2 lecture 4 - Failure Predictors and Safety Factors - slide

E loads that would cause failure todays lecture

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Unformatted text preview: actual LOADS • specify likely mode(s) of FAILURE, and hence • predict STRENGTH (i.e. loads that would cause failure) Today's lecture: "specify likely mode(s) of FAILURE” Mechanical Design “Design for structural integrity” Relevant issues in design for structural integrity: • Load • Material • Environment • Geometry • Stability (e.g. sensitivity to small changes in geometry or load) • Duty Life • Failure Mode Mechanical Design “Design for structural integrity” Failure Modes examples: FRACTURE • static loading brittle or ductile failure • dynamic loading • impact loading • stress corrosion • creep EXCESSIVE DEFLECTION • elastic (linear) • plastic (non-linear) INSTABILITY • wear • surface damage Mechanical Design “Design for structural integrity” Failure modes – example #1: BICYCLE WHEEL Question: How can it fail? Mechanical Design “Design for structural integrity” Failure modes – example #1: BICYCLE WHEEL Question: How can it fail? Mechanical Design “Design for structural integrity” Failure modes – example #2:...
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This note was uploaded on 04/09/2012 for the course MECHANICAL 101 taught by Professor Kent during the Three '11 term at University of Melbourne.

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