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Initial Preload due to Bolt tightening Formula

GoInitial Preload due to Bolt tightening given kb and kc Formula

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Initial preload due to bolt tightening value is the tension created in a fastener when it is tightened. Check FAQs

P l = P b - ΔP i

P_l - Initial Preload Due to Bolt Tightening?P_b - Resultant Load on Pressurized Cylinder Bolt?ΔP_i - Increase in Bolt Load of Cylinder?

Initial Preload due to Bolt tightening Example

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Here is how the Initial Preload due to Bolt tightening equation looks like with Values.

Here is how the Initial Preload due to Bolt tightening equation looks like with Units.

Here is how the Initial Preload due to Bolt tightening equation looks like.

19450 = 24500 - 5050

19450N = 24500N - 5050N

19450 = 24500 - 5050

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Initial Preload due to Bolt tightening Solution

Follow our step by step solution on how to calculate Initial Preload due to Bolt tightening?

FIRST Step Consider the formula

P l = P b - ΔP i

Next Step Substitute values of Variables

∴

P l = 24500N - 5050N

Next Step Prepare to Evaluate

∴

P l = 24500 - 5050

LAST Step Evaluate

∴

P l = 19450N

Initial Preload due to Bolt tightening Formula Elements

Variables

Initial Preload Due to Bolt Tightening

Initial preload due to bolt tightening value is the tension created in a fastener when it is tightened.

Symbol: P_l

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Initial Preload Due to Bolt Tightening

Resultant Load on Pressurized Cylinder Bolt

Resultant load on pressurized cylinder bolt is the total resultant force/load acting on the bolt after tightening the bolt.

Symbol: P_b

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Resultant Load on Pressurized Cylinder Bolt

Increase in Bolt Load of Cylinder

Increase in Bolt Load of Cylinder is the amount of variation in the externally applied force or load by the bolt or on the bolt by the effect of increase in pressure inside the cylinder.

Symbol: ΔP_i

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Increase in Bolt Load of Cylinder

Other Formulas to find Initial Preload Due to Bolt Tightening

Go Initial Preload due to Bolt tightening given kb and kc

P l = P max \cdot (\frac{k b}{k c + k b})

Other formulas in Bolt of Pressurized Cylinder category

Go Thickness of Pressurized Cylinder

t w = (\frac{d i}{2}) \cdot (({(\frac{σ t + P i}{σ t - P i})}^{\frac{1}{2}}) - 1)

Go Internal Diameter of Pressurized Cylinder

d i = 2 \cdot \frac{t w}{({(\frac{σ t + P i}{σ t - P i})}^{\frac{1}{2}}) - 1}

Go Decrease in Outer Diameter of Cylinder given Total deformation in Pressure Vessel

δ c = δ - δ j

Go Resultant Load on Bolt given Pre load

P b = P l + ΔP i

How to Evaluate Initial Preload due to Bolt tightening?

Initial Preload due to Bolt tightening evaluator uses Initial Preload Due to Bolt Tightening = Resultant Load on Pressurized Cylinder Bolt-Increase in Bolt Load of Cylinder to evaluate the Initial Preload Due to Bolt Tightening, Initial Preload due to Bolt tightening formula is defined as the amount of load into the bolt before it is actually tightened. Initial Preload Due to Bolt Tightening is denoted by P_l symbol.

How to evaluate Initial Preload due to Bolt tightening using this online evaluator? To use this online evaluator for Initial Preload due to Bolt tightening, enter Resultant Load on Pressurized Cylinder Bolt (P_b) & Increase in Bolt Load of Cylinder (ΔP_i) and hit the calculate button.

FAQs on Initial Preload due to Bolt tightening

What is the formula to find Initial Preload due to Bolt tightening?

The formula of Initial Preload due to Bolt tightening is expressed as Initial Preload Due to Bolt Tightening = Resultant Load on Pressurized Cylinder Bolt-Increase in Bolt Load of Cylinder. Here is an example- 19450 = 24500-5050.

How to calculate Initial Preload due to Bolt tightening?

With Resultant Load on Pressurized Cylinder Bolt (P_b) & Increase in Bolt Load of Cylinder (ΔP_i) we can find Initial Preload due to Bolt tightening using the formula - Initial Preload Due to Bolt Tightening = Resultant Load on Pressurized Cylinder Bolt-Increase in Bolt Load of Cylinder.

What are the other ways to Calculate Initial Preload Due to Bolt Tightening?

Here are the different ways to Calculate Initial Preload Due to Bolt Tightening-

Initial Preload Due to Bolt Tightening=Maximum Force Inside Pressurized Cylinder*(Stiffness of Pressurized Cylinder Bolt/(Combined Stiffness for Gasket Joint+Stiffness of Pressurized Cylinder Bolt))

Can the Initial Preload due to Bolt tightening be negative?

No, the Initial Preload due to Bolt tightening, measured in Force cannot be negative.

Which unit is used to measure Initial Preload due to Bolt tightening?

Initial Preload due to Bolt tightening is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Initial Preload due to Bolt tightening can be measured.

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Initial Preload due to Bolt tightening Formula

​GoInitial Preload due to Bolt tightening given kb and kc Formula

Initial Preload due to Bolt tightening Example

Initial Preload due to Bolt tightening Solution

Initial Preload due to Bolt tightening Formula Elements

Other Formulas to find Initial Preload Due to Bolt Tightening

Other formulas in Bolt of Pressurized Cylinder category

How to Evaluate Initial Preload due to Bolt tightening?

FAQs on Initial Preload due to Bolt tightening

Variable Name

GoInitial Preload due to Bolt tightening given kb and kc Formula