Resultant Load on Bolt Calculator

✖The Initial preload in bolt due to tightening of nut is defined as the difference between the resultant load on the bolt and change in external load.ⓘ Initial preload in bolt due to tightening of nut [P_i]			+10% -10%
✖Change in External Load is the amount of variation in the externally applied force or load.ⓘ Change in External Load [ΔP_i]			+10% -10%

✖Resultant load on bolt is the total resultant force/load acting on the bolt after tightening the bolt.ⓘ Resultant Load on Bolt [P_b]

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Formula

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Resultant Load on Bolt

Formula

`"P"_{"b"} = "P"_{"i"}+"ΔP"_{"i"}`

Example

`"6755N"="850N"+"5905N"`

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Resultant Load on Bolt Solution

STEP 0: Pre-Calculation Summary

Formula Used

Resultant load on bolt = Initial preload in bolt due to tightening of nut+Change in External Load
P_b = P_i+ΔP_i
This formula uses 3 Variables

Variables Used

Resultant load on bolt - (Measured in Newton) - Resultant load on bolt is the total resultant force/load acting on the bolt after tightening the bolt.
Initial preload in bolt due to tightening of nut - (Measured in Newton) - The Initial preload in bolt due to tightening of nut is defined as the difference between the resultant load on the bolt and change in external load.
Change in External Load - (Measured in Newton) - Change in External Load is the amount of variation in the externally applied force or load.

STEP 1: Convert Input(s) to Base Unit

Initial preload in bolt due to tightening of nut: 850 Newton --> 850 Newton No Conversion Required
Change in External Load: 5905 Newton --> 5905 Newton No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_b = P_i+ΔP_i --> 850+5905

Evaluating ... ...

P_b = 6755

STEP 3: Convert Result to Output's Unit

6755 Newton --> No Conversion Required

FINAL ANSWER

6755 Newton <-- Resultant load on bolt

(Calculation completed in 00.022 seconds)

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Credits

Created by Vaibhav Malani

National Institute of Technology (NIT), Tiruchirapalli

Vaibhav Malani has created this Calculator and 600+ more calculators!

Verified by Rajat Vishwakarma

University Institute of Technology RGPV (UIT - RGPV), Bhopal

Rajat Vishwakarma has verified this Calculator and 400+ more calculators!

< 17 Structural Response and Force Analysis Calculators

Change in external load on bolt given external load and stiffness of boad

Go Change in External Load = External Force on Bolt*(Stiffness of Threaded Bolt/(Stiffness of Threaded Bolt+Combined Stiffness of Gasket and Parts))

Tensile Stress Area of Threaded fastener

Go Tensile stress area of threaded fastener = (pi/4)*(((Pitch Diameter of External Thread+Minor Diameter of External Thread)/2)^2)

Shear Stress at Core Diameter of Threaded Fastener given Tensile Force

Go Shear stress in bolt = Tensile Force on Bolt/(pi*Core Diameter of Threaded Bolt*Height of nut)

Tensile Force acting on Bolt given Shear Stress

Go Tensile Force on Bolt = (pi*Shear stress in bolt*Core Diameter of Threaded Bolt*Height of nut)

Tensile Force acting on Bolt

Go Tensile Force on Bolt = (pi*Shear stress in bolt*Core Diameter of Threaded Bolt*Height of nut)

Tensile Stress in Core Cross-Section of Bolt given Tensile Force and Core Diameter

Go Tensile stress in bolt = Tensile Force on Bolt/((pi/4)*(Core Diameter of Threaded Bolt^2))

Tensile Force acting on Bolt given Tensile Stress

Go Tensile Force on Bolt = Tensile stress in bolt*pi*(Core Diameter of Threaded Bolt^2)/4

Change in Load on Bolt given Resultant Load and Initial Preload in Bolt

Go Change in External Load = Resultant load on bolt-Initial preload in bolt due to tightening of nut

Initial Preload in Bolt due to Tightening

Go Initial preload in bolt due to tightening of nut = Resultant load on bolt-Change in External Load

Resultant Load on Bolt

Go Resultant load on bolt = Initial preload in bolt due to tightening of nut+Change in External Load

Shear Stress at Core Diameter of Threaded Fasteners given Tensile Yield Strength

Go Shear stress in bolt = Tensile yield strength of bolt/(2*Factor of Safety for Bolt)

Tensile Stress in Core Cross-Section of Bolt given Tensile Yield Strength

Go Tensile stress in bolt = Tensile yield strength of bolt/Factor of Safety for Bolt

Tensile Yield Strength of Bolt

Go Tensile yield strength of bolt = Factor of Safety for Bolt*Tensile stress in bolt

Shear Stress at Core Diameter given Shear Yield Strength of Threaded Fastener

Go Shear stress in bolt = Shear yield strength of bolt/Factor of Safety for Bolt

Primary Shear Force on each Bolt

Go Primary shear load on bolt = External Force on Bolt/Number of Bolts in Joint

External Force on Bolt

Go External Force on Bolt = Number of Bolts in Joint*Primary shear load on bolt

Ultimate Tensile Strength of Bolt

Go Ultimate tensile strength of bolt = 2*Endurance limit of rotating beam bolt specimen

Resultant Load on Bolt Formula

Resultant load on bolt = Initial preload in bolt due to tightening of nut+Change in External Load
P_b = P_i+ΔP_i

What is a fastener?

A fastener or fastening is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components.

How to Calculate Resultant Load on Bolt?

Resultant Load on Bolt calculator uses Resultant load on bolt = Initial preload in bolt due to tightening of nut+Change in External Load to calculate the Resultant load on bolt, The Resultant Load on Bolt formula is defined as the sum of initial preload due to the tightening of the nut and the change in the external load. Resultant load on bolt is denoted by P_b symbol.

How to calculate Resultant Load on Bolt using this online calculator? To use this online calculator for Resultant Load on Bolt, enter Initial preload in bolt due to tightening of nut (P_i) & Change in External Load (ΔP_i) and hit the calculate button. Here is how the Resultant Load on Bolt calculation can be explained with given input values -> 6755 = 850+5905.

FAQ

What is Resultant Load on Bolt?

The Resultant Load on Bolt formula is defined as the sum of initial preload due to the tightening of the nut and the change in the external load and is represented as P_b = P_i+ΔP_i or Resultant load on bolt = Initial preload in bolt due to tightening of nut+Change in External Load. The Initial preload in bolt due to tightening of nut is defined as the difference between the resultant load on the bolt and change in external load & Change in External Load is the amount of variation in the externally applied force or load.

How to calculate Resultant Load on Bolt?

The Resultant Load on Bolt formula is defined as the sum of initial preload due to the tightening of the nut and the change in the external load is calculated using Resultant load on bolt = Initial preload in bolt due to tightening of nut+Change in External Load. To calculate Resultant Load on Bolt, you need Initial preload in bolt due to tightening of nut (P_i) & Change in External Load (ΔP_i). With our tool, you need to enter the respective value for Initial preload in bolt due to tightening of nut & Change in External Load 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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