BS ISO 1099:2017规定了进行轴向、恒定振幅、力控制、， 在没有故意引入应力的情况下，在环境温度下对金属试样进行疲劳试验 浓度。使用本文件进行测试的目的是提供疲劳信息， 例如，给定材料的外加应力和失效循环次数之间的关系 在不同应力比下的状态，如硬度和微观结构。而圆形和矩形截面试样的形状、制备和试验 如前所述，本文件不包括组件测试和其他特殊形式的测试。注1:由于缺口试样的形状和尺寸 缺口试件尚未标准化。然而，本文件中描述的疲劳试验程序 可用于此类缺口试样的疲劳试验。 注2:在本文件中，采用了工程应力。工程应力定义为 轴向施加的力与试样横截面积的商，S=试验时的力/面积 温度交叉引用:ISO 7500-1:2015ISO 23788:2012 ED1ISO 4965-1:2012 ED1 ISO 554:1976ISO 5459:2011 Ed 2ISO 4287:1997ISO 4288:1996ISO 4965-2:2012 ED1购买本文件时提供的所有现行修订均包含在购买本文件中。

BS ISO 1099:2017 specifies the conditions for conducting axial, constant-amplitude, force-controlled, fatigue tests at ambient temperature on metallic specimens, without deliberately introduced stress concentrations. The object of testing while employing this document is to provide fatigue information, such as the relation between applied stress and number of cycles to failure for a given material condition, such as hardness and microstructure, at various stress ratios.While the form, preparation and testing of specimens of circular and rectangular cross-section are described, component testing and other specialized forms of testing are not included in this document.NOTE 1 Fatigue tests on notched specimens are not covered by this document since the shape and size of notched test pieces have not been standardized. However, fatigue-test procedures described in this document can be applied to fatigue tests of such notched specimens.NOTE 2 Throughout this document, the engineering stress is employed. Engineering stress is defined as the quotient of the axially applied force to the cross-sectional area of the test specimen, S = Force/Area, at the test temperature.Cross References:ISO 7500-1:2015ISO 23788:2012 ED1ISO 4965-1:2012 ED1 ISO 554:1976ISO 5459:2011 Ed 2ISO 4287:1997ISO 4288:1996ISO 4965-2:2012 ED1All current amendments available at time of purchase are included with the purchase of this document.