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    • 7. 发明申请
    • METHOD OF FORECASTING THE LIFETIME OF STRUCTURAL PARTS
    • 预测结构部件寿命的方法
    • WO2008061337A1
    • 2008-05-29
    • PCT/CA2007/001893
    • 2007-10-24
    • ISG PREVENTIVE TECHNOLOGY INC.OUDOVIKINE, Alexandre
    • OUDOVIKINE, Alexandre
    • G01N3/32
    • G01B11/16G01N3/32
    • A method is provided for determining the extent of cyclic stress fatigue suffered by a component comprising the steps of: (i) obtaining a gauge material which undergoes a continued progressive/cumulative and quantifiable change in at least one of its physical properties in response to repeated strain cycles applied to the gauge material, the quantifiable change being indicative of both degree of strain and number of cycles incurred during the repeated strain cycles; (ii) determining a correlation between an extent of the quantifiable change in the gauge material and an effect on said component of a corresponding number and degree of strain cycles; (iii) affixing the gauge material to said component to subject the gauge material to any strain encountered by an adjacent portion of the component; (iv) at least periodically determining the extent of said quantifiable change to the gauge material to determine the extent of cyclic stress fatigue undergone by the component.
    • 提供了一种用于确定部件所遭受的循环应力疲劳的程度的方法,包括以下步骤:(i)获得规格材料,其响应于重复的至少一个物理性能而进行连续的逐次/累积和可量化的变化 应变周期应用于规格材料,可量化变化表示在重复应变周期期间产生的应变程度和循环次数; (ii)确定规格材料的可量化变化的程度与相应数量和应变周期程度对所述部件的影响之间的相关性; (iii)将规格材料固定到所述部件上以使所述规格材料受到由所述部件的相邻部分遇到的任何应变; (iv)至少周期性地确定所述量规材料的所述可量化变化的程度以确定部件所经历的循环应力疲劳的程度。