of Rod (A), Modulus of elasticity of rod or shaft (E) & Axial Force on Beam (P) and hit the calculate button.

FAQs on Length of Rod given Strain Energy Stored

What is the formula to find Length of Rod given Strain Energy Stored?
The formula of Length of Rod given Strain Energy Stored is expressed as Length of Rod or Shaft = Strain Energy in Rod or Shaft*2*Cross Sectional Area of Rod*Modulus of elasticity of rod or shaft/Axial Force on Beam^2. Here is an example- 1.3E+6 = 40*2*0.00051334*98000000000/55000^2.
How to calculate Length of Rod given Strain Energy Stored?
With Strain Energy in Rod or Shaft (U), Cross Sectional Area of Rod (A), Modulus of elasticity of rod or shaft (E) & Axial Force on Beam (P) we can find Length of Rod given Strain Energy Stored using the formula - Length of Rod or Shaft = Strain Energy in Rod or Shaft*2*Cross Sectional Area of Rod*Modulus of elasticity of rod or shaft/Axial Force on Beam^2.
What are the other ways to Calculate Length of Rod or Shaft?
Here are the different ways to Calculate Length of Rod or Shaft-
  • Length of Rod or Shaft=(2*Strain Energy in Rod or Shaft*Polar Moment of Inertia of rod or shaft*Modulus of rigidity of rod or shaft)/(Torque on Rod or Shaft^2)OpenImg
  • Length of Rod or Shaft=2*Strain Energy in Rod or Shaft*Modulus of elasticity of rod or shaft*Area Moment of Inertia of rod or shaft/(Bending Moment in Shaft or Beam^2)OpenImg
Can the Length of Rod given Strain Energy Stored be negative?
No, the Length of Rod given Strain Energy Stored, measured in Length cannot be negative.
Which unit is used to measure Length of Rod given Strain Energy Stored?
Length of Rod given Strain Energy Stored is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Length of Rod given Strain Energy Stored can be measured.
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