Forming of Thermoplastic Composites

Sebastiaan Haanappel, Ulrich Sachs, R.H.W. ten Thije, Bert Rietman, Remko Akkerman

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Design and production guidelines for UD reinforced thermoplastic composites are highly desirable. Therefore, forming experiments and simulations with a realistic complex shaped product were conducted. Thermoforming experiments with quasi-isotropic UD carbon/PEEK and 8HS woven glass/PPS composites showed a clear difference in formability. Many wrinkles develop near doubly curved areas for the considered UD composites, whereas significant in-plane shear is observed for the woven composites. Forming prediction tools can be utilised to optimise the product design with respect to formability. A forming prediction methodology is shown, which encompasses finite element modelling in combination with material models that describe major deformation mechanisms. Characterisation methods were developed to describe inter-ply friction and in-plane shear. Forming simulations are able to indicate the critical areas for the UD composites, as is concluded from the comparison of wrinkling and in-plane shear distributions within the formed specimens. Forming experiments and predictions match qualitatively well and this tool can successfully be utilised in the product design phases
Original languageEnglish
Pages (from-to)237-242
JournalKey engineering materials
Volume504-506
DOIs
Publication statusPublished - 2012

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Thermoplastics
Composite materials
Formability
Product design
Thermoforming
Polyether ether ketones
Experiments
Carbon
Friction
Glass

Keywords

  • IR-79849
  • METIS-294478

Cite this

Haanappel, Sebastiaan ; Sachs, Ulrich ; ten Thije, R.H.W. ; Rietman, Bert ; Akkerman, Remko. / Forming of Thermoplastic Composites. In: Key engineering materials. 2012 ; Vol. 504-506. pp. 237-242.
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Forming of Thermoplastic Composites. / Haanappel, Sebastiaan; Sachs, Ulrich; ten Thije, R.H.W.; Rietman, Bert; Akkerman, Remko.

In: Key engineering materials, Vol. 504-506, 2012, p. 237-242.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Haanappel, Sebastiaan

AU - Sachs, Ulrich

AU - ten Thije, R.H.W.

AU - Rietman, Bert

AU - Akkerman, Remko

N1 - Volume: Material Forming ESAFORM 2012, ed. by M. Merklein and H. Hagenah

PY - 2012

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AB - Design and production guidelines for UD reinforced thermoplastic composites are highly desirable. Therefore, forming experiments and simulations with a realistic complex shaped product were conducted. Thermoforming experiments with quasi-isotropic UD carbon/PEEK and 8HS woven glass/PPS composites showed a clear difference in formability. Many wrinkles develop near doubly curved areas for the considered UD composites, whereas significant in-plane shear is observed for the woven composites. Forming prediction tools can be utilised to optimise the product design with respect to formability. A forming prediction methodology is shown, which encompasses finite element modelling in combination with material models that describe major deformation mechanisms. Characterisation methods were developed to describe inter-ply friction and in-plane shear. Forming simulations are able to indicate the critical areas for the UD composites, as is concluded from the comparison of wrinkling and in-plane shear distributions within the formed specimens. Forming experiments and predictions match qualitatively well and this tool can successfully be utilised in the product design phases

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