Micromechanical parameters from macromechanical measurements on glass reinforced polypropylene

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

In recent years many elegant techniques have been developed for the quantification of composite micromechanical parameters. Unfortunately most of these techniques have found little enthusiastic support in the industrial product development environment. We have developed an improved method for obtaining the micromechanical parameters, interfacial shear strength, fibre orientation factor, and fibre stress at composite failure using input data from macromechanical tests. In this paper we explore this method through its application to injection moulded glass-fibre-reinforced thermoplastic composites. We have measured the mechanical properties and residual fibre length distributions of glass fibre reinforced polypropylene containing different levels of glass fibre. The level of fibre-matrix interaction in these composites was varied by the addition of maleic anhydride modified polypropylene "coupling agent". This data was used as input for the model. The trends observed for the resultant micromechanical parameters obtained by this method were in good agreement with values obtained by other methods. Given the wealth of microstructural information obtained from this macroscopic analysis and the low level of resources employed to obtain the data we believe that this method deserves further investigation as a screening tool in composite system development programmes.
LanguageEnglish
Pages1455-1468
Number of pages13
JournalComposites Science and Technology
Volume62
Issue number10-11
DOIs
Publication statusPublished - 2002

Fingerprint

Polypropylenes
Glass fibers
Glass
Composite materials
Fibers
Maleic Anhydrides
Coupling agents
Maleic anhydride
Fiber reinforced materials
Product development
Shear strength
Thermoplastics
Large scale systems
Screening
Mechanical properties
fiberglass

Keywords

  • glass fibre
  • interface
  • interfacial shear strength
  • injection moulding
  • thermoplastic
  • fibre strength
  • mechanical engineering

Cite this

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title = "Micromechanical parameters from macromechanical measurements on glass reinforced polypropylene",
abstract = "In recent years many elegant techniques have been developed for the quantification of composite micromechanical parameters. Unfortunately most of these techniques have found little enthusiastic support in the industrial product development environment. We have developed an improved method for obtaining the micromechanical parameters, interfacial shear strength, fibre orientation factor, and fibre stress at composite failure using input data from macromechanical tests. In this paper we explore this method through its application to injection moulded glass-fibre-reinforced thermoplastic composites. We have measured the mechanical properties and residual fibre length distributions of glass fibre reinforced polypropylene containing different levels of glass fibre. The level of fibre-matrix interaction in these composites was varied by the addition of maleic anhydride modified polypropylene {"}coupling agent{"}. This data was used as input for the model. The trends observed for the resultant micromechanical parameters obtained by this method were in good agreement with values obtained by other methods. Given the wealth of microstructural information obtained from this macroscopic analysis and the low level of resources employed to obtain the data we believe that this method deserves further investigation as a screening tool in composite system development programmes.",
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Micromechanical parameters from macromechanical measurements on glass reinforced polypropylene. / Thomason, J.L.

In: Composites Science and Technology, Vol. 62, No. 10-11, 2002, p. 1455-1468.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Micromechanical parameters from macromechanical measurements on glass reinforced polypropylene

AU - Thomason, J.L.

PY - 2002

Y1 - 2002

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AB - In recent years many elegant techniques have been developed for the quantification of composite micromechanical parameters. Unfortunately most of these techniques have found little enthusiastic support in the industrial product development environment. We have developed an improved method for obtaining the micromechanical parameters, interfacial shear strength, fibre orientation factor, and fibre stress at composite failure using input data from macromechanical tests. In this paper we explore this method through its application to injection moulded glass-fibre-reinforced thermoplastic composites. We have measured the mechanical properties and residual fibre length distributions of glass fibre reinforced polypropylene containing different levels of glass fibre. The level of fibre-matrix interaction in these composites was varied by the addition of maleic anhydride modified polypropylene "coupling agent". This data was used as input for the model. The trends observed for the resultant micromechanical parameters obtained by this method were in good agreement with values obtained by other methods. Given the wealth of microstructural information obtained from this macroscopic analysis and the low level of resources employed to obtain the data we believe that this method deserves further investigation as a screening tool in composite system development programmes.

KW - glass fibre

KW - interface

KW - interfacial shear strength

KW - injection moulding

KW - thermoplastic

KW - fibre strength

KW - mechanical engineering

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DO - 10.1016/S0266-3538(02)00097-0

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JO - Composites Science and Technology

T2 - Composites Science and Technology

JF - Composites Science and Technology

SN - 0266-3538

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