Abstract: The present invention relates to means, system and method for measurement of stress strain and fatigue forecasting by the means of Integral Strain Gauges (ISGs) capable of recording information from a surface of a tested object, mathematical processor for analysis of the information recorded on the surface of such gauges. Integral Strain Gauges produced from a custom made reaction sensitive materials.

Abstract: 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.