نتایج جستجو برای: fiber reinforced polymer

تعداد نتایج: 249132  

2018
Jordan R Raney Brett G Compton Jochen Mueller Thomas J Ober Kristina Shea Jennifer A Lewis

Natural composites exhibit exceptional mechanical performance that often arises from complex fiber arrangements within continuous matrices. Inspired by these natural systems, we developed a rotational 3D printing method that enables spatially controlled orientation of short fibers in polymer matrices solely by varying the nozzle rotation speed relative to the printing speed. Using this method, ...

2017
James P. Lewicki Jennifer N. Rodriguez Cheng Zhu Marcus A. Worsley Amanda S. Wu Yuliya Kanarska John D. Horn Eric B. Duoss Jason M. Ortega William Elmer Ryan Hensleigh Ryan A. Fellini Michael J. King

Here we report the first example of a class of additively manufactured carbon fiber reinforced composite (AMCFRC) materials which have been achieved through the use of a latent thermal cured aromatic thermoset resin system, through an adaptation of direct ink writing (DIW) 3D-printing technology. We have developed a means of printing high performance thermoset carbon fiber composites, which all...

Reza Eslami Farsani Reza Fazaeli Seyed Mohammad Reza Khalili Vahid Daghighi

The creep behavior of basalt fiber reinforced epoxy (BFRE) and glass fiber reinforced epoxy (GFRE) composites was studied through tensile testing at high temperature. To study the effect of reinforcing epoxy, the micro glass powder (MGP) was added at various volume percentage into the epoxy resin in BFRE composites. The initial strain for all the specimens were evaluated and compared with each ...

Journal: :Optics express 2014
Rudolf Weber Thomas Graf Peter Berger Volkher Onuseit Margit Wiedenmann Christian Freitag Anne Feuer

Laser materials processing with ultra-short pulses allows very precise and high quality results with a minimum extent of the thermally affected zone. However, with increasing average laser power and repetition rates the so-called heat accumulation effect becomes a considerable issue. The following discussion presents a comprehensive analytical treatment of multi-pulse processing and reveals the...

Journal: :Defense and security studies 2022

Unmanned Aerial Vehicles (UAVs) have high popularity, especially in the military field, but are now also being applied to private and public sectors. One of UAV components that require material technology is wing. The latest developed as a for unmanned aircraft wings composite has strength lightweight. This research aims identify materials can be used wing structures. method this qualitative wi...

2001
G. M. Odegard V. M. Harik K. E. Wise T. S. Gates

In this study, a technique has been proposed for developing constitutive models for polymer composite systems reinforced with single-walled carbon nanotubes (SWNT). Since the polymer molecules are on the same size scale as the nanotubes, the interaction at the polymer/nanotube interface is highly dependent on the local molecular structure and bonding. At these small length scales, the lattice s...

Journal: :Fibers 2016
Richard Petersen

Carbon fibers have multiple potential advantages in developing high-strength biomaterials with a density close to bone for better stress transfer and electrical properties that enhance tissue formation. As a breakthrough example in biomaterials, a 1.5 mm diameter bisphenol-epoxy/carbon-fiber-reinforced composite rod was compared for two weeks in a rat tibia model with a similar 1.5 mm diameter ...

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