Bathtub Curve of Infant Mortality, Useful Life and Wear-Out
The bathtub curve is the field's organising picture: a falling infant-mortality region created by defects, a flat region where the constant-rate model applies, and a rising wear-out region driven by physics. Each region calls for a different intervention — screening, redundancy, and life-limited replacement respectively — so the curve is what routes a reliability problem to its correct treatment.
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The bathtub curve is the field's organising picture: a falling infant-mortality region created by defects, a flat region where the constant-rate model applies, and a rising wear-out region driven by physics. Each region calls for a different intervention — screening, redundancy, and life-limited replacement respectively — so the curve is what routes a reliability problem to its correct treatment.
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