Battery Plate Explosive Study

Author: Geoffrey Burke

Company: 3RD

Date: March 4, 2004

  1. Introduction
  2. File Information
  3. Materials
  4. Load Information
  5. Study Property
  6. Stress Results
  7. Deformation Results
  8. Design Check Results
  9. Conclusion
  10. Appendix

Flashlight Assembly Battery Plate explosive animation Study


1. Introduction



18 Volt Battery Explosive Study - Effects on all parts


2. File Information



Flashlight Assembly Model eDrawing : Flashlight Assembly
Model Batteryplate
Deformation Model eDrawing Battery Plate Deformation
FOS Model eDrawing Battery Plate Failure Analaysis
Stress Study dDrawing COSMOSXpressStudy

eDrawing Plugin



3. Materials



No. Part Name Material Mass Volume
1 Batteryplate Acrylic (Medium-high impact) 0.0359393 kg 2.99494e-005 m^3



4. Load Information



Restraint
Restraint1 <Batteryplate> on 1 Face(s) immovable (no translation).
Description:

Load
Load1 <Batteryplate> on 1 Face(s) with Pressure 500 psi along direction normal to selected face
Description:

5. Study Property

Mesh Information
Mesh Type Solid mesh
Mesher Used: Standard
Automatic Transition: Off
Include Mesh Controls: Off
Smooth Surface: On
Jacobian Check: 4 Points
Element Size: 3.1066 mm
Tolerance: 0.15533 mm
Quality: High
Number of elements: 11559
Number of nodes: 19945



Solver Information
Quality: High
Solver Type: FFE


6. Stress Results



Name Type Min Location Max Location
Plot1 VON: von Mises stress
28657.1 N/m^2
(0.0424206 m,
0.0140117 m,
-0.00996 m)
2.72962e+008 N/m^2
(-0.0165917 m,
0.00506739 m,
0.00488212 m)



Batteryplate-COSMOSXpressStudy-Stress-Plot1
JPEG
VIEW


7. Deformation Results



Plot No. Scale Factor
1 1.0653



Batteryplate-COSMOSXpressStudy-Deformation-Plot2
JPEG
VIEW

8. Design Check Results



Batteryplate-COSMOSXpressStudy-Design Check-Plot3
JPEG
VIEW


9. Conclusion



Part is destroyed with out fragmentation


10. Appendix

Material name: Acrylic (Medium-high impact)
Description:
Material Source Library files
Material Library Name Coswkmat.Lib
Material Model Type Linear Elastic Isotropic
Unit system: SI

Property Name Value
Elastic modulus 2.4e+009 N/m^2
Poisson's ratio 0.35
Yield strength 2.0681e+008 N/m^2
Mass density 1200 kg/m^3

Note:

COSMOSXpress design analysis results are based on linear static analysis and the material is assumed isotropic. Linear static analysis assumes that: 1) the material behavior is linear complying with Hooke’s law, 2) induced displacements are adequately small to ignore changes in stiffness due to loading, and 3) loads are applied slowly in order to ignore dynamic effects.

Do not base your design decisions solely on the data presented in this report. Use this information in conjunction with experimental data and practical experience. Field testing is mandatory to validate your final design. COSMOSXpress helps you reduce your time-to-market by reducing but not eliminating field tests.