s—n curve

s—n curve
S—N кривая.
Диаграмма напряжения (S) против числа циклов до разрушения (N). Напряжение может быть максимальным (Sмакс) или с переменной амплитудой (Sa). Приводится обычно номинальное напряжение, т. е. без какой-либо корректировки по отношению к концентрации напряжений. Для N почти всегда используется логарифмическая шкала. Для S используется наиболее часто линейный масштаб, но иногда также используется логарифмическая шкала. Также известна как S—N диаграмма.

Англо-русский словарь терминов металлургии и сварки. 2011.

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