P14042 Una CrutchRIT MSD

Simulation of pad_frameDate: Wednesday, December 11, 2013Designer: P14042 Una CrutchStudy name: single pad analysisAnalysis type: Static

Table of ContentsDescription...............................................1Assumptions.............................................2Model Information.....................................2Study Properties.......................................3Units.........................................................4Material Properties...................................4Loads and Fixtures...................................5Mesh Information......................................6Resultant Forces.......................................7Study Results............................................8Conclusion..............................................13

DescriptionThis report details a Static Finite Element Analysis for a single Pad Frame connected on the Una Crutch.

Analyzed with SolidWorks Simulation Simulation of pad_frame 1

P14042 Una CrutchRIT MSD P14042 Una Crutch

12/11/2013

AssumptionsComments:The sum of the forces equals zero and neglecting friction at the top and base of the part.

Analyzed with SolidWorks Simulation Simulation of pad_frame 2

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Model Information

Model name: pad_frame

Current Configuration: Default

Solid BodiesDocument Name and

Reference Treated As Volumetric Properties Document Path/Date Modified

Cut-Extrude4

Solid Body

Mass:0.410916 kgVolume:0.000293511

m^3Density:1400 kg/m^3

Weight:4.02698 N

F:\RIT 2013-14\Fall Semister\MSD 1\

new_MSD 1\public\CAD\NA\

pad_frame.SLDPRTDec 11 14:41:02 2013

Comments:This part was designed by Joanna Dzionara-Norsen

Analyzed with SolidWorks Simulation Simulation of pad_frame 3

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Study PropertiesStudy name single pad analysisAnalysis type StaticMesh type Solid MeshThermal Effect: OnThermal option Include temperature loadsZero strain temperature 298 KelvinInclude fluid pressure effects from SolidWorks Flow Simulation

Off

Solver type FFEPlusInplane Effect: OffSoft Spring: OffInertial Relief: OffIncompatible bonding options AutomaticLarge displacement OffCompute free body forces OnFriction OffUse Adaptive Method: OffResult folder SolidWorks document (F:\RIT 2013-14\Fall

Semister\MSD 1\new_MSD 1\public\CAD\NA)

UnitsUnit system: SI (MKS)Length/Displacement mmTemperature KelvinAngular velocity Rad/secPressure/Stress N/m^2

Analyzed with SolidWorks Simulation Simulation of pad_frame 4

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Material PropertiesModel Reference Properties Components

Name: Nylon 6/10Model type: Linear Elastic

IsotropicDefault failure

criterion:Max von Mises Stress

Yield strength: 1.39043e+008 N/m^2

Tensile strength: 1.42559e+008 N/m^2

Elastic modulus: 8.3e+009 N/m^2Poisson's ratio: 0.28

Mass density: 1400 kg/m^3Shear modulus: 3.2e+009 N/m^2

Thermal expansion

coefficient:

3e-005 /Kelvin

SolidBody 1(Cut-Extrude4)(pad_frame)

Curve Data:N/A

Analyzed with SolidWorks Simulation Simulation of pad_frame 5

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Loads and FixturesFixture name Fixture Image Fixture Details

Fixed-1

Entities: 2 face(s)Type: Fixed Geometry

Resultant ForcesComponents X Y Z Resultant

Reaction force(N) -0.00692177 1038.93 -0.037014 1038.93Reaction

Moment(N·m) 0 0 0 0

Load name Load Image Load Details

Force-1

Entities: 3 face(s)Type: Apply normal force

Value: 300 lbf

Comments:Loaded to simulate a user placing their full weight on the pad.

Analyzed with SolidWorks Simulation Simulation of pad_frame 6

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Mesh InformationMesh type Solid MeshMesher Used: Curvature based meshJacobian points 4 PointsMaximum element size 0 inMinimum element size 0 inMesh Quality High

Mesh Information - DetailsTotal Nodes 12639Total Elements 8096Maximum Aspect Ratio 4.7143% of elements with Aspect Ratio < 3 99.2% of elements with Aspect Ratio > 10 0% of distorted elements(Jacobian) 0Time to complete mesh(hh;mm;ss): 00:00:08Computer name: ME-HP38

Analyzed with SolidWorks Simulation Simulation of pad_frame 7

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Resultant ForcesReaction ForcesSelection set Units Sum X Sum Y Sum Z Resultant

Entire Model N -0.00692177 1038.93 -0.037014 1038.93

Reaction MomentsSelection set Units Sum X Sum Y Sum Z Resultant

Entire Model N·m 0 0 0 0

Analyzed with SolidWorks Simulation Simulation of pad_frame 8

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Study Results

Name Type Min MaxStress1 VON: von Mises Stress 5519.04 N/m^2

Node: 111541.32173e+007 N/m^2Node: 16

pad_frame-single pad analysis-Stress-Stress1

Name Type Min MaxDisplacement1 URES: Resultant Displacement 0 mm

Node: 10.0538978 mmNode: 782

Analyzed with SolidWorks Simulation Simulation of pad_frame 9

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Analyzed with SolidWorks Simulation Simulation of pad_frame 10

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Name Type Min MaxStrain1 ESTRN: Equivalent Strain 4.97156e-007

Element: 38420.00119181Element: 2556

pad_frame-single pad analysis-Strain-Strain1

Name TypeDisplacement1{1} Deformed Shape

Analyzed with SolidWorks Simulation Simulation of pad_frame 11

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Name Type

pad_frame-single pad analysis-Displacement-Displacement1{1}

Name Type Min MaxFactor of Safety1 Automatic 10.5198

Node: 1625193.3Node: 11154

Analyzed with SolidWorks Simulation Simulation of pad_frame 12

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Name Type Min Max

pad_frame-single pad analysis-Factor of Safety-Factor of Safety1

Analyzed with SolidWorks Simulation Simulation of pad_frame 13

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Image-1

ConclusionComments:Sucessful test shows that this part will not yield.

Analyzed with SolidWorks Simulation Simulation of pad_frame 14