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Structural Mechanics, Mechanics of Materials, Structural Analysis, Material Modeling (numerical, analytical), Testing (mechanical, aging, etc.) of Composites and Polymers, mainly Polymer Matrix and to lesser extent Materials Science and Processing of same. See http://mysite.verizon.net/everbarbero/
Working with Composites since 1983, two patents.
Organizations
Fellow, Society for the Advancement of Materials Process Engineering SAMPE
Fellow, American Society of Mechanical Engineers ASME
Member, American Society for Testing Materials ASTM
Member, American Institute of Aeronautics and Astronautics AIAA
Member, American Society of Engineering Education ASEE
Publications
100+ peer reviewed papers on every major journal on composites and mechanics
Introduction to Composite Materials Design, ISBN: 1-56032-701-4, http://www.mae.wvu.edu/barbero/icmd/
Finite Element Analysis of Composite Materials, ISBN: 1-4200-5433-3, http://www.mae.wvu.edu/barbero/feacm/
Education/Credentials
PhD Engineering Science, 1989, Virginia Tech.
BSME, BSEE, 1983, UNRC.
PhD Engineering Science, 1989, Virginia Tech.
BSME, BSEE, 1983, UNRC.
SAMPE Fellow (2006).
ASME Fellow (2003).
Best Overall Paper Award, Combined Composite Expo’99 and ASCE Materials Conference’99, Cincinnati, OH.
Best Paper Award, 1999 ASME J. of Composites for Construction, Vol. 4, No. 4, p. 185-191.
MAE Alumni Academy Award for Outstanding Teaching, 1999.
SAMPE Faculty Advisor Award 1998.
Researcher of the Year, College of Engineering, WVU, 1996.
Outstanding Researcher Award, College of Engineering, WVU, 1992, 1994, 1996, 1997, 1999.
Best Advanced-Composite Paper Award, Composite Institute, Society of the Plastic Industry, 1994.
Outstanding Graduate Teacher Award, College of Engineering, WVU, 1992.
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Kevlar comes in at least 4 varieties, K29, K49, K179, and TH, with young's modulus 62, 131, 179, and 70 GPa, respectively, all at density 1.45 g/cc. E-glass has modulus 72 GPa and density 2.5 g/cc
Yes, there are. Writen below in LaTeX notation. Taken from Section 1.13.1 of book ISBN 1-4200-5433-3. \nu_{ij}/E_i = \nu_{ji}/E_j ; with i,j=1..3; i\ne j and 0<\nu_{ij}<\sqrt{E_i/E_j} ; with i
With or without resin, it is not true. The strength of E-glass (3.45 GPa) and carbon (3.53 GPA for carbon T300) are virtually identical. Carbon is lighter $ 1.75 g/cc vs. 2.5 g/cc for glass. Some carbon
If all you want is the load at which the first crack occurs in the first lamina to crack, which is called first ply failure (FPF), then you can use max. stress but you have to adjust the strength values
The density of common glass http://hypertextbook.com/facts/2004/ShayeStorm.shtml varies from 2400 to 2800 kg/m^3 (compare with water at 1000 kg/m^3, which is the same as 1 kg/liter). The weight

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