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Advanced Fibrous Composites

Nanoscale systems, although still large enough to obey the laws of continuum mechanics, show surprising effects due to their small size. For example, the nanomechanical oscillators can interact with light through heating and optical interference to become self oscillating. These self, or limit cycle, oscillations can be entrained to a small amplitude pilot signal suggesting that arrays of nanomechanical limit cycle oscillators should be able to synchronize, but under what conditions and with what phase relations? We have shown that nanoscale beams fabricated from single crystal silicon can have strengths close to the theoretical strength of the material. Although this strength degrades after extended exposure to air, we found that by coating the beams with self-assembled monolayer high strengths are maintained.


In the area of composite materials we study the failure and damage tolerance of high temperature properties of polyimide matrix composites (PiMC’s). Problems addressed include shear strength, moisture diffusion, nonlinear viscoelastic and viscoplastic constitutive behavior and blistering of the neat resin and laminate under very high heating rates. Future work will include considerations of impact damage and strength after impact.

Research Area Faculty

  Name Department Contact
ch45.jpg Hui, Chung-Yuen
Joseph C. Ford Professor of Engineering
Mechanical and Aerospace Engineering 322 Thurston Hall
607 255-3718
slp6.jpg Phoenix, Stuart Leigh
Professor
Mechanical and Aerospace Engineering 321 Thurston Hall
607 255-8818
ms2682.jpg Silberstein, Meredith
Assistant Professor, Mills Family Faculty Fellow
Mechanical and Aerospace Engineering 281 Kimball Hall
607 255-5063
atz2.jpg Zehnder, Alan Taylor
Professor
Mechanical and Aerospace Engineering 409 Upson Hall
607 255-9181