Difference between revisions of "R3DC Report 2-08"
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| Line 8: | Line 8: | ||
=Endplate Deflection= | =Endplate Deflection= | ||
==Point Load Deflection== | ==Point Load Deflection== | ||
| − | A simple calculation based on the definition of Young's modulus can yield and order of magnitude level estimate for the deflection an endplate made from polyeurethane. According to the | + | A simple calculation based on the definition of Young's modulus can yield and order of magnitude level estimate for the deflection an endplate made from polyeurethane. According to the definition of Young's modulus |
:<math>Y \equiv \frac{F}{4wy} \left( \frac{l}{t}\right )^3</math> | :<math>Y \equiv \frac{F}{4wy} \left( \frac{l}{t}\right )^3</math> | ||
| Line 21: | Line 21: | ||
:<math>t = 0.051 m \equiv</math> thickness of the endplate | :<math>t = 0.051 m \equiv</math> thickness of the endplate | ||
| + | A deflection of x mm results after solving the equation for y and inserting the above values. | ||
[[Image:2-D.jpg | 400 px]] | [[Image:2-D.jpg | 400 px]] | ||
Revision as of 16:14, 7 February 2008
Introduction
R3 Description
Geometry
Material Specifications
Specific part Drawings
Endplate Deflection
Point Load Deflection
A simple calculation based on the definition of Young's modulus can yield and order of magnitude level estimate for the deflection an endplate made from polyeurethane. According to the definition of Young's modulus
where
- Young's Modulus of Elasticity
- point force/load
- width of the endplate
- deflection of endplate due to point force
- length of the endplate
- thickness of the endplate
A deflection of x mm results after solving the equation for y and inserting the above values.
| Material | Youngs Modulus | Density |
| MPa | ||
| Polyeurethane Foam FR-3700 | 140 | 240 |
| Hexacell with holes | ||
| Carbon Fiber Rods | 210 | 580 |
Distributed Load Deflection
Distributed load FEA
Carbon Rod Buckling
Compression
Buckling Load Threshold
Buckling FEA
=3-D Analysis