方法对比
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| 有限元分析× | 屈服线理论× | |
|---|---|---|
| 领域≠ | 材料科学 | 土木工程 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1943 | 1943 (doctoral thesis, Danish); 1962 (English translation) |
| 提出者≠ | Richard Courant | K. W. Johansen |
| 类型≠ | Computational method | Structural analysis method (plasticity-based) |
| 开创性文献≠ | Zienkiewicz, O. C., & Taylor, R. L. (1977). The Finite Element Method in Engineering Science. McGraw-Hill. link ↗ | Johansen, K. W. (1962). Yield-Line Theory. Cement and Concrete Association, London. link ↗ |
| 别名≠ | FEA, finite element method | yield-line analysis, yield-line method, Johansen yield-line method, plastic slab analysis |
| 相关≠ | 4 | 1 |
| 摘要≠ | Finite Element Analysis (FEA) is a numerical technique for obtaining approximate solutions to boundary value problems described by differential equations. Developed systematically by Richard Courant in 1943 and popularized by Clough in the 1960s, FEA divides a complex domain into smaller, simpler elements to solve engineering problems involving stress, strain, heat transfer, and fluid flow. It is the dominant computational method in materials science for predicting material behavior under various loading conditions. | Yield Line Theory is a plastic limit-analysis method used in structural civil engineering to determine the ultimate load-carrying capacity of reinforced concrete slabs. Developed by K. W. Johansen in the 1940s, it assumes that at failure the slab subdivides into rigid regions separated by lines of intense plastic rotation — called yield lines — where the reinforcement has fully yielded. The approach gives the collapse load directly and is widely used in slab design and assessment. |
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