Under working loads, the distribution of moments in astatically indeterminate structure is based on elastic theory and the whole structure remains in the elastic range.

依据工作负荷，在一个时辰的超静定构造散布，弹性理论和整个构造的根底依然在弹性规模内。

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Although basing on the theory of elastic stability, these formulas agree well with test results in inelastic range as well.

这些公式虽然由弹性稳定理论导出，和非弹性范围内的试验结果也吻合较好。

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The elastic range, the plastic range (during which the material flows at a constant stress), the strain-hardening range, and the range during which necking occurs, terminating in fracture.

弹性范围，塑料范围（当材料以不变的应力流动时），应变硬化范围和发生颈缩现象以其断裂终止的范围。

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