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Fiber and bundle orientations, matrix rich regions, and mechanical properties of fiber reinforced composites using thermal digital image correlation

Patent ·
OSTI ID:1925066
;
Methods for assessing fiber and bundle orientations and mechanical properties of fiber reinforced composite materials using Thermal Digital Image Correlation (TDIC) are disclosed. In some examples, the method comprises exposing the composite material to a temperature change; imaging the composite material at a plurality of time points before, during and/or after the temperature change; and assessing the characteristic of the composite material based on the imaging. In others, temperature changes naturally occur during the cooling process after manufacturing can be employed for this method such as compression molding process, injection molding process, resin transfer molding processes and its variants.
Research Organization:
Univ. of Tennessee, Knoxville, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0006926
Assignee:
University of Tennessee Research Foundation (Knoxville, TN)
Patent Number(s):
11,435,486
Application Number:
16/562,108
OSTI ID:
1925066
Country of Publication:
United States
Language:
English

References (2)

Transverse and longitudinal coefficient of thermal expansion of carbon fibers at high temperatures (300–2500K) journal November 2008
Characterization of fiber orientation in short fiber reinforced composites with an image processing technique journal September 2002

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