Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2549-2563 |
| Journal | Journal of Composite Materials |
| Volume | 50 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2016 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- fibres
- polymer matrix composites
- short fibre composites
- strength
- elastic properties
- finite element modelling
- model
- microtomography
- image analysis
- ProperTune
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Predicting stiffness and strength of birch pulp : Polylactic acid composites. / Sippola, Merja (Corresponding Author); Immonen, Kirsi; Miettinen, Arttu; Laukkanen, Anssi; Andersson, Tom; Peltola, Heidi; Harlin, Ali; Holmberg, Kenneth.
In: Journal of Composite Materials, Vol. 50, No. 18, 2016, p. 2549-2563.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Predicting stiffness and strength of birch pulp
T2 - Polylactic acid composites
AU - Sippola, Merja
AU - Immonen, Kirsi
AU - Miettinen, Arttu
AU - Laukkanen, Anssi
AU - Andersson, Tom
AU - Peltola, Heidi
AU - Harlin, Ali
AU - Holmberg, Kenneth
N1 - AU2: Holmberg, Kenneth ISI: MATERIALS SCIENCE, COMPOSITES
PY - 2016
Y1 - 2016
N2 - This paper studies failure of birch pulp-polylactic acid composites. Stiffness and strength are calculated using the theory of short fibre composites and the results are compared to experimental data. The results differed from the experimental values by 0-6%. With less aligned fibres the short fibre theory is not feasible. The performance of the 40 wt% birch pulp - polylactic acid composite is predicted with X-ray microtomography based finite element modelling, and the results are compared with experiments. Stiffness results differed from experiments by 1-17% . By adding into the models a third material phase representing the interface between the fibres and the matrix, the stress-strain curve of the composite was obtained with good accuracy. The work presents finite element modelling methodology of wood plastic composites and the critical further steps needed in order to assess the stress-strain behaviour, strength and stiffness. Tools for comparing different wood plastic composite microstructures are also presented.
AB - This paper studies failure of birch pulp-polylactic acid composites. Stiffness and strength are calculated using the theory of short fibre composites and the results are compared to experimental data. The results differed from the experimental values by 0-6%. With less aligned fibres the short fibre theory is not feasible. The performance of the 40 wt% birch pulp - polylactic acid composite is predicted with X-ray microtomography based finite element modelling, and the results are compared with experiments. Stiffness results differed from experiments by 1-17% . By adding into the models a third material phase representing the interface between the fibres and the matrix, the stress-strain curve of the composite was obtained with good accuracy. The work presents finite element modelling methodology of wood plastic composites and the critical further steps needed in order to assess the stress-strain behaviour, strength and stiffness. Tools for comparing different wood plastic composite microstructures are also presented.
KW - fibres
KW - polymer matrix composites
KW - short fibre composites
KW - strength
KW - elastic properties
KW - finite element modelling
KW - model
KW - microtomography
KW - image analysis
KW - ProperTune
U2 - 10.1177/0021998315608431
DO - 10.1177/0021998315608431
M3 - Article
VL - 50
SP - 2549
EP - 2563
JO - Journal of Composite Materials
JF - Journal of Composite Materials
SN - 0021-9983
IS - 18
ER -