In-Plane Shear Characterisation of Uni-Directionally Reinforced Thermoplastic Melts

S.P. Haanappel; R. ten Thije; U. Sachs; A.D. Rietman; R. Akkerman

doi:10.1063/1.3589635

In-Plane Shear Characterisation of Uni-Directionally Reinforced Thermoplastic Melts

S.P. Haanappel, R. ten Thije, U. Sachs, A.D. Rietman, R. Akkerman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

58 Downloads (Pure)

Abstract

Intra‐ply shear is an important mechanism in hot stamp forming processes of UD fibre reinforced thermoplastic laminates. Various methods have been developed to characterise this shear mechanism, but measured properties may differ for several orders of magnitude. Therefore, an alternative method to characterise the longitudinal shearing viscosity is presented. Straight fibre reinforced thermoplastic bars with a rectangular cross section are subjected to torsional loadings. The specimens' response can be used to characterise the shear properties of the fibre reinforced polymer melt. Different geometries and clamping conditions were modelled to show the sensitivity of the measured viscosity. Based on this, experiments were performed with thick bars with a PEI‐AS4 and PEEK‐AS4 composition. Frequency sweeps were applied at different temperatures. All measurements showed a clear shear thinning behaviour, which can conveniently be described with a power law model.

Original language	English
Title of host publication	The 14th International ESAFORM Conference on Material Forming 2011
Subtitle of host publication	proceedings
Editors	Gary Menary
Publisher	American Institute of Physics
Pages	930-935
ISBN (Print)	978-0-7354-091
DOIs	https://doi.org/10.1063/1.3589635
Publication status	Published - 2011
Event	ESAFORM 2011: 14th International Conference on Material Forming - Queen's University Belfast, Belfast, United Kingdom Duration: 27 Apr 2011 → 29 Apr 2011 Conference number: 14

Conference

Conference	ESAFORM 2011
Abbreviated title	ESAFORM
Country/Territory	United Kingdom
City	Belfast
Period	27/04/11 → 29/04/11

Keywords

Intra-ply shear
Thermoplastic
Melts
Viscosity
Uni-directional
Laminates
Rectangular bar
Torsion
Rheometer

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@inproceedings{171302998bf14bfc93386acfb3653590,

title = "In-Plane Shear Characterisation of Uni-Directionally Reinforced Thermoplastic Melts",

abstract = "Intra‐ply shear is an important mechanism in hot stamp forming processes of UD fibre reinforced thermoplastic laminates. Various methods have been developed to characterise this shear mechanism, but measured properties may differ for several orders of magnitude. Therefore, an alternative method to characterise the longitudinal shearing viscosity is presented. Straight fibre reinforced thermoplastic bars with a rectangular cross section are subjected to torsional loadings. The specimens' response can be used to characterise the shear properties of the fibre reinforced polymer melt. Different geometries and clamping conditions were modelled to show the sensitivity of the measured viscosity. Based on this, experiments were performed with thick bars with a PEI‐AS4 and PEEK‐AS4 composition. Frequency sweeps were applied at different temperatures. All measurements showed a clear shear thinning behaviour, which can conveniently be described with a power law model.",

keywords = "Intra-ply shear, Thermoplastic, Melts, Viscosity, Uni-directional, Laminates, Rectangular bar, Torsion, Rheometer",

author = "S.P. Haanappel and {ten Thije}, R. and U. Sachs and A.D. Rietman and R. Akkerman",

year = "2011",

doi = "10.1063/1.3589635",

language = "English",

isbn = "978-0-7354-091",

pages = "930--935",

editor = "Gary Menary",

booktitle = "The 14th International ESAFORM Conference on Material Forming 2011",

publisher = "American Institute of Physics",

address = "United States",

note = "ESAFORM 2011 : 14th International Conference on Material Forming, ESAFORM ; Conference date: 27-04-2011 Through 29-04-2011",

}

Haanappel, SP, ten Thije, R, Sachs, U, Rietman, AD & Akkerman, R 2011, In-Plane Shear Characterisation of Uni-Directionally Reinforced Thermoplastic Melts. in G Menary (ed.), The 14th International ESAFORM Conference on Material Forming 2011: proceedings. American Institute of Physics, pp. 930-935, ESAFORM 2011, Belfast, United Kingdom, 27/04/11. https://doi.org/10.1063/1.3589635

In-Plane Shear Characterisation of Uni-Directionally Reinforced Thermoplastic Melts. / Haanappel, S.P.; ten Thije, R.; Sachs, U. et al.

The 14th International ESAFORM Conference on Material Forming 2011: proceedings. ed. / Gary Menary. American Institute of Physics, 2011. p. 930-935.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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T1 - In-Plane Shear Characterisation of Uni-Directionally Reinforced Thermoplastic Melts

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AU - ten Thije, R.

AU - Sachs, U.

AU - Rietman, A.D.

AU - Akkerman, R.

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N2 - Intra‐ply shear is an important mechanism in hot stamp forming processes of UD fibre reinforced thermoplastic laminates. Various methods have been developed to characterise this shear mechanism, but measured properties may differ for several orders of magnitude. Therefore, an alternative method to characterise the longitudinal shearing viscosity is presented. Straight fibre reinforced thermoplastic bars with a rectangular cross section are subjected to torsional loadings. The specimens' response can be used to characterise the shear properties of the fibre reinforced polymer melt. Different geometries and clamping conditions were modelled to show the sensitivity of the measured viscosity. Based on this, experiments were performed with thick bars with a PEI‐AS4 and PEEK‐AS4 composition. Frequency sweeps were applied at different temperatures. All measurements showed a clear shear thinning behaviour, which can conveniently be described with a power law model.

AB - Intra‐ply shear is an important mechanism in hot stamp forming processes of UD fibre reinforced thermoplastic laminates. Various methods have been developed to characterise this shear mechanism, but measured properties may differ for several orders of magnitude. Therefore, an alternative method to characterise the longitudinal shearing viscosity is presented. Straight fibre reinforced thermoplastic bars with a rectangular cross section are subjected to torsional loadings. The specimens' response can be used to characterise the shear properties of the fibre reinforced polymer melt. Different geometries and clamping conditions were modelled to show the sensitivity of the measured viscosity. Based on this, experiments were performed with thick bars with a PEI‐AS4 and PEEK‐AS4 composition. Frequency sweeps were applied at different temperatures. All measurements showed a clear shear thinning behaviour, which can conveniently be described with a power law model.

KW - Intra-ply shear

KW - Thermoplastic

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KW - Viscosity

KW - Uni-directional

KW - Laminates

KW - Rectangular bar

KW - Torsion

KW - Rheometer

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M3 - Conference contribution

SN - 978-0-7354-091

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BT - The 14th International ESAFORM Conference on Material Forming 2011

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PB - American Institute of Physics

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Y2 - 27 April 2011 through 29 April 2011

ER -

In-Plane Shear Characterisation of Uni-Directionally Reinforced Thermoplastic Melts

Abstract

Conference

Keywords

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