Non-destructive optical method for determining minimum bond strength and proving bond efficacy
First Claim
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1. A method for determining a strain, comprising:
- bonding first and second components together using a bonding agent;
heating the first component and the bonding agent to a predetermined temperature from about 105°
C. to about 125°
C. for a predetermined duration from about 80 minutes to about 100 minutes; and
measuring a strain in the first component using a strain measurement tool as the first component cools, wherein the strain measurement tool is configured to detect movement of the first component as the first component cools.
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Abstract
A method for determining a strain includes bonding first and second components together, at an elevated temperature, using a bonding agent. A strain is then measured in the first component using a strain measurement tool as the first component cools from the elevated temperature. The strain measurement tool is configured to detect movement the first component as the first component cools.
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Citations
20 Claims
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1. A method for determining a strain, comprising:
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bonding first and second components together using a bonding agent; heating the first component and the bonding agent to a predetermined temperature from about 105°
C. to about 125°
C. for a predetermined duration from about 80 minutes to about 100 minutes; andmeasuring a strain in the first component using a strain measurement tool as the first component cools, wherein the strain measurement tool is configured to detect movement of the first component as the first component cools. - View Dependent Claims (2, 3, 4, 5, 20)
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6. A method for determining a strain, comprising:
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applying a visual indicator material to a first component; applying a bonding agent to the first component; pressing the first component and a second component together with the bonding agent positioned at least partially therebetween; heating the first component and the bonding agent to a predetermined temperature from about 105°
C. to about 125°
C. for a predetermined duration from about 80 minutes to about 100 minutes;cooling the first component and the bonding agent; and measuring a strain in the first component using a strain measurement tool, wherein the strain measurement tool is configured to detect movement of the visual indicator material on the first component as the first component cools. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method for determining a strain, comprising:
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applying a visual indicator material to a first component and a second component, wherein the first and second components have different coefficients of thermal expansion; applying a bonding agent to the first component, the second component, or both; pressing the first component and the second component together with the bonding agent positioned at least partially therebetween; heating the first component, the second component, and the bonding agent to a predetermined temperature from about 30°
C. to about 60°
C. for a predetermined duration from about 125 minutes to about 150 minutes;cooling the first component, the second component, and the bonding agent after heating the first component, the second component, and the bonding agent; and measuring a strain in the first component, the second component, or both using a strain measurement tool without applying external forces to the first component and the second component, wherein the strain measurement tool detects movement of particles in the visual indicator material as the first component, the second component, or both deform in response to the cooling. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification