Navigation Links
Using nanotubes to detect and repair cracks in aircraft wings, other structures
Date:9/27/2007

gnostics and no additional or expensive equipment.

Koratkars team made a structure from common epoxy, the kind used to make everything from the lightweight frames of fighter jet wings to countless devices and components used in manufacturing and industry, but added enough multi-walled carbon nanotubes to comprise 1 percent of the structures total weight. The team mechanically mixed the liquid epoxy to ensure the carbon nanotubes were properly dispersed throughout the structure as it dried in a mold. The researchers also introduced into the structure a series of wires in the form of a grid, which can be used to measure electrical resistance and also apply control voltages to the structure.

By sending a small amount of electricity through the carbon nanotubes, the research team was able to measure the electrical resistance between any two points on the wire grid. They then created a tiny crack in the structure, and measured the electrical resistance between the two nearest grid points. Because the electrical current now had to travel around the crack to get from one point to another, the electrical resistance the difficulty electricity faces when moving from one place to the next increased. The longer the crack grew, the higher the electrical resistance between the two points increased.

Koratkar is confident this method will be just as effective with much larger structures. Since the nanotubes are ubiquitous through the structure, this technique can be used to monitor any portion of the structure by performing simple resistance measurements without the need to mount external sensors or sophisticated electronics.

The beauty of this method is that the carbon nanotubes are everywhere. The sensors are actually an integral part of the structure, which allows you to monitor any part of the structure, Koratkar said. Weve shown that nanoscale science, if applied creatively, can really make a difference in large-scale engineering and stru
'/>"/>

Contact: Michael Mullaney
mullam@rpi.edu
518-276-6161
Rensselaer Polytechnic Institute
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. University of Manchester makes made-to-measure skin and bones a reality using inkjet printers
2. Purdue proves concept of using nano-materials for drug discovery
3. An entropy-based gene selection method for cancer classification using microarray data
4. Newly Discovered Compound Blocks Known Cancer-Causing Protein
5. Research Using Mouse Models Reveals A Novel Key Player In The Initiation Of Colon Cancer
6. New methods of gene delivery using lasers
7. Rush Physicians Using Gene Therapy For Heart Patients With Moderate To Severe Chest Pains Who Do Not Benefit From Other Treatments
8. Doctors closer to using gene analysis to help trauma patients
9. PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information
10. Researchers pioneer new gene therapy technique using natural repair process
11. Researchers Closer To Helping Hearing-Impaired Using Stem Cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... of our ideas about domestication derive from Charles ... by British animal-breeding practices during the 19th century, ... improvement. , It is from Darwin that ... of captive animals from wild species and total ... But animal management in this industrial setting has ...
(Date:4/16/2014)... you cannot move your eyes up, and you cannot lift your ... so that your eyes look straight when they are rolled down ... to allow people a normal position of their head. In order ... happens. , In a paper published in the April 16 print ...
(Date:4/16/2014)... Biosciences Division of Lawrence Berkeley National Laboratory (Berkeley Lab) ... authority on the evolutionary design principles of cellular networks ... biology, has been named one of six recipients of ... Secretary Ernest Moniz. The E.O. Lawrence Award, the Department ...
Breaking Biology News(10 mins):The story of animal domestication retold 2The story of animal domestication retold 3The story of animal domestication retold 4Researchers track down cause of eye mobility disorder 2Berkeley Lab's Adam Arkin wins 2013 Lawrence Award 2Berkeley Lab's Adam Arkin wins 2013 Lawrence Award 3
... MCLEAN, Va., Nov. 29, 2012  Northrop Grumman Corporation (NYSE: ... proof of concept for an automated biometric information system ... will be operated for a trial period to enable ... enabled intelligence and to help determine the requirements for ...
... William Cooke, a professor in the UTSA College of Education ... selected to serve as the speaker of the Texas Chapter ... Tour. Over the course of a week, Cooke will deliver ... of ACSM,s Texas Chapter. "This is a big honor ...
... For the first time in its history, the American Society ... opening session of the ASCB,s Annual Meeting, for "An Evening ... Francisco, on Saturday, Dec. 15. Members of the ... will receive complimentary registration to the ASCB keynote addresses ...
Cached Biology News:Northrop Grumman Delivers Australian Automated Biometric Information System Trial Proof of Concept 2UTSA physiologist William Cooke named 2013 Lecture Series Speaker by Texas Sports Medicine Chapter 2Public invited to 'An Evening of Science & Art' at ASCB Annual Meeting 2
(Date:1/15/2014)... 2014  Bill Jacobs Automotive, a group of car dealerships headquartered ... the Heartland Blood Center and offering free oil change coupons ... place Saturday, Jan. 18 at the Bill Jacobs Cadillac and ... (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  The Bill Jacobs ...
(Date:1/15/2014)... SAN JOSE, California , January 15, 2014 ... for cancer, today announced the appointment of Thomas C Reynolds ... over 20 years, development experience gained in the biotechnology industry, ... "I am delighted to welcome Tom at this transformative ...
(Date:1/15/2014)... Two champions of science, technology, engineering, ... an annual competition for middle and high school students ... STEM study. The competition presents students with real-world problems ... Aptitude, Mathematics, and Sciences is a program administered ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 AudioNotch is ... new therapy for the treatment of tinnitus. Patients listen ... frequency, and over a period of weeks to months, their ... Therapy in two forms: Notched Music and Notched White Noise. ...
Breaking Biology Technology:Join the Bill Jacobs Auto blood drive and receive a free oil change 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5
... road show is making its way around Wisconsin to educate ... research - embryonic stem cell research - and its presenters ... skeptical. , ,The presentations by Tom Still, president of the ... operations for the WiCell Research Institute , are being ...
... launch of wireless Internet service in downtown Madison, several would-be ... by area coffee shops. , ,Now, Mad City Broadband ... of Madison's Capitol Square and at Dane County Regional ... The broadband service will add indoor wireless access points in ...
... Some states, including Illinois, are looking at passing statewide bills ... one statewide franchise in order to put in Project Lightspeed ... ,I think that is great. Pass HB 1500 in Illinois. ... franchise, there must be a mandate that every business and ...
Cached Biology Technology:Traveling stem cell show continues state tour 2Traveling stem cell show continues state tour 3Proposed telecom bill would have Katrina impact 2Proposed telecom bill would have Katrina impact 3Proposed telecom bill would have Katrina impact 4Proposed telecom bill would have Katrina impact 5
Agarose II (Low Melt)...
...
... I can be used in intracellular staining ... cells and to serve as an antibody ... cell permeabilization is a reversible process, it ... the presence of saponin during intracellular staining. ...
... antibody raised against a partial ... Immunogen: PPP4C (NP_002711, 218 ... recombinant protein with GST tag. ... NM_002720 ...
Biology Products: