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Stress-strain relationship plots applied stress vs. resulting strain; reveals elastic, yield, and ultimate strength regions.
Trin-for-trin guide
- 1Input stress-strain data points
- 2Calculate properties: elastic limit, yield stress, ultimate stress, fracture stress
- 3Plot diagram showing material behavior
Løste eksempler
Input
Mild steel: linear elastic region until ~250 MPa, plastic region, ultimate ~450 MPa
Resultat
Ductile material with clear yield point
Almindelige fejl at undgå
- ✕Confusing engineering vs. true stress/strain
- ✕Not accounting for strain rate effects
Ofte stillede spørgsmål
What's difference between yield and ultimate strength?
Yield: permanent deformation begins, Ultimate: maximum stress before necking.
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