beam analysis using solidworks simulation

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Beam Analysis using SolidWorks Simulation


What is Beam? Beam is a Structural member which is acted upon by a system of external loads at right angle to the axis.


What happens in a beam? When beam Bends

Top surface is compressed

Bottom surface is stretched (Tension)

Strength at centre is not so important

Concentrate on both areas of a beam to be strong


How to Design a beam? Major Design issues in constructing a beam

Beam should be light as possible without reducing its strength.

Strength to weight ratio

The specific strength is a material's strength (force per unit area at failure) divided by its density. It is also known as the strength-to-weight ratio or strength/weight ratio.

Modern beams have made beams to be lighter without compromising on strength


Classifications of Beams Cantilever beams

Simply or freely supported beam

Overhanging beam

Fixed beam

Continuous Beam

Combinations of above beams

First three beams comes under Statistically determinate Beams Last two comes under statistically in-determinate Beams


Shear Force & Bending Moment Shear Force

Shear Force is the force in the beam acting perpendicular to its longitudinal axis.

For Design purpose,

The Beam ability to resist shear force is more important than its ability to resist an axial force.

Bending Moment

A bending moment is the reaction induced in a structural element when an external force or moment is applied to the element causing the element to bend.


Why SF & BM diagramsShear force and Bending moment Diagrams used to determine

SizeTypeShapeMaterial

So that the given set of loads can support the beam without structure failure.


Cantilever Beam AnalysisUsing SolidWorks Simulation

Name: Alloy Steel

Model type: Linear Elastic Isotropic

Default failure criterion: Max von Mises Stress

Yield strength: 6.20422e+008 N/m^2

Tensile strength: 7.23826e+008 N/m^2

Elastic modulus: 2.1e+011 N/m^2

Poisson's ratio: 0.28

Shear modulus: 7.9e+010 N/m^2

Thermal expansion coefficient:

1.3e-005 /Kelvin

Beam DetailsSection Area 0.01m^2

Length 5000mm

Volume 0.05m^3

Mass Density 7700kg/m^3

Mass 385kg

Weight 3773N

Material Properties

Beam


Cantilever Beam – Point Load

Fixed End

P = 20KN


Cantilever Beam – Point Load ResultsStress Result Displacement Result

BM DiagramSF Diagram


Cantilever Beam – Uniformly Distributed Load

P = 20KNFixed End


Cantilever Beam – Uniformly Distributed Load ResultsStress Result Displacement Result



Cantilever Beam – Uniformly Varying Load

P = 20KN

P = 0 N

Fixed End


Cantilever Beam – Uniformly Varying Load ResultsStress Result Displacement Result



Results ComparisonName Type Min Max

Point LoadStress Upper bound axial and bending 4.412 N/mm^2 (MPa)

Element: 1600.000 N/mm^2 (MPa)Element: 136

Displacement URES: Resultant Displacement 0.000 mmNode: 137

476.342 mmNode: 1

Uniformly Distributed LoadStress Upper bound axial and bending 0.016 N/mm^2 (MPa)



178.647 mmNode: 1

Uniformly Varying LoadStress Upper bound axial and bending 0.000 N/mm^2 (MPa)



238.222 mmNode: 1


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