In a particular system for monitoring of a composite workpiece, at least one ultrasonic testing transducer is mounted to a surface of the composite workpiece and configured to transmit and receive ultrasonic energy to and from the composite workpiece during mechanical loading of the composite workpi
In a particular system for monitoring of a composite workpiece, at least one ultrasonic testing transducer is mounted to a surface of the composite workpiece and configured to transmit and receive ultrasonic energy to and from the composite workpiece during mechanical loading of the composite workpiece. An ultrasonic pulser/receiver is operatively coupled to the at least one ultrasonic testing transducer. A computing system is operatively coupled to the ultrasonic pulser/receiver. The computing system includes a data acquisition component configured to acquire data from the ultrasonic puller/receiver and a data analysis component configured to analyze the acquired data. The data analysis component may be further configured to analyze the acquired data for initiation of failure of the composite workpiece and/or growth of failure of the composite workpiece. Further, failure of the composite workpiece may include cracking and/or delaminating and/or disbonding.
대표청구항▼
1. A system for testing a composite workpiece, the system comprising: at least one ultrasonic testing transducer configured to be mounted to a surface of a composite workpiece and configured to transmit ultrasonic energy to the composite workpiece and to receive reflected ultrasonic energy from the
1. A system for testing a composite workpiece, the system comprising: at least one ultrasonic testing transducer configured to be mounted to a surface of a composite workpiece and configured to transmit ultrasonic energy to the composite workpiece and to receive reflected ultrasonic energy from the composite workpiece as the composite workpiece is subjected to mechanical loading wherein the mechanical loading subjects the composite workpiece to a plurality of fatigue cycles;an ultrasonic pulser and receiver operatively coupled to the at least one ultrasonic testing transducer; anda computing system operatively coupled to the ultrasonic pulser and receiver, the computing system including: a data acquisition component configured to acquire data from the ultrasonic pulser and receiver; anda data analysis component configured to: analyze the acquired data to identify a change in the reflected ultrasonic energy in response to an increasing number of the plurality of fatigue cycles, wherein the change in the reflected ultrasonic energy indicates at least one potential failure condition of the composite workpiece; andtrack a change in size of the at least one potential failure condition of the composite workpiece as a number of fatigue cycles increases. 2. The system of claim 1, further comprising a multiplexer operatively coupled between the ultrasonic pulser and receiver and the at least one ultrasonic testing transducer. 3. The system of claim 1, wherein the at least one ultrasonic testing transducer includes an ultrasonic testing transducer chosen from a pulse echo ultrasonic testing transducer and a pair of through transmission ultrasonic testing transducers. 4. The system of claim 1, wherein the data analysis component is further configured to analyze the acquired data to identify at least one condition chosen from initiation of a failure of the composite workpiece and growth of the failure of the composite workpiece. 5. The system of claim 4, wherein the failure of the composite workpiece includes at least one failure mechanism chosen from cracking, delaminating, and disbonding. 6. The system of claim 1, wherein the at least one ultrasonic testing transducer includes a plurality of ultrasonic testing transducers configured to be mounted to the surface of the composite workpiece in an array. 7. A system for testing a composite workpiece, the system comprising: a mechanical test system and controller configured to subject a composite workpiece to mechanical loading, wherein the mechanical loading subjects the composite workpiece to a plurality of fatigue cycles;at least one ultrasonic testing transducer configured to be mounted to a surface of the composite workpiece and configured to transmit ultrasonic energy to the composite workpiece and to receive reflected ultrasonic energy from the composite workpiece during mechanical loading of the composite workpiece;an ultrasonic pulser and receiver operatively coupled to the at least one ultrasonic testing transducer; anda computing system operatively coupled to the mechanical test system and controller and to the ultrasonic pulser and receiver, the computing system including: a data acquisition component configured to acquire data from the ultrasonic pulser and receiver; anda data analysis component configured to: analyze the acquired data to identify a change in the reflected ultrasonic energy in response to an increasing number of the plurality of fatigue cycles, wherein the change in the reflected ultrasonic energy indicates at least one potential failure condition of the composite workpiece; andtrack a change in size of the at least one potential failure condition of the composite workpiece as a number of fatigue cycles increases. 8. The system of claim 7, wherein the at least one ultrasonic testing transducer includes an ultrasonic testing transducer chosen from a pulse echo ultrasonic testing transducer and a pair of through transmission ultrasonic testing transducers. 9. The system of claim 7, wherein the at least one potential failure condition of the composite workpiece corresponds to a failure of the composite workpiece associated with at least one of cracking, delaminating, and disbanding. 10. The system of claim 7, wherein the computing system further includes a control component that is configured to automatically cause the mechanical test system and controller to stop causing the composite workpiece to be placed under the mechanical load responsive to detection by the data analysis component of initiation of a failure of the composite workpiece. 11. The system of claim 7, wherein the at least one ultrasonic testing transducer includes a plurality of ultrasonic testing transducers that are configured to be mounted to the surface of the composite workpiece and arranged in an array. 12. A method for testing a composite workpiece, the method comprising: subjecting a composite workpiece to mechanical loading, wherein the mechanical loading subjects the composite workpiece to a plurality of fatigue cycles;ultrasonically testing the composite workpiece using at least one ultrasonic testing transducer mounted to a surface of the composite workpiece by transmitting ultrasonic energy to the composite workpiece;acquiring data indicative of ultrasonic energy reflected by the composite workpiece during one or more of the plurality of fatigue cycles; andanalyzing the acquired data to: determine a change in the reflected ultrasonic energy in response to an increasing number of the plurality of fatigue cycles, wherein the change in the reflected ultrasonic energy indicates at least one potential failure condition of the composite workpiece; andtrack a change in size of the at least one potential failure condition of the composite workpiece as a number of fatigue cycles increases. 13. The method of claim 12, wherein ultrasonically testing the composite workpiece includes: mechanically loading the composite workpiece;during mechanical loading of the composite workpiece, transmitting at least one transmit electrical signal to the at least one ultrasonic testing transducer that causes the at least one ultrasonic testing transducer to send at least one stress wave into the composite workpiece;receiving at least one reflected stress wave at the at least one ultrasonic testing transducer; andconverting the at least one reflected stress wave to at least one receive electrical signal. 14. The method of claim 13, further comprising multiplexing the at least one transmit electrical signal and multiplexing the at least one receive electrical signal. 15. The method of claim 12, further comprising storing the acquired data as stored data. 16. The method of claim 15, further comprising: retrieving the stored data; andanalyzing the stored data. 17. The method of claim 12, wherein the at least one potential failure condition of the composite workpiece corresponds to a failure of the composite workpiece associated with at least one of cracking, delaminating, and disbanding, the method further comprising mechanically loading the composite workpiece during the ultrasonic testing, and automatically stopping the mechanical loading of the composite workpiece responsive to detection of initiation of failure of the composite workpiece. 18. The method of claim 17, further comprising generating an alert in response to stopping the mechanical loading of the composite workpiece. 19. The method of claim 12, further comprising plotting the change in the reflected ultrasonic energy in response to the increasing number of the plurality of fatigue cycles. 20. The method of claim 12, wherein ultrasonically testing the composite workpiece continues after determining the change in the reflected ultrasonic energy.
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