Ultimate Creep Strain Calculator

✖Creep Coefficient of Prestress is the ratio of Creep strain to elastic strain.ⓘ Creep Coefficient of Prestress [Φ]			+10% -10%
✖Elastic Strain is defined as the limit for the values of strain up to which the object will rebound and come back to the original shape upon the removal of the load.ⓘ Elastic Strain [ε_el]			+10% -10%

✖Ultimate Creep Strain is caused due to the sustained load for a long period of time.ⓘ Ultimate Creep Strain [ε_cr,ult]

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Formula

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Ultimate Creep Strain

Formula

`"ε"_{"cr,ult"} = "Φ"*"ε"_{"el"}`

Example

`"0.8"="1.6"*"0.50"`

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Download Loss due to Anchorage Slip, Friction Loss and General Geometric Properties Formulas PDF

Ultimate Creep Strain Solution

STEP 0: Pre-Calculation Summary

Formula Used

Ultimate Creep Strain = Creep Coefficient of Prestress*Elastic Strain
ε_cr,ult = Φ*ε_el
This formula uses 3 Variables

Variables Used

Ultimate Creep Strain - Ultimate Creep Strain is caused due to the sustained load for a long period of time.
Creep Coefficient of Prestress - Creep Coefficient of Prestress is the ratio of Creep strain to elastic strain.
Elastic Strain - Elastic Strain is defined as the limit for the values of strain up to which the object will rebound and come back to the original shape upon the removal of the load.

STEP 1: Convert Input(s) to Base Unit

Creep Coefficient of Prestress: 1.6 --> No Conversion Required
Elastic Strain: 0.5 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ε_cr,ult = Φ*ε_el --> 1.6*0.5

Evaluating ... ...

ε_cr,ult = 0.8

STEP 3: Convert Result to Output's Unit

0.8 --> No Conversion Required

FINAL ANSWER

0.8 <-- Ultimate Creep Strain

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Structural Engineering » Prestressed Concrete » Losses of Prestress » Loss due to Anchorage Slip, Friction Loss and General Geometric Properties » Losses due to Creep and Shrinkage » Ultimate Creep Strain

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Created by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

Chandana P Dev has created this Calculator and 500+ more calculators!

Verified by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has verified this Calculator and 700+ more calculators!

< 7 Losses due to Creep and Shrinkage Calculators

Loss in Prestress given Creep Strain

Go Loss in Prestress = Modulus of Elasticity of Steel Reinforcement*Ultimate Creep Strain

Ultimate Shrinkage Strain given Loss in Prestress

Go Shrinkage Strain = Loss in Prestress/Modulus of Elasticity of Steel Reinforcement

Loss in Prestress given Shrinkage Strain

Go Loss in Prestress = Modulus of Elasticity of Steel Reinforcement*Shrinkage Strain

Creep Coefficient given Creep Strain

Go Creep Coefficient of Prestress = Ultimate Creep Strain/Elastic Strain

Elastic Strain given Creep Strain

Go Elastic Strain = Ultimate Creep Strain/Creep Coefficient of Prestress

Ultimate Creep Strain

Go Ultimate Creep Strain = Creep Coefficient of Prestress*Elastic Strain

Shrinkage Strain for Post tensioning

Go Shrinkage Strain = 0.002/(log10(Age of Concrete+2))

Ultimate Creep Strain Formula

Ultimate Creep Strain = Creep Coefficient of Prestress*Elastic Strain
ε_cr,ult = Φ*ε_el

What causes Creep Failure?

It can occur as a result of long-term exposure to high levels of stress that are still below the yield strength of the material. Creep is more severe in materials that are subjected to heat for long periods and generally increases as they near their melting point.

How to Calculate Ultimate Creep Strain?

Ultimate Creep Strain calculator uses Ultimate Creep Strain = Creep Coefficient of Prestress*Elastic Strain to calculate the Ultimate Creep Strain, The Ultimate Creep Strain is defined as the ultimate value for the strain obtained due to persistent loading for a long time. Ultimate Creep Strain is denoted by ε_cr,ult symbol.

How to calculate Ultimate Creep Strain using this online calculator? To use this online calculator for Ultimate Creep Strain, enter Creep Coefficient of Prestress (Φ) & Elastic Strain (ε_el) and hit the calculate button. Here is how the Ultimate Creep Strain calculation can be explained with given input values -> 0.8 = 1.6*0.5.

FAQ

What is Ultimate Creep Strain?

The Ultimate Creep Strain is defined as the ultimate value for the strain obtained due to persistent loading for a long time and is represented as ε_cr,ult = Φ*ε_el or Ultimate Creep Strain = Creep Coefficient of Prestress*Elastic Strain. Creep Coefficient of Prestress is the ratio of Creep strain to elastic strain & Elastic Strain is defined as the limit for the values of strain up to which the object will rebound and come back to the original shape upon the removal of the load.

How to calculate Ultimate Creep Strain?

The Ultimate Creep Strain is defined as the ultimate value for the strain obtained due to persistent loading for a long time is calculated using Ultimate Creep Strain = Creep Coefficient of Prestress*Elastic Strain. To calculate Ultimate Creep Strain, you need Creep Coefficient of Prestress (Φ) & Elastic Strain (ε_el). With our tool, you need to enter the respective value for Creep Coefficient of Prestress & Elastic Strain and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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