A method for evaluating the integrity of a structural repair on a structural surface (110), comprising the following steps, taken in order: securing a patch (120) above a defect (112) on an underlying structural surface to form the repair; verify the integrity of a joint between the patch and the underlying structural surface; apply a deformation indicator (130) to the patch; obtaining, in a deformation measuring device (150), a first deformation measurement from the deformation indicator (130), said deformation measuring device being a handheld device, such as an electronic handheld device, a telephone mobile or a digital personal assistant; apply at least one stress test to the structural repair (120); obtaining, in the deformation measuring device (150), a second strain measurement from the deformation indicator (130) after the at least one stress test has been completed when the underlying structural surface is not subjected to an effort external; and generating, in the deformation measuring device (150), a signal when a difference between the first strain measurement and the second strain measurement exceeds a threshold.
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