NATIONAL INSTITUTE OF AEROSPACE

2.10.17 Composite Presentations by University of Tokyo/JAXA/NCSU

2.10.17 Composite Presentations by University of Tokyo/JAXA/NCSU

Title #1: Next-Generation Aircraft Polymer Composites by Japan SIP Project and Advanced Internal-Strain-Based Process Simulation Scheme for Their Development

Date: Friday, February 10, 2017

Time: 9:45am-10:15am

Location: NIA, Room 141

Speaker: Shu Minakuchi, PhD, Project Associate Professor, University of Tokyo

Abstract: This talk first introduces development of next-generation aircraft polymer composites in Japan SIP (Cross-ministerial Strategic Innovation Promotion Program) project. The development includes out-of-autoclave

(OOA) prepreg, 3D gap resin transfer molding, heat-resistance composites, tough composites with high productivity. Next, advanced process simulation scheme supporting this development is explained. This simulation scheme fully integrates in-situ cure strain measurement by fiber-optic sensors and can precisely predict internal stress/strain state of complex-shaped composite structures during curing, which is a technical basis for mechanism-based process optimization with minimal trial-and-error for next generation composite structures.

Bio & Expertise: Dr. Minakuchi completed his PhD at the University of Tokyo in 2008 and became Assistant Professor at the University of Tokyo and beginning in January 2015 became Project Associate Professor. His areas of expertise are process monitoring and simulation, structural health monitoring, optical fiber sensors, self-healing, and bonded joints

 

Title #2: Current Status & Future Directions of JAXA’s Composite Research Activity

Time: 10:15am-10:45am

Location: NIA, Room 141

Speaker: Yuichiro Aoki, PhD, Associate Senior Researcher, JAXA

Abstract: This talk will describe JAXA’s view of how to move beyond the current state-of-art technologies in composites for future aircraft by using new materials, design tools and virtual testing. Research areas such as thin-ply CFRP, optimization method and FE modelling/prediction will be briefly discussed with a focus on how those need to be improved and matured for satisfying requirements in aerospace industry. And, the presentation will also highlight the numerical method for delamination and debonding to evaluate structural vulnerability in composite aircraft structures.

Bio & Expertise: Composite structure, Fracture mechanics, Progressive failure analysis, Damage toleranc

 

Title #3: Evaluating material property development of CFRP during cure based on in-situ measurement of internal strain

Time: 10:45am-11:00am

Location: NIA, Room 141

Speakers: Shoma Niwa, RA for Dr. Takeda, University of Tokyo

 

Title #4: Process improvement for out-of-autoclave prepreg curing supported by in-situ strain monitoring

Speakers: Shinsaku Hisada, RA for Dr. Takeda, University of Tokyo

 

Title #5: Real-Time Cure Monitoring of Composites Using a Guided Wave-Based System with Piezoelectric Transducers and Fiber Bragg Grating Sensors

Time: 11:00am – 11:30am

Location: NIA, Room 141

Speaker: Tyler Hudson, PhD Candidate, NIA and North Carolina State University

Abstract: This talk will discuss the development of a guided wave-based technique for in-situ cure monitoring of carbon fiber reinforced polymer (CFRP) composites using high-temperature piezoelectric transducers.  In addition, it will cover current work on incorporating embedded fiber Bragg grating (FBG) sensors for guided wave sensing during cure in complement to piezoelectric transducers.

Bio & Expertise: Tyler was in intern at Duke Energy (August, 2011), and intern at Progress Energy (August, 2012), and intern at Caterpillar (August, 2013) and then became a Graduate Research Assistant at NCSU & NASA/Langley in the Advanced Materials and Processing Branch (May, 2014) and anticipates graduating in December 2017 with his PhD from North Carolina State University. His areas of expertise are composite processing, non-destructive evaluation, cure monitoring, structural health monitoring and composite process modeling.

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