Assessing structural repair integrity
First Claim
1. A method to assess the integrity of a structural repair to a structural surface, comprising:
- securing a patch over a defect in an underlying structural surface;
verifying a bond between the patch and the underlying structural surface;
applying a strain indicator to the patch;
obtaining, in a strain measurement device, a first strain measurement from the strain indicator when the underlying structural surface is not subject to an external stress;
applying at least one stress test to the structural repair;
obtaining, in the strain measurement device, a second strain measurement from the strain indicator when the underlying structural surface is not subject to an external stress; and
generating, in the strain measurement device, a signal when a difference between the first strain measurement and the second strain measurement exceeds a threshold.
1 Assignment
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Accused Products
Abstract
A strain measurement device to assess the integrity of a structural repair to a surface comprises a detector, a processor, and a memory module coupled to the processor. The memory module comprises logic instructions stored in a computer readable medium which, when executed by the processor, configure the processor to use the detector to obtain a first strain measurement from an external strain indicator, use the detector to obtain a second strain measurement from the measurement sensor after at least one stress test is applied to the structural repair, and generate a signal when a difference between the first strain measurement and the second strain measurement exceeds a threshold.
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Citations
21 Claims
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1. A method to assess the integrity of a structural repair to a structural surface, comprising:
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securing a patch over a defect in an underlying structural surface; verifying a bond between the patch and the underlying structural surface; applying a strain indicator to the patch; obtaining, in a strain measurement device, a first strain measurement from the strain indicator when the underlying structural surface is not subject to an external stress; applying at least one stress test to the structural repair; obtaining, in the strain measurement device, a second strain measurement from the strain indicator when the underlying structural surface is not subject to an external stress; and generating, in the strain measurement device, a signal when a difference between the first strain measurement and the second strain measurement exceeds a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A strain measurement device to assess the integrity of a structural repair to a structural surface, comprising:
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a detector; a processor; and a memory module coupled to the processor and comprising logic instructions stored in a computer readable medium which, when executed by the processor, configure the processor to; use the detector to obtain a first strain measurement from an external strain indicator connected to a patch over a defect in an underlying structural surface when the underlying structural surface is not subject to an external stress; use the detector to obtain a second strain measurement from the measurement sensor after at least one stress test is applied to the structural repair when the underlying structural surface is not subject to an external stress; and generate a signal when a difference between the first strain measurement and the second strain measurement exceeds a threshold. - View Dependent Claims (10, 11, 12, 13, 15)
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14. A computer program product to assess the integrity of a structural repair to a surface comprising logic instructions stored in a computer readable medium which, when executed by a processor, configure the processor to:
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receive a first strain measurement from an external strain indicator connected to a patch over a defect in an underlying structural surface when the underlying structural surface is not subject to an external stress; receive a second strain measurement from the measurement sensor after at least one stress test is applied to the structural repair when the underlying structural surface is not subject to an external stress; and generate a signal when a difference between the first strain measurement and the second strain measurement exceeds a threshold. - View Dependent Claims (16, 17)
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18. A system to assess the integrity of a structural repair to a surface, comprising:
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a strain indicator which may be applied proximate the structural repair; a detector to obtain a first strain measurement from an external strain indicator connected to a patch over a defect in an underlying structural surface when the underlying structural surface is not subject to an external stress and a second strain measurement from the measurement sensor after at least one stress test is applied to the structural repair when the underlying structural surface is not subject to an external stress; a memory module to store the first strain measurement and the second strain measurement; and an evaluation module to generate a signal when a difference between the first strain measurement and the second strain measurement exceeds a threshold. - View Dependent Claims (19, 20, 21)
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Specification