Ch17b - University of Delaware Center for Composite...

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Center for Composite Materials University of Delaware [email protected] 302-831-6768 DESIGN/ENGINEERING with COMPOSITES Stephen M. Andersen, P.E. 00000 University of Delaware Center for Composite Materials
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 OVERVIEW Design Perspective & Concurrent Engineering Design Tools Structural Process Tools/Systems/Optimization Other Considerations Damage/Impact Creep Fatigue Wear Application
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Why Fiber Reinforced Composites?
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Composite Advantages Cost Advantages Raw Material Cost Design Cost Fabrication Cost Assembly Cost Operating Cost Maintenance Cost Salvage Cost Moderate None Layup V Low V High Scrap V Low V High Machining High High Raw Material Gr/Epoxy Titanium Cost $200 Fighters $15,000 Space Shuttle $10,000 Sync Satellites $1,000 Near-orbit Sats $500 SST $400 Commercial A/C $200 A/C Engines $50 Rotorcraft $25 Small Civil Cost/lb Application
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Composite Advantages Response to environment Corrosion resistance Capable of low (zero) CTE Cyclic load resistance Inherent nature Elastic couplings Directional nature
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Composite Disadvantages Cost Relatively large scatter Temperature degradation Complexity Unknowns Unknown – unknowns
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Concurrent Engineering Combine Design Analysis Materials Process Work Concurrently – Parallel Effort Critical to Composites
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Why? Process selection is dependent on materials and design/geometry (architecture) Material selection is dependent on process, and design requirements Design is dependent on material properties achievable, and process constraints
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Center for Composite Materials University of Delaware [email protected] 302-831-6768
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Center for Composite Materials University of Delaware [email protected] 302-831-6768
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Center for Composite Materials University of Delaware [email protected] 302-831-6768
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Center for Composite Materials University of Delaware [email protected] 302-831-6768
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Center for Composite Materials University of Delaware [email protected] 302-831-6768
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Requirements Definition Design criteria are critical Must create a specification/table up front which defines critical design data and goals Identify items which are critical to design, architecture, material, and process selection Errors in this stage can force COMPLETE re-design mid-stream or at end of process!!!!
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Center for Composite Materials University of Delaware [email protected] 302-831-6768 Methodology/Considerations
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Ch17b - University of Delaware Center for Composite...

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