John W. Pepi
Scientist at L3Harris Technologies Inc
SPIE Involvement:
Author | Instructor
Publications (19)

Proceedings Article | 11 August 2021 Presentation + Paper
Proceedings Volume 11816, 118160D (2021) https://doi.org/10.1117/12.2598670
KEYWORDS: Head, Aluminum, Safety, Calibration, Aerospace engineering, Space operations, Imaging systems

Proceedings Article | 11 August 2021 Presentation + Paper
Proceedings Volume 11816, 118160L (2021) https://doi.org/10.1117/12.2593461
KEYWORDS: Solids, Mirrors, Lightweight mirrors, Wavefronts, Finite element methods, Error analysis, Optical mounts, Mathematics, Mathematical modeling, Kinematics

SPIE Press Book | 10 December 2018
KEYWORDS: Glasses, Silicon carbide, Mirrors, Beryllium, Epoxies, Solids, Aluminum, Adhesives, Composites, Silicon

Proceedings Article | 23 August 2017 Presentation + Paper
Proceedings Volume 10371, 1037108 (2017) https://doi.org/10.1117/12.2274817
KEYWORDS: Finite element methods, Systems modeling

Proceedings Article | 13 November 2014 Paper
Proceedings Volume 9197, 91970G (2014) https://doi.org/10.1117/12.2066942
KEYWORDS: Glasses, Failure analysis, Manufacturing, Photography, Statistical analysis, Particles, Analytical research, Surface finishing, Inspection, Corrosion

Showing 5 of 19 publications
Conference Committee Involvement (10)
Optomechanical Engineering 2025
3 August 2025 | San Diego, California, United States
Optomechanical Engineering 2023
23 August 2023 | San Diego, California, United States
Optomechanics and Optical Alignment
1 August 2021 | San Diego, California, United States
Optomechanical Engineering 2019
14 August 2019 | San Diego, California, United States
Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems IV
12 August 2019 | San Diego, California, United States
Showing 5 of 10 Conference Committees
Course Instructor
SC796: Strength Properties of Glass and Ceramics
This course provides attendees with a basic understanding of the terminology and analyses used in a fracture mechanics approach to determine the strength of glass, crystals, and ceramics. The course focuses on the determination of inert strength based on surface flaws, and reduction of such strength of these materials in the presence of time and moisture. Included are the effects of residual stress on lifetime, and basic reliability predictions. Examples from the literature are presented to bear out the theoretical design principles.
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