Axial Bending Stress due to Wind Load at Base of Vessel Solution

STEP 0: Pre-Calculation Summary
Formula Used
Axial Bending Stress at Base of Vessel = (4*Maximum Wind Moment)/(pi*(Mean Diameter of Skirt)^(2)*Thickness of Skirt)
fwb = (4*Mw)/(pi*(Dsk)^(2)*tsk)
This formula uses 1 Constants, 4 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
Axial Bending Stress at Base of Vessel - (Measured in Newton per Square Millimeter) - Axial Bending Stress at Base of Vessel refers to the stress that occurs when wind exerts a force on the vessel, causing it to bend or deform.
Maximum Wind Moment - (Measured in Newton Meter) - Maximum Wind Moment is calculated based on a number of factors, including the wind speed and direction, the size and shape of the building or structure, the materials used in construction.
Mean Diameter of Skirt - (Measured in Millimeter) - Mean Diameter of Skirt in a vessel will depend on the size and design of the vessel.
Thickness of Skirt - (Measured in Millimeter) - Thickness of Skirt is typically determined by calculating the maximum stress that the skirt is likely to experience and their must be sufficient to resist the weight of the vessel.
STEP 1: Convert Input(s) to Base Unit
Maximum Wind Moment: 370440000 Newton Millimeter --> 370440 Newton Meter (Check conversion here)
Mean Diameter of Skirt: 19893.55 Millimeter --> 19893.55 Millimeter No Conversion Required
Thickness of Skirt: 1.18 Millimeter --> 1.18 Millimeter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
fwb = (4*Mw)/(pi*(Dsk)^(2)*tsk) --> (4*370440)/(pi*(19893.55)^(2)*1.18)
Evaluating ... ...
fwb = 0.00101000007783447
STEP 3: Convert Result to Output's Unit
1010.00007783447 Pascal -->0.00101000007783447 Newton per Square Millimeter (Check conversion here)
FINAL ANSWER
0.00101000007783447 0.00101 Newton per Square Millimeter <-- Axial Bending Stress at Base of Vessel
(Calculation completed in 00.020 seconds)

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16 Design Thickness of Skirt Calculators

Wind Load acting on Lower Part of Vessel
Go Wind Load acting on Lower Part of Vessel = Coefficient depending on Shape Factor*Coefficient Period of One Cycle of Vibration*Wind Pressure acting on Lower Part of Vessel*Height of Lower Part of Vessel*Outside Diameter of Vessel
Wind Load acting on Upper Part of Vessel
Go Wind Load acting on Upper Part of Vessel = Coefficient depending on Shape Factor*Coefficient Period of One Cycle of Vibration*Wind Pressure acting on Upper Part of Vessel*Height of Upper Part of Vessel*Outside Diameter of Vessel
Maximum Wind Moment for Vessel with Total Height Greater than 20m
Go Maximum Wind Moment = Wind Load acting on Lower Part of Vessel*(Height of Lower Part of Vessel/2)+Wind Load acting on Upper Part of Vessel*(Height of Lower Part of Vessel+(Height of Upper Part of Vessel/2))
Thickness of Bearing Plate inside Chair
Go Thickness of Bearing Plate inside Chair = sqrt((6*Maximum Bending Moment in Bearing Plate)/((Width of Bearing Plate-Diameter of Bolt Hole in Bearing Plate)*Allowable Stress in Bolt Material))
Total Compressive Load on Base Ring
Go Total Compressive Load at Base Ring = (((4*Maximum Bending Moment)/((pi)*(Mean Diameter of Skirt)^(2)))+(Total Weight of Vessel/(pi*Mean Diameter of Skirt)))
Thickness of Base Bearing Plate
Go Thickness of Base Bearing Plate = Difference Outer Radius of Bearing Plate and Skirt*(sqrt((3*Maximum Compressive Stress)/(Allowable Bending Stress)))
Thickness of Skirt in Vessel
Go Thickness of Skirt in Vessel = (4*Maximum Wind Moment)/(pi*(Mean Diameter of Skirt)^(2)*Axial Bending Stress at Base of Vessel)
Axial Bending Stress due to Wind Load at Base of Vessel
Go Axial Bending Stress at Base of Vessel = (4*Maximum Wind Moment)/(pi*(Mean Diameter of Skirt)^(2)*Thickness of Skirt)
Maximum Bending Stress in Base Ring Plate
Go Maximum Bending Stress in Base Ring Plate = (6*Maximum Bending Moment)/(Circumferential Length of Bearing Plate*Thickness of Base Bearing Plate^(2))
Compressive Stress due to Vertical Downward Force
Go Compressive Stress due to Force = Total Weight of Vessel/(pi*Mean Diameter of Skirt*Thickness of Skirt)
Minimum Width of Base Ring
Go Minimum Width of Base Ring = Total Compressive Load at Base Ring/Stress in Bearing Plate and Concrete Foundation
Maximum Wind Moment for Vessel with Total Height Less than 20m
Go Maximum Wind Moment = Wind Load acting on Lower Part of Vessel*(Total Height of Vessel/2)
Maximum Bending Moment in Bearing Plate Inside Chair
Go Maximum Bending Moment in Bearing Plate = (Load on Each Bolt*Spacing Inside Chairs)/8
Maximum Tensile Stress
Go Maximum Tensile Stress = Stress due to Bending Moment-Compressive Stress due to Force
Moment Arm for Minimum Weight of Vessel
Go Moment Arm for Minimum Weight of Vessel = 0.42*Outer Diameter of Bearing Plate
Minimum Wind Pressure at Vessel
Go Minimum Wind Pressure = 0.05*(Maximum Wind Velocity)^(2)

Axial Bending Stress due to Wind Load at Base of Vessel Formula

Axial Bending Stress at Base of Vessel = (4*Maximum Wind Moment)/(pi*(Mean Diameter of Skirt)^(2)*Thickness of Skirt)
fwb = (4*Mw)/(pi*(Dsk)^(2)*tsk)

What is Design Stress?

Design stress is a term used in engineering to refer to the maximum amount of stress that a material or structure is designed to withstand without failing or experiencing deformation beyond acceptable limits. It is a critical parameter in the design process of any structure or machine, as exceeding the design stress can lead to failure or catastrophic consequences. To determine the design stress for a particular material or structure, engineers consider a variety of factors such as the material's properties, the anticipated loads and forces that will be applied, and the safety factors required to ensure that the structure can withstand unexpected events such as earthquakes or extreme weather conditions. In general, the design stress is calculated to be lower than the material's ultimate strength, which is the maximum stress the material can withstand before it fails completely.

How to Calculate Axial Bending Stress due to Wind Load at Base of Vessel?

Axial Bending Stress due to Wind Load at Base of Vessel calculator uses Axial Bending Stress at Base of Vessel = (4*Maximum Wind Moment)/(pi*(Mean Diameter of Skirt)^(2)*Thickness of Skirt) to calculate the Axial Bending Stress at Base of Vessel, Axial Bending Stress due to Wind Load at Base of Vessel refers to the stress that occurs when wind exerts a force on the vessel, causing it to bend or deform. Axial Bending Stress at Base of Vessel is denoted by fwb symbol.

How to calculate Axial Bending Stress due to Wind Load at Base of Vessel using this online calculator? To use this online calculator for Axial Bending Stress due to Wind Load at Base of Vessel, enter Maximum Wind Moment (Mw), Mean Diameter of Skirt (Dsk) & Thickness of Skirt (tsk) and hit the calculate button. Here is how the Axial Bending Stress due to Wind Load at Base of Vessel calculation can be explained with given input values -> 1E-9 = (4*370440)/(pi*(19.89355)^(2)*0.00118).

FAQ

What is Axial Bending Stress due to Wind Load at Base of Vessel?
Axial Bending Stress due to Wind Load at Base of Vessel refers to the stress that occurs when wind exerts a force on the vessel, causing it to bend or deform and is represented as fwb = (4*Mw)/(pi*(Dsk)^(2)*tsk) or Axial Bending Stress at Base of Vessel = (4*Maximum Wind Moment)/(pi*(Mean Diameter of Skirt)^(2)*Thickness of Skirt). Maximum Wind Moment is calculated based on a number of factors, including the wind speed and direction, the size and shape of the building or structure, the materials used in construction, Mean Diameter of Skirt in a vessel will depend on the size and design of the vessel & Thickness of Skirt is typically determined by calculating the maximum stress that the skirt is likely to experience and their must be sufficient to resist the weight of the vessel.
How to calculate Axial Bending Stress due to Wind Load at Base of Vessel?
Axial Bending Stress due to Wind Load at Base of Vessel refers to the stress that occurs when wind exerts a force on the vessel, causing it to bend or deform is calculated using Axial Bending Stress at Base of Vessel = (4*Maximum Wind Moment)/(pi*(Mean Diameter of Skirt)^(2)*Thickness of Skirt). To calculate Axial Bending Stress due to Wind Load at Base of Vessel, you need Maximum Wind Moment (Mw), Mean Diameter of Skirt (Dsk) & Thickness of Skirt (tsk). With our tool, you need to enter the respective value for Maximum Wind Moment, Mean Diameter of Skirt & Thickness of Skirt 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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