Mr. John W. Pepi
Sr. Principal Mechanical Engineer at L3 Technologies Inc
SPIE Involvement:
Senior status | Conference Program Committee | Author | Instructor
Publications (16)

PROCEEDINGS ARTICLE | August 23, 2017
Proc. SPIE. 10371, Optomechanical Engineering 2017
KEYWORDS: Finite element methods, Systems modeling

PROCEEDINGS ARTICLE | November 13, 2014
Proc. SPIE. 9197, An Optical Believe It or Not: Key Lessons Learned III
KEYWORDS: Glasses, Failure analysis, Manufacturing, Photography, Statistical analysis, Particles, Analytical research, Surface finishing, Inspection, Corrosion

SPIE Press Author | May 30, 2014

PROCEEDINGS ARTICLE | September 30, 2013
Proc. SPIE. 8837, Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems
KEYWORDS: Optics manufacturing, Silicon carbide, James Webb Space Telescope, Polishing, Manufacturing, Beryllium, Design for manufacturability, Information operations, Glasses, Thermography

PROCEEDINGS ARTICLE | September 18, 2013
Proc. SPIE. 8836, Optomechanical Engineering 2013
KEYWORDS: Mirrors, Lightweight mirrors, Manufacturing, Space telescopes, Polishing, Magnetorheological finishing, Telescopes, Thermography, Hubble Space Telescope, Space mirrors

PROCEEDINGS ARTICLE | September 13, 2012
Proc. SPIE. 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
KEYWORDS: Mirrors, Lightweight mirrors, Space telescopes, Polishing, Telescopes, Magnetorheological finishing, Optical fabrication, Glasses, Zerodur, Metrology

Showing 5 of 16 publications
Conference Committee Involvement (5)
Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems III
7 August 2017 | San Diego, California, United States
Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems II
11 August 2015 | San Diego, California, United States
Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems
26 August 2013 | San Diego, California, United States
Optical Materials and Structures Technologies IV
2 August 2009 | San Diego, California, United States
Optical Materials and Structures Technologies III
26 August 2007 | San Diego, California, United States
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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