General Studies · Stress-Strain Behavior
The engineering stress-strain curve for ductile materials exhibits a peak at the ultimate tensile strength because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1the elastic modulus decreases abruptly
- 2strain softening dominates over strain hardening across the entire sample
- 3the material starts weakening rapidly at the microstructural level
- 4necking begins to occur, causing engineering stress to become less than true stress✓
Correct answer
necking begins to occur, causing engineering stress to become less than true stress
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