Analysis of thermoplastic prepreg bending stiffness during manufacturing and of its influence on wrinkling simulations

Bending properties of thermoplastic prepregs used in aerospace are investigated at representative thermoforming temperatures. The influence of temperature is of principal importance because prepreg manufacturing is performed close to the resin’s melting point. A cantilever test performed in an envir...

Full description

Saved in:

Bibliographic Details
Published in:	Composites. Part A, Applied science and manufacturing Vol. 67; pp. 111 - 122
Main Authors:	Liang, Biao, Hamila, Nahiene, Peillon, Mickaël, Boisse, Philippe
Format:	Journal Article
Language:	English
Published:	Kidlington Elsevier Ltd 01-12-2014 Elsevier
Subjects:	A. Prepreg A. Thermoplastic resin Aircraft components Applied sciences Bend tests Bending E. Forming Engineering Sciences Exact sciences and technology Forms of application and semi-finished materials Laminates Polymer industry, paints, wood Prepregs Simulation Stiffness Technology of polymers Thermoplastic forming Thermoplastic resins Bending A. Prepreg E. Forming A. Thermoplastic resin Fold Laminate Thermoforming Fiber reinforced material Temperature effect Polyetheretherketone Mechanical properties Experimental study Mineral fiber Modeling Phenylene sulfide polymer Thioplast Thermal properties Bending strength Manufacturing defect Prepreg Numerical simulation Technological properties Woven material Carbon fiber Forming Thermoplastic resin
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Bending properties of thermoplastic prepregs used in aerospace are investigated at representative thermoforming temperatures. The influence of temperature is of principal importance because prepreg manufacturing is performed close to the resin’s melting point. A cantilever test performed in an environmental chamber is presented. Bending properties of PEEK-carbon satin and PPS-carbon satin prepregs are measured in a range of temperature including manufacturing temperatures. It is shown that the bending stiffness of the fore-mentioned thermoplastic prepregs are greatly influenced by temperature. The measured bending properties are used to simulate a thermoforming process. The impact of these properties on the simulation results is shown as well. Particularly, bending stiffness during forming determines the size of wrinkles that may appear. The sensitivity of wrinkle size with regards to the measured bending stiffness is analysed.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1359-835X 1878-5840
DOI:	10.1016/j.compositesa.2014.08.020