In-situ damage detection system for mechanophore-embedded fiber reinforced composites

A Chattopadhyay, B Koo, L Dai, R Gunckel… - US Patent …, 2021 - Google Patents
Methods and systems are provided for detecting mechano phore damage in a composite
material where the mechano phores are embedded in a matrix of the composite material. A …

Carbon nanotube heater composite tooling apparatus and method of use

AP Skinner, KS O'neill, RC Igwe, P Cox… - US Patent 11,930,565, 2024 - Google Patents
The present invention is an apparatus for curing composites out-of-autoclave and out-of-
oven. The apparatus is a multilayered composite tool for shaping and curing composites. It …

Carbon nanotube heater composite tooling apparatus and method of use

AP Skinner, KS O'neill, RC Igwe, P Cox… - US Patent 12,114,403, 2024 - Google Patents
The present invention is an apparatus for curing composites out-of-autoclave and out-of-
oven. The apparatus is a multilayered composite tool for shaping and curing composites. It …

Mechanophore-grafted polymers to form stress-responsive thermoset network

L Dai, A Chattopadhyay, E Nofen, J Zou… - US Patent …, 2023 - Google Patents
Compositions including a thermosetting polymer network and a mechanophore covalently
bonded to the thermosetting polymer network are provided. Substrates including the …

Stress-responsive composites

R Gunckel, L Dai, A Chattopadhyay, B Koo - US Patent 11,174,359, 2021 - Google Patents
Composite material can include a matrix material, a fiber dispersed in the matrix material,
and an ultraviolet (UV)-light sensitive mechanophore grafted to a surface of the fiber. A …

Mechanophore-grafted polymers to form stress-responsive thermoset network

L Dai, A Chattopadhyay, E Nofen, J Zou… - US Patent …, 2021 - Google Patents
Compositions including a thermosetting polymer network and a mechanophore covalently
bonded to the thermosetting polymer network are provided. Substrates including the …

Flexible foam resistive heaters and methods of making flexible resistive heaters

K Palmer, AM Heintz, BR Burton, S Danhof… - US Patent …, 2023 - Google Patents
Flexible foam resistive heaters prepared with conductive coatings are described. The
invention also includes methods of making flexible lead (busbar) connections with low …