Alp Tugrul Findikoglu

Title: Innovations of Alp Tugrul Findikoglu

Introduction

Alp Tugrul Findikoglu is a prominent inventor based in Los Alamos, NM (US). He has made significant contributions to the field of structural health monitoring through his innovative patents. With a total of 16 patents, Findikoglu has developed methods that enhance the detection and assessment of microstructural defects in various structures.

Latest Patents

One of his latest patents focuses on the detection and monitoring of cracks and fractures using nonlinear response to multimode acoustic signals. This invention discloses methods and apparatus for assessing microstructural defects in large structures. The technology utilizes third-order elastic constants to engender nonlinear excitation of acoustic modes, particularly at points of local stiffness changes or stress concentration, such as the ends of microcracks. A broadband multimode acoustic signal is transmitted through an interrogation region from a first transducer, while a second transducer receives an acoustic signal containing both linear and nonlinear components. By canceling the linear terms, the magnitude of the nonlinear acoustic response is measured using time-resolved spectral analysis. This process determines a coefficient for acoustic nonlinearity, which serves as a qualitative or quantitative representation of microcrack damage. The use of broadband signals helps avoid mode-specific effects like shadowing or phase mismatch, allowing for the identification of damage location by region or time-of-flight.

Another notable patent involves a combined analytic technique for differentiating changes to structures using acoustic signals. This invention employs combinations of multiple analytic techniques to identify changes in a structure based on variations in the characteristics of acoustic signals traveling along it. By monitoring these signals, changes from baseline characteristics can be detected. The analysis of these changes is processed using multiple techniques in the time-domain, frequency-domain, and mixed time-frequency-domain. This comprehensive approach allows for the identification of structural changes based on the combined results of the analyses.

Career Highlights

Throughout his career, Findikoglu has worked with notable organizations, including Triad National Security, LLC and Chevron U.S.A. Inc. His work has significantly impacted the field of structural monitoring and defect detection.

Collaborations

Findikoglu has collaborated with esteemed colleagues such as Quanxi Jia and Daniel Robert Chapman, contributing to advancements in their respective fields.

Conclusion

Alp Tugrul Findikoglu's innovative work