Micromechanical parameters from macromechanical measurements on glass-reinforced polybutyleneterepthalate

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Abstract

Many elegant techniques have been developed for the quantification of composite micromechanical parameters in recent years. 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 polybutyleneterepthalate containing different levels of glass fibre. 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
Pages331-339
Number of pages8
JournalComposites Part A: Applied Science and Manufacturing
Volume33
Issue number3
DOIs
Publication statusPublished - 2002

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Glass fibers
Glass
Composite materials
Fibers
Fiber reinforced materials
Product development
Shear strength
Thermoplastics
Large scale systems
Screening
Mechanical properties
fiberglass

Keywords

  • glass fibre
  • thermoplastic
  • interfacial shear strength
  • fibre strength
  • injection moulding

Cite this

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title = "Micromechanical parameters from macromechanical measurements on glass-reinforced polybutyleneterepthalate",
abstract = "Many elegant techniques have been developed for the quantification of composite micromechanical parameters in recent years. 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 polybutyleneterepthalate containing different levels of glass fibre. 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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AB - Many elegant techniques have been developed for the quantification of composite micromechanical parameters in recent years. 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 polybutyleneterepthalate containing different levels of glass fibre. 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 - thermoplastic

KW - interfacial shear strength

KW - fibre strength

KW - injection moulding

UR - http://dx.doi.org/10.1016/S1359-835X(01)00129-4

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