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Factor of Safety expresses how much stronger a system is than it needs to be for an intended load. Check FAQs
fs=σstatic loadσal
fs - Factor of Safety?σstatic load - Tensile Yield Strength for Static Load?σal - Allowable Stress for Static Load?

Factor of safety for ductile materials Example

With values
With units
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Here is how the Factor of safety for ductile materials equation looks like with Values.

Here is how the Factor of safety for ductile materials equation looks like with Units.

Here is how the Factor of safety for ductile materials equation looks like.

1.8889Edit=85Edit45Edit
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Factor of safety for ductile materials Solution

Follow our step by step solution on how to calculate Factor of safety for ductile materials?

FIRST Step Consider the formula
fs=σstatic loadσal
Next Step Substitute values of Variables
fs=85N/mm²45N/mm²
Next Step Convert Units
fs=8.5E+7Pa4.5E+7Pa
Next Step Prepare to Evaluate
fs=8.5E+74.5E+7
Next Step Evaluate
fs=1.88888888888889
LAST Step Rounding Answer
fs=1.8889

Factor of safety for ductile materials Formula Elements

Variables
Factor of Safety
Factor of Safety expresses how much stronger a system is than it needs to be for an intended load.
Symbol: fs
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Tensile Yield Strength for Static Load
Tensile Yield Strength for Static Load is the stress a material can withstand without permanent deformation or a point at which it will no longer return to its original dimensions.
Symbol: σstatic load
Measurement: StressUnit: N/mm²
Note: Value should be greater than 0.
Allowable Stress for Static Load
Allowable Stress for Static Load is also known as working load and is the ratio of tensile strength and factor of safety.
Symbol: σal
Measurement: StressUnit: N/mm²
Note: Value should be greater than 0.

Other Formulas to find Factor of Safety

​Go Factor of safety for brittle materials
fs=Sutσal

Other formulas in Design for Brittle and Ductile Material under Static Load category

​Go Allowable stress for ductile material
σal=σstatic loadfs
​Go Yield strength for ductile materials
σstatic load=σalfs
​Go Allowable stress for brittle material
σal=Sutfs
​Go Ultimate tensile strength for brittle materials
Sut=σalfs

How to Evaluate Factor of safety for ductile materials?

Factor of safety for ductile materials evaluator uses Factor of Safety = Tensile Yield Strength for Static Load/Allowable Stress for Static Load to evaluate the Factor of Safety, The Factor of safety for ductile materials formula is defined as the ratio of ultimate tensile strength and allowable stress. It is the required margin of safety for a structure or component according to code, law, or design requirements. In this case, the failure stress is equal to tensile yield stress. Factor of Safety is denoted by fs symbol.

How to evaluate Factor of safety for ductile materials using this online evaluator? To use this online evaluator for Factor of safety for ductile materials, enter Tensile Yield Strength for Static Load static load) & Allowable Stress for Static Load al) and hit the calculate button.

FAQs on Factor of safety for ductile materials

What is the formula to find Factor of safety for ductile materials?
The formula of Factor of safety for ductile materials is expressed as Factor of Safety = Tensile Yield Strength for Static Load/Allowable Stress for Static Load. Here is an example- 1.888889 = 85000000/45000000.
How to calculate Factor of safety for ductile materials?
With Tensile Yield Strength for Static Load static load) & Allowable Stress for Static Load al) we can find Factor of safety for ductile materials using the formula - Factor of Safety = Tensile Yield Strength for Static Load/Allowable Stress for Static Load.
What are the other ways to Calculate Factor of Safety?
Here are the different ways to Calculate Factor of Safety-
  • Factor of Safety=Ultimate Tensile Strength/Allowable Stress for Static LoadOpenImg
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