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powerRibs 5019

powerRibs 5019

powerRibs 5019

Product catalog summary
Fabric Construction
PowerRibs is a flax fiber-based reinforcement fabric with a 0°/90° construction and a grid-like architecture featuring a 14 mm mesh size. It has a fiber tex of 1500 TEX and a fabric weight of 215 gsm +/- 5%. The standard width is 1150 mm, and the roll length is 50 m.
Product Description
PowerRibs is designed for manufacturing high-performance, low-environmental-impact fiber-reinforced composite products. It enhances flexural stiffness and damping properties of thin composite shells with minimal additional weight.
Mechanical Composite Properties
The mechanical properties of PowerRibs are represented by an equivalent homogeneous layer added to the laminate. The Young’s modulus is 3.45 GPa in the wavy ribs direction and 2.65 GPa in the flat ribs direction. The shear modulus is 280 MPa, and Poisson's ratio is 0.04. The density is 363.6 kg/m3, and thickness is 1.21 mm.
Ecological Aspects
Compared to carbon fiber reinforced plastics, PowerRibs has a significantly lower environmental impact, with 85% lower water usage, CO2 footprint, and embodied energy.
Important Facts
  • Compatible with epoxy, polyester, or PP matrix.
  • Flax fibers contain humidity; drying may be necessary for some resins.
  • Optimal rib structure requires a flexible vacuum bag or bladder.
  • Can be used as the last layer or with another fabric layer on top.
  • Near-zero CTE, compatible with carbon fibers.
Processing Guidelines
PowerRibs requires an open mold process. Recommended methods include vacuum infusion, bladder inflation molding, wet lay-up, and prepreg. Each method involves placing PowerRibs as the last layer and using a flexible vacuum bag for optimal results.
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Catalog excerpts

powerRibs 5019-1

Product Data Sheet powerRibs Art. No. 5019 powerRibs Art. No. 5019 0°/90° Product description powerRibs, suitable for manufacturing fiber reinforced composite products with high performance and low environmental impact. This special reinforcement fabric is used to create a rib structure on one surface of the composite layer, significantly increasing the flexural stiffness and damping properties of thin composite shells with little additional weight. Fabric construction Fibre type: Flax (EU) Construction: 0°/90° Fibre tex: 1500 TEX Fabric weight: 215 gsm +/- 5% Architecture: Grid-like fabric with 14 mm mesh size Measurements Standard width: 1150 mm Standard roll length: 50 m Mechanical composite properties Due to the discontinuous 3D structure, the mechanical properties of the powerRibs cannot be described in a generic way. The mechanical properties of powerRibs applied to a base layer can be represented by an equivalent homogeneous layer added to the laminate. The equivalent layer represents the "smeared" effect of the powerRibs over the part's surface. Note that the equivalent modulus is not identical in both in-plane directions. This is due to the ribs being bonded flat to the base in one direction. However, in the other direction the ribs have to "travel" over the flat ribs at each of their intersections (see modeling FE & 3D guide for illustration). Due to its grid structure with big tough yarns, powerRibs provides a very high damage tolerance to the part, also ensuring that it stays in one part even when crashed.

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powerRibs 5019-2

Important facts Product Data Sheet powerRibs Art. No. 5019 Compared to carbon fibre reinforced plastics, powerRibs composite material (flax fibre reinforced plastics) has significantly lower environmental impact due to its weight advantages and lower material input. Water usage, CO2 footprint and embodied energy, is about 85% lower while using flax fibre reinforced plastics. Water usage for composites with Flax fibres Carbon fibres ■ CO2 footprint for composites with 18 „ 13,5 17 Flax fibres Carbon fibres I Embodied energy for composites with 300 225 150 75 0 • PowerRibs are well compatible...

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