Digital Method of Analyzing the Bending Stiffness of Non-Crimp Fabrics

Journal Article · Wed May 04 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3589632· OSTI ID:21516786

Soteropoulos, Dimitri; Fetfatsidis, Konstantine; Sherwood, James A; Langworthy, Joanna ^[1]

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1. Department of Mechanical Engineering, University of Massachusetts, Lowell One University Ave., Lowell, MA 01854 (United States)

A digital-analytical method for characterizing the bending behavior of NCFs (Non-Crimp Fabrics) is developed. The study is based on a hanging fabric loaded to a known displacement. The image of the deformed fabric is captured digitally, and then analyzed to describe the deformed shape of the beam using x-y coordinates. The bending stiffness of the fabric is then determined through an iterative method using a finite element method (ABAQUS). This effective bending stiffness is of importance in the formation of wave defects in NCFs during manufacturing processes such as thermoforming, vacuum assisted resin transfer molding, and compression molding.

• OSTI ID: 21516786
• Journal Information: AIP Conference Proceedings, Vol. 1353, Issue 1; Conference: ESAFORM 2011: 14. international ESAFORM conference on material forming, Belfast, Northern Ireland (United Kingdom), 27-29 Apr 2011; Other Information: DOI: 10.1063/1.3589632; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
BENDING
COMPOSITE MATERIALS
COMPRESSION
COORDINATES
FIBERS
FINITE ELEMENT METHOD
FLEXIBILITY
IMAGES
ITERATIVE METHODS
MANUFACTURING
MOLDING
CALCULATION METHODS
DEFORMATION
FABRICATION
MATERIALS
MATHEMATICAL SOLUTIONS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
TENSILE PROPERTIES