University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Selected Publication:
Buksnowitz, C; Adusumalli, R; Pahler, A; Sixta, H; Gindl, W.
(2010):
Acoustical properties of Lyocell, hemp, and flax composites
J REINF PLAST COMPOSITE. 2010; 29(20): 3149-3154.
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- Abstract:
- This study characterizes the acoustical behavior of natural fiber composites. Regenerated cellulose fibers (Lyocell), hemp fibers, and flax fibers were embedded in an epoxy-matrix. These unidirectional composites were tested for their logarithmic damping decrement, the resonance frequency, the ultrasound velocity, the dynamic and static modulus of elasticity, and bending strength and density. Glass-epoxy composites served as a reference. All tested cellulosic fibers showed a significantly higher damping at lower densities. The ultrasound velocity was in the range of the reference for Lyocell- and hemp-fiber composites. Taking the low density into account, the dynamic and static modulus of elasticity of the samples were relatively high compared to the glass reference. The specific acoustical properties of these natural fiber composites point at high value applications, e. g., devices that require high damping of the body structures.
- Authors BOKU Wien:
- Buksnowitz Christoph
- Gindl-Altmutter Wolfgang
- Find related publications in this database (Keywords)
- natural fibers
- Lyocell
- acoustical properties
- dynamic modulus of elasticity
- logarithmic damping decrement
- ultrasound velocity
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