Mechanical Testing (Destructive Testing) (Leaving Cert Engineering): Flashcards
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12 cards from this deck
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Practise the cards
12 cards from this deck
Mechanical testing definition
Mechanical testing definition
Process of applying loads to materials until breaking point
Purpose of mechanical testing
Purpose of mechanical testing
Determine exact limits materials can withstand
Nature of mechanical testing (destructive/non-destructive)
Nature of mechanical testing (destructive/non-destructive)
Destructive - deliberately destroys material samples
Material strength from mechanical testing
Material strength from mechanical testing
How much force the material can handle
Failure patterns from mechanical testing
Failure patterns from mechanical testing
How and where the material breaks
Load limits from mechanical testing
Load limits from mechanical testing
Maximum stress before destruction occurs
X-ray testing purpose
X-ray testing purpose
Examine internal structure without initially destroying material
How X-ray testing reveals flaws
How X-ray testing reveals flaws
Radiation creates shadows on film showing internal defects
Aeronautical industry material challenge
Aeronautical industry material challenge
Balance weight against strength
Factor of Safety definition
Factor of Safety definition
Designing components stronger than minimum requirements
Factor of Safety: component twice as strong
Factor of Safety: component twice as strong
Factor of 2
Consequences of inappropriate material selection
Consequences of inappropriate material selection
Catastrophic failure, safety hazards, financial loss, loss of life