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

ctures.

Koratkar said the new crack detection method should eventually be more cost effective and more convenient than ultrasonic sensors commonly used today. His sensor system can also be used in real time as a device or component is in use, whereas the sonic sensors are external units that require a great deal of time to scan the entire surface area of a stationary structure.

Plus, Koratkars system features a built-in repair kit.

When a crack is detected, Koratkar can increase the voltage going through the carbon nanotubes at a particular point in the grid. This extra voltage creates heat, which in turn melts a commercially available healing agent that was mixed into the epoxy. The melted healing agent flows into the crack and cools down, effectively curing the crack. Koratkar shows that these mended structures are about 70 percent as strong as the original, uncracked structure strong enough to prevent a complete, or catastrophic, structural failure. This method is an effective way to combat both microcracks, as well as a less-common form of structural damage called delamination.

Whats novel about this application is that were using carbon nanotubes not just to detect the crack, but also to heal the crack, he said. We use the nanotubes to create localized heat, which melts the healing agent, and thats what cures the crack.

Koratkar said he envisions the new system for detecting cracks to eventually be integrated into the built-in computer system of a fighter jet or large piece of equipment. The system will allow the operator to monitor a structures integrity in real time, and any microcracks or delamination will become obvious by provoking a change in electrical resistance at some point in the structure.

The system should help increase the lifetime, safety, and cost effectiveness of polymer structures, which are commonly used in place of metal when weight is a factor, Koratkar said. There is also evidence tha
'/>"/>

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:7/10/2014)...  Pomerantz LLP has filed a class action ... "Company")(NYSE-MKT: PVCT) and certain of its officers.  The ... Middle District of Tennessee , ... consisting of all persons or entities who purchased ... 2013 and May 22, 2014, both dates inclusive ...
(Date:7/10/2014)... SHELTON, Conn. , July 2, 2014 NXT-ID, Inc., ... market, reports that CEO Mr. Gino Pereira was ... radio show in Tampa Florida . Mr. ... radio host Cedric Harris and how the Wocket™ ... secure alternative.  Cedric Harris tells ...
(Date:7/10/2014)... 8, 2014 Fingerprint Cards, ... design win (DW). An Asian OEM has selected FPC1021 for ... start in August 2014.   FPC is proud ... has a planned date for start of mass production in ... of SEK 5M, for delivery in the first half of ...
Breaking Biology News(10 mins):SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 2Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 4FPC Wins DW and Initial Ramp Order for FPC1021 Touch Sensor for Flagship Smartphone from Asian OEM 2
... an effective vaccine for hepatitis B and public health officials ... for the infectious liver disease, tens of thousands of people ... to a new study by researchers at Brown University, missed ... why infections persist. "This is a really simple thing ...
... - A comprehensive multi-disciplinary synthesis just published in ... investigation and policy development to address significant environmental, social ... climate change. "Effects of climate change on the ... synthesis of range change prediction in a warming world" ...
... Mass. Geoscientists at the University of Massachusetts Amherst ... first evidence that warm-cold climate oscillations well known in ... also appear as tropical rainfall variations in the Amazon ... expression of these cycles in the Southern Hemisphere. ...
Cached Biology News:Many high-risk Americans don't get hepatitis B vaccine 2Many high-risk Americans don't get hepatitis B vaccine 3Climate change invites alien invaders - Is Canada ready? 2Evidence of past Southern hemisphere rainfall cycles related to Antarctic temperatures 2
(Date:7/11/2014)...  Researchers have pioneered a revolutionary new way ... called Virtual Finger, allows scientists to move through ... synapses using the flat surface of their computer ... studies orders of magnitude more efficient, saving time, ... many areas of experimental biology. The software and ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Deep ... Century Medicine Forum on ‘Commercialising Longevity Research’ and ... entrepreneurs to the London Bioscience Innovation Center for ... Foundation and Aging Analytics Ltd. The meeting highlighted ... in translational research for age-related disease, as well ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Robert Harman, DVM, ... Medicine company, is proud to announce the relaunch of his ... with a new series called “ What are Stem Cells ... an honest and straightforward foundation in the basics of stem ... decision on the right type of treatment when considering regenerative ...
(Date:7/10/2014)... Ind. , July 10, 2014 /PRNewswire/ ... its use of capnography for respiratory monitoring ... group of healthcare leaders in embracing state-of-the-art ... how effectively patients are breathing and can ... occurs. By measuring the amount of carbon ...
Breaking Biology Technology:Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 2Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2
... , , , ... when revenues aren,t growing, many organizations are looking for ways to ... these things by better managing processes and the documents that go ... applications ( http://onbase.com/English/Products ). But here,s the roadblock: budgets ...
... , THE WOODLANDS, Texas, Sept. 9 Lexicon ... focused on discovering and developing breakthrough treatments for human disease, announced today ... and chief executive officer, will present at the Morgan Stanley Global Healthcare ... on Tuesday, September 15, 2009 at 1:35 p.m. Eastern Time. ...
... England, September 9 Clinical Therapeutics,(, http://www.clinicaltherapeutics.com/ ) ... the addition of Michael G. Spigarelli, MD, PhD,to ... As section editor for the Pediatric, Adolescent, ... Research section), Dr. Spigarelli brings a wealth of ...
Cached Biology Technology:Hyland Software Provides Grant Assistance to Kick-Start Technology Projects 2Hyland Software Provides Grant Assistance to Kick-Start Technology Projects 3Hyland Software Provides Grant Assistance to Kick-Start Technology Projects 4Lexicon Pharmaceuticals to Present at the Morgan Stanley Global Healthcare Unplugged Conference 2Clinical Therapeutics Announces the Addition of Michael G. Spigarelli, MD, PhD, as Editor for a Refocused Pediatric, Adolescent, & Maternal Therapeutics Section 2
Collected from calves that are 10 days old or less. Sterile, cell culture tested, US Origin...
... Genome Amplification Kit utilizes a proprietary ... genomic DNA and conversion of the ... molecules flanked by universal priming sites. ... of the library molecules using universal ...
... DNA polymerase obtained by high level expression ... E. coli, Concentration: 5U/ul, Applications: Standard PCR ... the world leader in serving science. Thermo ... world healthier, cleaner and safer by providing ...
... Analysis of large numbers of samples may be ... which requires minimum operator attention. System ... software and interface CE 4900. The elegant, ... in Windows XP and Windows 98 and 2000., ...
Biology Products: