Difference between revisions of "Monocoque"
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| − | A monocoque is a fully enclosed structural chassis where the loads are supported by the skin. This could be done by either folding a sheet material (such as aluminum sandwich or sheet metal) or manufacturing components with molding a material (such as [[Carbon Fiber Reinforced Polymer|CFRP]] or [[Glass Fiber Reinforced Polymer|GFRP]]).Generally this design is seen as more challenging compared to a tube frame, but can have considerable performance benefits if done properly. | + | A monocoque is a fully enclosed structural chassis where the loads are supported by the skin. This could be done by either folding a sheet material (such as aluminum sandwich or sheet metal) or manufacturing components with molding a [[composite| composite material]] (such as [[Carbon Fiber Reinforced Polymer|CFRP]] or [[Glass Fiber Reinforced Polymer|GFRP]]).Generally this design is seen as more challenging compared to a tube frame, but can have considerable performance and manufacturing benefits if done properly. |
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A monocoque chassis should be worked towards in increments and is not recommended to have as a chassis without proper validation or manufacturing resources. A general practice is to start with a tube frame design which meets FSAE rules and design requirements of the team, and then to add shear panels for the body. Once a team as proper experience and understanding of the chassis, they can attempt a monocoque. | A monocoque chassis should be worked towards in increments and is not recommended to have as a chassis without proper validation or manufacturing resources. A general practice is to start with a tube frame design which meets FSAE rules and design requirements of the team, and then to add shear panels for the body. Once a team as proper experience and understanding of the chassis, they can attempt a monocoque. | ||
| − | =Design= | + | ==Design== |
| − | =Manufacturing | + | ==Manufacturing== |
Separate page on Composite manufacturing | Separate page on Composite manufacturing | ||
| − | =Analysis= | + | ==Analysis== |
| − | + | ===Longitudinal Torsion=== | |
Consider the monocoque as a cylinder with with cutouts. | Consider the monocoque as a cylinder with with cutouts. | ||
[[File:Longitudinal Torsion.PNG|250px|right|middle|thumb|Simpilifed Longitudinal Torsion Model]] | [[File:Longitudinal Torsion.PNG|250px|right|middle|thumb|Simpilifed Longitudinal Torsion Model]] | ||
| − | + | ===Vertical Bending=== | |
| − | |||
[[File:Vertical Bending.PNG|250px|right|middle|thumb|Simplified Vertical Bending Model]] | [[File:Vertical Bending.PNG|250px|right|middle|thumb|Simplified Vertical Bending Model]] | ||
Latest revision as of 10:15, 30 March 2022
A monocoque is a fully enclosed structural chassis where the loads are supported by the skin. This could be done by either folding a sheet material (such as aluminum sandwich or sheet metal) or manufacturing components with molding a composite material (such as CFRP or GFRP).Generally this design is seen as more challenging compared to a tube frame, but can have considerable performance and manufacturing benefits if done properly.
A monocoque chassis should be worked towards in increments and is not recommended to have as a chassis without proper validation or manufacturing resources. A general practice is to start with a tube frame design which meets FSAE rules and design requirements of the team, and then to add shear panels for the body. Once a team as proper experience and understanding of the chassis, they can attempt a monocoque.
Contents
Design
Manufacturing
Separate page on Composite manufacturing
Analysis
Longitudinal Torsion
Consider the monocoque as a cylinder with with cutouts.
Vertical Bending
Lateral Bending
Localized Bending
Fatigue
Need to add reference for images: Design, Analysis and Testing of a Formula SAE Car Chassis, William B. Riley and Albert R. George
Simulation
Throw it in ansys acp. Hit send
