Thermal Ellipsometry: A Tool Applied for in-Depth Resolved Characterization of Fibre Orientation in Composites
Date
Authors
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Research Projects
Organizational Units
Journal Issue
Is Version Of
Versions
Series
Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
Department
Abstract
Composites with a thermoplastic resin reinforced with short fibres or platelets are commonly processed by injection molding. As far as the fibre orientation is concerned, a stratification generally appears during this operation: near the mould surfaces the fibres are oriented in the direction of the flow, whereas in the middle they are oriented perpendicularly to this direction. The flow parameters obviously determine the relative thickness of this core region and consequently the longitudinal and transverse properties of the composite material. The moulding process has therefore to be optimized so that these anisotropy variations contribute the composite to fulfil the mechanical performance specifications. The in-depth resolved characterization of the filler local orientation as well as its control are thus of prime importance.