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Which outcome occurs when stress fractures disrupt crystalline lattice?

A)Acoustic emission source localization fails
B)Hardness measurement becomes unreliable
C)Fatigue life prediction is improved
D)Stress concentration decreases drastically.

💡 Explanation

Acoustic emission source localization fails because stress fractures cause random acoustic signals; these interfere with locating the source of true material defects using triangulation. Therefore acoustic emission fails, rather than succeeding, because predictable lattices are necessary.

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