HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Engineering Materials

Aerospace-Grade Composites Will Repair Themselves

NO RATINGS
1 saves
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/4  >  >>
Ann R. Thryft
User Rank
Blogger
Re: Self healing process
Ann R. Thryft   5/27/2014 1:20:00 PM
NO RATINGS
Mydesign, I totally agree.

Mydesign
User Rank
Platinum
Re: Self healing process
Mydesign   5/23/2014 5:35:03 AM
NO RATINGS
1 saves
"a much wider operating temperature range is also needed in space, and also in military environments. OTOH, notice where the funding comes from: three different military-related sources, so you can bet they expect an ROI."

Ann, you are right. Wait and see is my answer for the second part.

Ann R. Thryft
User Rank
Blogger
Re: Self healing process
Ann R. Thryft   5/22/2014 1:28:48 PM
NO RATINGS
J. Lombard, thanks for your thoughtful and thorough comments. I had the same initial thought about repairing the matrix layers vs the fibers within them: this may work for delam issues but what about breaks in fibers? OTOH, as the authors say in their article's introduction, delam problems are among the most common, hardest to detect, and most difficult to repair, and these problems are at the top of the list for why composites haven't been adopted more widely for structural components. That's one of the main reasons why the researchers tackled these issues first.
Some of your other questions may be answered by the article itself. (Hint: a free copy is located on the website of one of the team's leaders: http://sottosgroup.beckman.illinois.edu)



Ann R. Thryft
User Rank
Blogger
Re: Self healing process
Ann R. Thryft   5/21/2014 12:55:03 PM
NO RATINGS
That's a good point, Mydesgn--a much wider operating temperature range is also needed in space, and also in military environments. OTOH, notice where the funding comes from: three different military-related sources, so you can bet they expect an ROI.

fdos
User Rank
Iron
Re: Self healing process
fdos   5/19/2014 6:16:23 AM
NO RATINGS
@Elizabeth: Anyway taking short cust at this juncture is too risky. 

Elizabeth M
User Rank
Blogger
Re: Self healing process
Elizabeth M   5/19/2014 5:59:50 AM
NO RATINGS
Well that's good to know, Ann. This type of use is too critical to take any shortcuts!

Mydesign
User Rank
Platinum
Re: Self healing process
Mydesign   5/19/2014 2:46:00 AM
NO RATINGS
1 saves
"Materials used in spacecraft, however, must withstand a lot more than those used in commercial planes, such as meteor strikes and radiation. This type of self-repair system might not do so well in spacecraft unless it was redesigned to accommodate those specific needs. Similar issues apply for use in military applications."

Ann, you are right and apart from that heat is also a major issue when the flight moves across different atmospheric level.

Ann R. Thryft
User Rank
Blogger
Re: Self healing process
Ann R. Thryft   5/16/2014 12:16:47 PM
NO RATINGS
Mydesign, there are definitely problems repairing fiber-reinforced composites in both aircraft and spacecraft -- because of the material's failure charactertistics and because of access issues -- and this material could be potentially used for both applications. Materials used in spacecraft, however, must withstand a lot more than those used in commercial planes, such as meteor strikes and radiation. This type of self-repair system might not do so well in spacecraft unless it was redesigned to accommodate those specific needs. Similar issues apply for use in military applications.



Ann R. Thryft
User Rank
Blogger
Re: Self healing process
Ann R. Thryft   5/16/2014 11:37:15 AM
NO RATINGS
fdos, this is a commercial aerospace-grade composite, meaning it's aimed at commercial aircraft, not military aircraft or any other military vehicles. Materials made to withstand missiles, bullets, etc. are made to a different set of standards.

Mydesign
User Rank
Platinum
Re: Self healing process
Mydesign   5/16/2014 1:03:39 AM
NO RATINGS
1 saves
"New generation large aircraft are designed with all composite fuselage and wing structures, and the repair of these advanced composite materials requires an in-depth knowledge of composite structures, materials, and tooling. The primary advantages of composite materials are their high strength, relatively low weight, and corrosion"

Bmoray, you are right about composite material.

<<  <  Page 2/4  >  >>
Partner Zone
More Blogs from Engineering Materials
Why would the biggest connector company in the world design and build the first fully functional 3D-printed motorcycle? To show TE Connectivity's engineers what the technology can really do in making working load-bearing production parts, and free up their thinking when approaching design problems.
In his keynote address at the RAPID 2015 conference last week, Made In Space CTO Jason Dunn gave an update on how far his company and co-development partner NASA have come in their quest to bring 3D printing to the space station -- and beyond.
Here are new recycled materials, new recycling machines, and other news about recycling 3D printed materials we've put together in one place.
A composite based on a high-performance PEEK-like resin we told you about two years ago when it was still in R&D has now been licensed by the US Naval Research Laboratory (NRL) for commercial manufacturing.
Hospital-acquired infections and more home use of medical devices are shaking up device design, bringing more plastics into increasingly complex designs.
Design News Webinar Series
5/21/2015 11:00 a.m. California / 2:00 p.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
6/3/2015 8:00 a.m. California / 11:00 a.m. New York
6/11/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jun 8 - 12, Everything You Ever Wanted to Know about Filters
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Course June 2nd-4th:
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service