Hemp yarn reinforced composites – III. Moisture content and dimensional changes

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Hemp yarn reinforced composites – III. Moisture content and dimensional changes. / Madsen, Bo; Hoffmeyer, Preben; Lilholt, Hans.

In: Composites Part A: Applied Science and Manufacturing, Vol. 43, No. 11, 2012, p. 2151-2160.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Author

Madsen, Bo; Hoffmeyer, Preben; Lilholt, Hans / Hemp yarn reinforced composites – III. Moisture content and dimensional changes.

In: Composites Part A: Applied Science and Manufacturing, Vol. 43, No. 11, 2012, p. 2151-2160.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{f0f068a1b1ff4254a0cf0b521dceb5e8,
title = "Hemp yarn reinforced composites – III. Moisture content and dimensional changes",
keywords = "A. Lignocellulosic fibres, A. Yarn, B. Physical properties, C. Micro-mechanics",
publisher = "Pergamon",
author = "Bo Madsen and Preben Hoffmeyer and Hans Lilholt",
year = "2012",
doi = "10.1016/j.compositesa.2012.07.010",
volume = "43",
number = "11",
pages = "2151--2160",
journal = "Composites Part A: Applied Science and Manufacturing",
issn = "1359-835X",

}

RIS

TY - JOUR

T1 - Hemp yarn reinforced composites – III. Moisture content and dimensional changes

A1 - Madsen,Bo

A1 - Hoffmeyer,Preben

A1 - Lilholt,Hans

AU - Madsen,Bo

AU - Hoffmeyer,Preben

AU - Lilholt,Hans

PB - Pergamon

PY - 2012

Y1 - 2012

N2 - Based on a comprehensive set of experimental data it is demonstrated that the moisture properties of aligned hemp fibre yarn/thermoplastic matrix composites are showing low moisture sorption capacity and low dimensional changes. Using a reference humidity of 65% RH, and a common span of ambient humidity levels of 33% and 85% RH, the relative moisture content of composites with a high fibre fraction is ranging from −0.009 at 33% RH and+0.016 at 85% RH, and this lead to relative transverse hygral strains in the range of only −0.007 to+0.011. The axial hygral strain is practically zero. The moisture content of the composites is shown to be well predicted by a mixtures relationship using the measured moisture contents of the constituents. The dimensional changes of the composites are well predicted by micromechanical models of the transverse and axial hygral strains.

AB - Based on a comprehensive set of experimental data it is demonstrated that the moisture properties of aligned hemp fibre yarn/thermoplastic matrix composites are showing low moisture sorption capacity and low dimensional changes. Using a reference humidity of 65% RH, and a common span of ambient humidity levels of 33% and 85% RH, the relative moisture content of composites with a high fibre fraction is ranging from −0.009 at 33% RH and+0.016 at 85% RH, and this lead to relative transverse hygral strains in the range of only −0.007 to+0.011. The axial hygral strain is practically zero. The moisture content of the composites is shown to be well predicted by a mixtures relationship using the measured moisture contents of the constituents. The dimensional changes of the composites are well predicted by micromechanical models of the transverse and axial hygral strains.

KW - A. Lignocellulosic fibres

KW - A. Yarn

KW - B. Physical properties

KW - C. Micro-mechanics

U2 - 10.1016/j.compositesa.2012.07.010

DO - 10.1016/j.compositesa.2012.07.010

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

SN - 1359-835X

IS - 11

VL - 43

SP - 2151

EP - 2160

ER -