Luna Innovations’ ODiSI sensing platform provides greater insight into condition of composites
12 Abril 2012 - 10:16AM
Business Wire
Tests conducted on composite aircraft fuselage test panels show
that new sensing technology from Luna Innovations Incorporated
(NASDAQ: LUNA) offers aerospace manufacturers and operators greater
insight into the condition of composite structures.
Highly distributed strain sensing is now available with Luna’s
ODiSI (Optical Distributed Sensor Interrogator) instrument.
According to tests conducted by the University of California-San
Diego and the FAA Airworthiness Assurance Center operated by Sandia
National Labs, the ODiSI measures the performance, tolerances and
failure mechanisms of structures and vehicles.
Researchers fired ice balls of approximately 2.5 inches in
diameter onto two carbon fiber-epoxy test panels representative of
composite surfaces found on a range of modern aircraft such as the
B787, A350 or A380. In one panel optical sensing fiber was embedded
within the composite laminate during layup and co-cured; in the
second panel sensing fiber was surface bonded to the panel
skin.
Results showed residual, lasting strain after the impact,
offering better insight into how the impact of debris and
collisions affects composites. Looking at the residual strain in
the fiber as it is mapped to the panel surface, the impact location
is identifiable in a single scan of the laser by the strain left in
the fiber. Current inspection techniques are labor intensive and
require examination of the surface in small sections at a time.
“Our technology gives manufacturers and operators the ability to
know what is happening inside composite structures and see damage
even if it’s not visible,” said My Chung, CEO. “The tests
demonstrate that composite structure testing is not only possible
but that manufacturers and operators can test the condition of
composite structures like never before.”
ODiSI provides a constant picture of a structure’s load
distribution with a sensor mass of only a few grams. It utilizes
low-cost optical fiber for unprecedented sensor density for strain
or temperature sensing applications and delivers hundreds of
measurement locations per meter of fiber with resolutions of a few
microstrains.
With sensors suitable for surface bonding or embedding in
composites, ODiSI can be used either during manufacturing or later
installation.
First introduced in August 2011, ODiSI supports the exacting
standards of the aerospace, automotive, energy and other composites
industries where high-density strain or temperature measurements
are required for structural or mechanical testing. The product is
sold under the company's test and measurement equipment brand name
Luna Technologies.
“Luna Innovations is improving the way composite materials are
tested and validated for peak performance and safety, particularly
in the aerospace and energy markets, and customers are starting to
embrace our technology around the world,” Chung said. “ODiSI is an
integral part of our corporate strategy to grow revenue that
focuses on serving high-growth industries with new-technology
solutions.”
Composite materials have seen increased usage in the aerospace
industry due to weight-saving initiatives. For example, the new
Boeing 787 is nearly 80 percent composites by volume. Safety
concerns with widespread composites use have arisen because these
materials do not visibly show fatigue and impact damage the way
traditional materials do.
ODiSI applications include composite structure design and model
verification, design improvement, manufacturing process
verification, structural health monitoring and performance
optimization. ODiSI provides a sensing solution that is rich in
data content, lightweight, robust, easy to install, and does not
require expensive fiber containing Fiber Bragg Gratings (FBGs).
About Luna Innovations
Luna Innovations Incorporated (www.lunainnovations.com) focuses
on sensing and instrumentation. Luna develops and manufactures
new-generation products for the healthcare, telecommunications,
energy and defense markets. The company's products are used to
measure, monitor, protect and improve critical processes in the
markets it serves. Through its disciplined commercialization
business model, Luna has become a recognized leader in
transitioning science to solutions.
Forward-Looking Statements
This release includes information that constitutes
"forward-looking statements" made pursuant to the safe harbor
provision of the Private Securities Litigation Reform Act of 1995,
including statements regarding, but not limited to: product
capabilities, technological attributes, advantages and
applications, and customer use. Statements that describe the
company's business strategy, goals, prospects, opportunities,
outlook, plans or intentions are also forward-looking statements.
Actual results may differ materially from the expectations
expressed in such forward-looking statements as a result of various
factors, including technological challenges in specific
applications and risks and uncertainties set forth in the company's
periodic reports and other filings with the Securities and Exchange
Commission. Such filings are available at the SEC's website at
http://www.sec.gov, and at the company's website at
http://www.lunainnovations.com. The statements made in this release
are based on information available to the company as of the date of
this release and Luna Innovations undertakes no obligation to
update any of the forward-looking statements after the date of this
release.
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