方法对比
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| 高度加速寿命试验 (HALT)× | 一阶可靠性方法 (FORM)× | |
|---|---|---|
| 领域 | 可靠性工程 | 可靠性工程 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1990s | 1969 |
| 提出者≠ | William Leis and others | Allin Cornell |
| 类型≠ | Product reliability testing methodology | Reliability analysis method |
| 开创性文献≠ | Leis, B. N., & Stephens, D. R. (2011). Reliability methodologies for structural integrity assessment. Journal of Pressure Vessel Technology, 133(5), 051204. link ↗ | Cornell, C. A. (1969). A probability-based structural code. Journal of the American Concrete Institute, 66(12), 974-985. DOI ↗ |
| 别名≠ | HALT, Accelerated stress testing, HASS | FORM, First-order second-moment method |
| 相关 | 4 | 4 |
| 摘要≠ | Highly Accelerated Life Testing (HALT) is a methodology for rapidly identifying design weaknesses and determining the margin between normal operating conditions and product failure. By applying extreme but non-destructive stress profiles (thermal, vibration, etc.), HALT accelerates the failure clock to reveal latent defects in weeks rather than years. Developed intensively from the 1980s onward and refined by practitioners in electronics and mechanical systems, HALT has become essential in accelerated product development and reliability validation. | The First-Order Reliability Method (FORM) is a probabilistic technique for estimating the probability of structural failure given uncertain input parameters. Developed by Allin Cornell in 1969 and refined by Hasofer and Lind in 1974, FORM provides a computationally efficient approximation to the true failure probability by linearizing the limit-state function at the most probable failure point. It has become the cornerstone of modern structural reliability analysis and risk-based design. |
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