Composites Design Conference

Composites Design Conference

Innovations to increase toughness and reliability of composites
Totally new Non-Crimp Fiber to facilitate design and manufacturing • Tools for every engineer to optimize structures

 Tuesday March 27 – 2:30pm / 5:00pm

Totally new Non-Crimp Fiber to facilitate design and manufacturing

1 - Advanced NCF for unprecedented weight savings

Chomarat Group
Philippe Sanial (France)
Group R&D Director

· Bi-angle thin-ply NCF lead to anisotropic, homogenized laminates
· A variety of NCF with thick-thin plies, variable angles, and hybrids (Carbon, Glass)
· Our NCF handles like fabric but has strength comparable with unitape

2 - Stiffness and strength measurements of thin-ply NCF

NASA Marshall Space Flight Center
Alan T. Nettles (USA)
Ph.D. Virginia Tech
Composite Materials Engineer

· Stiffness and strength of bi-angle and [π/4] thin-ply NCF
· NCF data are competitive with laminates from unitape
· Opportunity in simultaneous weight and cost reduction

3 - Bi-angle thin-ply NCF for automated tape laying

MAG IAS, LLC
James R. Hecht (USA)
Director, Composite Application Engineering – Aerospace
 

Santa Clara University
Dr. T. Kim Parnell (USA)
Adjunct Professor - Santa Clara University & Principal - Parnell Engineering & Consulting (PEC)
 
· One or two axis layup of customized NCF provide new design options
· Discontinuity seams of off-axis plies can be engineered to reduce their effects
· NCF tapes for flat and curved panels can reduce weight, cost, and fabrication time

Tools for every engineer to optimize structures

4 - Structural integrity of thin ply laminates

University of Girona
Prof. Josep Costa (Spain)
Professor and principal investigator of the AMADE Research Group

· Advantages of thin ply laminates on delamination resistance
· Delay of the onset of ply failure using thin plies
· Design tools for laminates manufactured with thin plies

5 - Innovative design procedure for large scale wind turbine blades

Hanyang University
Dr. Sung K. Ha (South Korea)
Ph.D. Stanford University - Professor Mechanical Engineering

· Wind turbine blade preliminary design with simple tool
· NCF offers unique material and processing opportunities
· Straight versus curved blade design
· Micromechanics-based fatigue life prediction

6 - Composites failure criteria with uncertainty quantification and estimation of A- and B- basis for design

National Institute of Standards & Technology
Dr. Jeffrey T. Fong (USA)
Ph.D. Stanford University Adjunct Research Professor - Drexel University, Physicist and Project Manager (NIST)

· Review of composite failure criteria
· Plane stress tensile failure criteria
· Uncertainty quantification using error propagation formulas
· Estimation of A- and B- allowables using software DATAPLOT