Industry-University Crosstalk Mike Czabaj University of Utah - - PowerPoint PPT Presentation

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Feb 02, 2023 685 likes •790 views

Industry-University Crosstalk Mike Czabaj University of Utah m.czabaj@utah.edu 1 Nov 2107 My background Graduate work: high-temperature fracture of polyimide-matrix composites, and damage tolerance of sandwich composites 4 years as a

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Industry-University Crosstalk

Mike Czabaj University of Utah

m.czabaj@utah.edu

1 Nov 2107

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My background

Graduate work: high-temperature fracture of polyimide-matrix

composites, and damage tolerance of sandwich composites

4 years as a Materials Research Engineer at NASA Langley
3 years as a Mechanical Engineering Assistant Professor at the U
2016 Faculty Fellow at the Air Force Research Lab (AFRL/RXCC)
Chair, ASTM Committee D30-06 on Interlaminar Properties

Research focus: Experimental and numerical fracture mechanics of fiber reinforced composites

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Utah Composites Laboratory ry

Co-directed by Dan Adams and Mike Czabaj
Managed by Jeff Kessler
11 Ph.Ds., 12 M.S., and 11 URAs
Facilities:
Materials and structures testing lab
Non-destructive evaluation and imaging lab
Composites fabrication lab

Our research philosophy:

Use best available experimental and computational tools to understand how composites deform, damage, and fail across broad range of length and time scales, as well as, various operating conditions.

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Spectrum of our research efforts

Basic science Applied engineering

Micromechanics Characterization of microscale failure Characterization of ply-level damage initiation and evolution Design and standardization

f characterization tests

Structural testing Modeling of progressive damage Testing and analysis of scarf repairs

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Materials and structural testing lab
Uniaxial and tension-torsion servo-hydraulic load frames
Electromechanical and electrodynamic load frames
Instron Dynatup and custom drop towers
Non-destructive evaluation and imaging lab
X-ray computed tomography (Varian, GE)
Digital Image Correlation (2D and 3D, macro, micro)
Sonix Ultrasonic Inspection System
Acoustic emission sensors
Composites fabrication
Autoclave, hot press, curing ovens
LulzBot 3D printers, X-winder 8ft 4-axis winder
Miscellaneous
Laser vibrometer, shaker table, hi-speed cameras, accelerometers,

strain conditioning and acquisition, suite of testing fixtures

Experimental facilities

Merrill Engineering Building Nanofab Facility

Optical microscopy, SEM, TEM, FIB, EBSD

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Characterization of fracture in in PMCs and CMCs at t th the mic icroscale

Ceramic matrix composite Polymer matrix composite

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Damage evolu lution in in bia iaxia ially lo loaded composites at t cry ryo-temperatures

NASA.gov

NASA SLS core stage Biaxial cruciform geometry

X-rays

Permeation of the cryogen Progressive damage modeling Numerical and experimental results

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Testi ting and analy lysis of composit ite scarf repairs

www.airforce-technology.com

Experimental and numerical building block approach

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Our r needs from th the Utah composit ites in industry try

Tours of your composites facilities (~120 students in Mechanics of

Composites class each year)

Internships and job opportunities for our students (B.S., M.S., Ph.D)
Non-essential hardware and raw materials (e.g. expired pre-preg,

adhesives, lab supplies)

Sponsorship of composites-related senior design projects ($$, raw

materials, expertise)