Load taken by Studs Calculator

✖Stud Diameter is the size of the bolt or stud that the ring or spade terminal will be placed around.ⓘ Stud Diameter [d_s]			+10% -10%
✖Number of Bolts is simply defined as the number of bolts that are under our consideration.ⓘ Number of Bolts [n]			+10% -10%
✖Allowable Stress in Stud Material is defined as the material failure stress (a property of the material) divided by a factor of safety greater than one.ⓘ Allowable Stress in Stud Material [f_t]			+10% -10%

✖Load by Stud is the term applied when some form of spring energization is included in the stud bolting system.ⓘ Load taken by Studs [F_Stud]

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Formula

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Load taken by Studs

Formula

`"F"_{"Stud"} = (pi/4)*("d"_{"s"}^(2)*("n"*"f"_{"t"}))`

Example

`"29157.91N"=(pi/4)*(("15mm")^(2)*("3"*"55N/mm²"))`

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Load taken by Studs Solution

STEP 0: Pre-Calculation Summary

Formula Used

Load by Stud = (pi/4)*(Stud Diameter^(2)*(Number of Bolts*Allowable Stress in Stud Material))
F_Stud = (pi/4)*(d_s^(2)*(n*f_t))
This formula uses 1 Constants, 4 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Load by Stud - (Measured in Newton) - Load by Stud is the term applied when some form of spring energization is included in the stud bolting system.
Stud Diameter - (Measured in Meter) - Stud Diameter is the size of the bolt or stud that the ring or spade terminal will be placed around.
Number of Bolts - Number of Bolts is simply defined as the number of bolts that are under our consideration.
Allowable Stress in Stud Material - (Measured in Pascal) - Allowable Stress in Stud Material is defined as the material failure stress (a property of the material) divided by a factor of safety greater than one.

STEP 1: Convert Input(s) to Base Unit

Stud Diameter: 15 Millimeter --> 0.015 Meter (Check conversion here)
Number of Bolts: 3 --> No Conversion Required
Allowable Stress in Stud Material: 55 Newton per Square Millimeter --> 55000000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

F_Stud = (pi/4)*(d_s^(2)*(n*f_t)) --> (pi/4)*(0.015^(2)*(3*55000000))

Evaluating ... ...

F_Stud = 29157.9068161303

STEP 3: Convert Result to Output's Unit

29157.9068161303 Newton --> No Conversion Required

FINAL ANSWER

29157.9068161303 ≈ 29157.91 Newton <-- Load by Stud

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Process Equipment Design » Agitators » Design of Stuffing Box and Gland » Load taken by Studs

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< 10+ Design of Stuffing Box and Gland Calculators

Thickness of Stuffing Box Body

Go Thickness of Stuffing Box Body = (Design Pressure of Stuffing Box*Internal Diameter Stuffing Box)/(2*Allowable Stress for the Stuffing Box Material)+6

Load on Gland

Go Load by Gland = (pi/4)*Design Pressure of Stuffing Box*(Internal Diameter Stuffing Box^(2)-Diameter of Shaft^(2))

Diameter of Stud under Load

Go Stud Diameter = (Load by Stud*4/pi*1/(Number of Bolts*Allowable Stress in Stud Material))^(0.5)

Diameter of Bolt under Load

Go Bolt Diameter = (Load by Stud*4/pi*1/(Number of Bolts*Allowable Stress in Stud Material))^(0.5)

Load taken by Studs

Go Load by Stud = (pi/4)*(Stud Diameter^(2)*(Number of Bolts*Allowable Stress in Stud Material))

Load taken by Bolts

Go Load by Bolt = (pi/4)*(Bolt Diameter^(2)*(Number of Bolts*Allowable Stress in Stud Material))

Internal Diameter of Stuffing Box

Go Internal Diameter Stuffing Box = Diameter of Shaft+2*Clearance between Shaft and Stuffing Box

Clearance between Shaft and Stuffing Box if Shaft Diameter is Greater than 100mm

Go Clearance between Shaft and Stuffing Box = 2.5*(Diameter of Shaft)^0.5

Clearance between Shaft and Stuffing Box if Shaft Diameter is less than equal to 100mm

Go Clearance between Shaft and Stuffing Box = 0.2*Diameter of Shaft+5

Thickness of Gland Flange

Go Thickness of Gland Flange = (Diameter of Shaft/8)+12.5

Load taken by Studs Formula

Load by Stud = (pi/4)*(Stud Diameter^(2)*(Number of Bolts*Allowable Stress in Stud Material))
F_Stud = (pi/4)*(d_s^(2)*(n*f_t))

What are Studs?

A stud is essentially just a piece of threaded bar. This often resembles a machine screw without a head, although some studs to have heads that get permanently incorporated into the part they are attached to. Studs are often designed to be permanently attached to one part, proving a means of attaching another part in conjunction with a nut. This type of stud may be welded, swaged or bonded to attach it and may, therefore, have a small head to enable this.

How to Calculate Load taken by Studs?

Load taken by Studs calculator uses Load by Stud = (pi/4)*(Stud Diameter^(2)*(Number of Bolts*Allowable Stress in Stud Material)) to calculate the Load by Stud, The Load taken by Studs formula is is used to seal a rotating or reciprocating shaft against a fluid. The most common example is in the head of a tap (faucet) where the Studs is usually packed with string which has been soaked in tallow or similar grease. Load by Stud is denoted by F_Stud symbol.

How to calculate Load taken by Studs using this online calculator? To use this online calculator for Load taken by Studs, enter Stud Diameter (d_s), Number of Bolts (n) & Allowable Stress in Stud Material (f_t) and hit the calculate button. Here is how the Load taken by Studs calculation can be explained with given input values -> 29157.91 = (pi/4)*(0.015^(2)*(3*55000000)).

FAQ

What is Load taken by Studs?

The Load taken by Studs formula is is used to seal a rotating or reciprocating shaft against a fluid. The most common example is in the head of a tap (faucet) where the Studs is usually packed with string which has been soaked in tallow or similar grease and is represented as F_Stud = (pi/4)*(d_s^(2)*(n*f_t)) or Load by Stud = (pi/4)*(Stud Diameter^(2)*(Number of Bolts*Allowable Stress in Stud Material)). Stud Diameter is the size of the bolt or stud that the ring or spade terminal will be placed around, Number of Bolts is simply defined as the number of bolts that are under our consideration & Allowable Stress in Stud Material is defined as the material failure stress (a property of the material) divided by a factor of safety greater than one.

How to calculate Load taken by Studs?

The Load taken by Studs formula is is used to seal a rotating or reciprocating shaft against a fluid. The most common example is in the head of a tap (faucet) where the Studs is usually packed with string which has been soaked in tallow or similar grease is calculated using Load by Stud = (pi/4)*(Stud Diameter^(2)*(Number of Bolts*Allowable Stress in Stud Material)). To calculate Load taken by Studs, you need Stud Diameter (d_s), Number of Bolts (n) & Allowable Stress in Stud Material (f_t). With our tool, you need to enter the respective value for Stud Diameter, Number of Bolts & Allowable Stress in Stud Material 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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