A model for the diaphragm forming process

The diaphragm forming process is a potential manufacturing method for advanced thermoplastic matrix composites. This process involves stacking continuous fiber reinforced thermoplastic prepregs in an arbitrary sequence to form a laminate. Polymeric diaphragms are placed on top and bottom of the prepreg layers to hold the material. The diaphragms are larger than the prepreg so that the composite can move freely between the diaphragms. The diaphragms are clamped around their edges. The material is then heated above the melting temperature of the matrix and pressure is applied to force the material onto a one-sided tool. The formability of this process is difficult to predict. Some doubly-curved shapes can be made, while others cannot be formed or always wrinkle.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Science and Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Hwang, Sheng-Jye

Contributors dc:contributor

• Tucker, Charles L., III

• Engineering, Chemical
• Engineering, Mechanical
• Engineering, Materials Science

Statement dc:rights

• Copyright 1992 Hwang, Sheng-Jye

Language dc:language

eng

Identifier

AAI9305562
(UMI)AAI9305562

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/23095