James R Kennedy

Title: Innovations of James R. Kennedy

Introduction

James R. Kennedy is a notable inventor based in Huntington, NY (US). He has made significant contributions to the field of engineering, particularly in the area of fastener hole inspection and measurement. With a total of 7 patents to his name, Kennedy's work has advanced the understanding of structural integrity in engineering applications.

Latest Patents

One of Kennedy's latest patents is the "Surface Displacement Measurement Gauge." This innovative gauge is designed to measure an out-of-plane surface displacement profile around a cold-worked fastener hole. It relates to the distribution of residual compressive stresses around the hole and its impact on fatigue life. The gauge features a deformable strain sensor that can be positioned to conform to the out-of-plane surface of the structural material surrounding the cold-worked hole. A measurement reporting readout device communicates with the strain sensor, providing three-dimensional surface-profile measurement data. This data is crucial for determining or verifying the cold expansion magnitude and uniformity, which ultimately affects the fatigue life of the material.

Another significant patent is the "Method for Quantitative Inspection of Cold-Expanded Fastener Holes." This method inspects a cold-expanded fastener hole in a structural part to confirm that it has been expanded by the desired amount. It involves determining the degree of expansion based on the out-of-plane deformation in the material surrounding the entrance or exit of the hole. By comparing this deformation to a model constructed from an array of determined out-of-plane deformation profiles, the degree of expansion can be accurately derived.

Career Highlights

Throughout his career, James R. Kennedy has worked with prominent companies such as Grumman Aerospace Corporation and Northrop Grumman Systems Corporation. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in aerospace engineering.

Collaborations

Kennedy has collaborated with notable coworkers, including Edmund Y. Ting and John M. Papazian. Their combined expertise has fostered a productive environment for innovation and development in their respective fields.

Conclusion

James R. Kennedy's contributions to engineering through his patents and career achievements highlight his role as a significant inventor. His work continues to influence the industry, ensuring the safety and reliability of structural components.