Tension (Tensile Force) (Leaving Cert Engineering): Flashcards
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Tensile force definition
Tensile force definition
Force that pulls/stretches material apart in opposite directions
How tensile forces act on materials
How tensile forces act on materials
Pull from opposite ends to stretch it
Steel's tensile strength rating
Steel's tensile strength rating
Excellent resistance to tensile forces
Concrete's tensile strength rating
Concrete's tensile strength rating
Very poor, fractures easily
Why steel for load-bearing cables?
Why steel for load-bearing cables?
Excellent tensile strength for heavy loads
Why avoid concrete alone in tension?
Why avoid concrete alone in tension?
Poor tensile strength, fractures easily
When materials fail under tension
When materials fail under tension
When forces exceed material's capacity
Purpose of safety margins in design
Purpose of safety margins in design
Prevent failure under unexpected loads
Key challenge in material selection
Key challenge in material selection
Matching properties to forces/conditions
Effect of tensile forces on materials
Effect of tensile forces on materials
Materials are stretched
Why concrete fractures under tension
Why concrete fractures under tension
Structure vulnerable to cracking when stretched
Material selection principle
Material selection principle
Match to expected force types in application