Analyzed with SolidWorks Simulation Simulation of Slingshot 1

Simulation of Slingshot Date: Friday, December 02, 2011 Designer: Michael Snively Study name: SimulationXpress Study Analysis type: Static

Table of Contents Description ............................................ 1

Model Information ................................... 2

Material Properties .................................. 3

Loads and Fixtures................................... 4

Mesh Information .................................... 5

Study Results ......................................... 7

Conclusion .......................................... 10

Description Slingshot design for Christmas 2011 as a gift for Devon Decembre.

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 2

Model Information

Model name: Slingshot

Current Configuration: Default

Solid Bodies

Document Name and Reference

Treated As Volumetric Properties Document Path/Date

Modified

Mirror1

Solid Body

Mass:0.141034 kg Volume:5.22349e-005 m^3

Density:2700 kg/m^3 Weight:1.38214 N

C:\Users\Snively\Documents\My

Dropbox\Slingshot.SLDPRT

Dec 02 17:29:36 2011

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 3

Material Properties

Model Reference Properties Components

Name: 6061-T6 (SS) Model type: Linear Elastic Isotropic

Default failure criterion:

Unknown

Yield strength: 2.75e+008 N/m^2 Tensile strength: 3.1e+008 N/m^2

SolidBody 1(Mirror1)(Slingshot)

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 4

Loads and Fixtures

Fixture name Fixture Image Fixture Details

Fixed-1

Entities: 2 face(s) Type: Fixed Geometry

Fixed-2

Entities: 6 face(s) Type: Fixed Geometry

Load name Load Image Load Details

Force-1

Entities: 2 face(s), 1 plane(s) Reference: Front Plane

Type: Apply force Values: ---, ---, 72 N

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 5

Mesh Information Mesh type Solid Mesh

Mesher Used: Standard mesh

Automatic Transition: Off

Include Mesh Auto Loops: Off

Jacobian points 4 Points

Element Size 0.147219 in

Tolerance 0.00736093 in

Mesh Quality High

Mesh Information - Details

Total Nodes 20022

Total Elements 11138

Maximum Aspect Ratio 13.833

% of elements with Aspect Ratio < 3 95.2

% of elements with Aspect Ratio > 10 0.108

% of distorted elements(Jacobian) 0

Time to complete mesh(hh;mm;ss): 00:00:06

Computer name: SNIVELY-PC

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 6

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 7

Study Results

Name Type Min Max

Stress VON: von Mises Stress 4.11485e-007 N/m^2 Node: 1755

1.17615e+008 N/m^2 Node: 16166

Slingshot-SimulationXpress Study-Stress-Stress

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 8

Name Type Min Max

Displacement URES: Resultant Displacement 0 mm Node: 105

0.315064 mm Node: 470

Slingshot-SimulationXpress Study-Displacement-Displacement

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 9

Name Type

Deformation Deformed Shape

Slingshot-SimulationXpress Study-Displacement-Deformation

Michael Snively

12/2/2011

Analyzed with SolidWorks Simulation Simulation of Slingshot 10

Name Type Min Max

Factor of Safety Max von Mises Stress 2.33815 Node: 16166

6.68312e+014 Node: 1755

Slingshot-SimulationXpress Study-Factor of Safety-Factor of Safety

Conclusion Slingshot deemed safe for use. Minimal stress and deformation should give the effect of both a solid and

lightweight slingshot.