| Domanda | Risposta | |||
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crushing forces
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change shape
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stretching forces
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subjected to tension its lenght increases
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ability to resist tension
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ability to resist compression
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can extend but still return to their original shape
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strong but has low elasticity
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breaks easily
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breaks due to tension
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can change shape but won't return to original
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by hamnering or rolling
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plastically deformed
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Can be drawn out (stretched) into a long lenght
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sample bar is subjected to a progressively increasing tensile force
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beyond this point lenght increases at a greater rate than tension
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beyond this point the bar Will no longer go back to its original lenght
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once the bar yields, it continues to increase in lenght without further increase in tension
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beyond this point a waist (a narrower section) appears at a point along the lenght of the bar signalling that its about to fracture
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where the bar breaks in two
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forces that continually vary
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bending up and down
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