Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New method developed for timely detection of impending material failure

28.08.2015

International acclaim: doctoral candidate at the University of Siegen develops new method for detecting impact damage more quickly and more accurately.

It's hailing and a small crack develops in the windscreen; it first goes unnoticed and eventually turns into a problem. This type of scenario, which usually spells annoyance and expense in the case of a car, can become dangerous when it comes to aerospace: it happens when material damage occurs as a result of brief high loads, such as those produced by a collision with a bird.


Prof. Claus-Peter Fritzen (l.) und Doktorand Daniel Ginsberg neben einem Flugzeubauteil mit Sensoren.

Universität Siegen/Björn Bowinkelmann

The high performance fibre composite materials that are used are very sensitive to these kinds of impact loads. At the University of Siegen, Daniel Ginsberg has developed a new kind of monitoring system that registers an impact load more quickly and more accurately than other methods. Ginsberg uses fewer sensors than in previous methods, which makes load monitoring significantly less expensive and more attractive in terms of possible applications.

The doctoral candidate from the University of Siegen has already won international recognition for his paper entitled "Sparse Solution Strategy for Simultaneous Localization and Magnitude Estimation of Impact Loads". At this year's International Conference on Smart Materials and Structures in Vancouver, Canada, Ginsberg received the best student paper award.

The article that was submitted gives an account of the significant interim findings of Ginsberg's doctoral thesis, which he is writing as a member of the working group directed by Siegen Professor Claus-Peter Fritzen, who co-authored the paper.

Load monitoring systems measure vibrations of the material. The vibrations can be used to reconstruct the location and intensity of an impact. This makes it possible to predict and prevent damaging after-effects, which could even include material failure.

Ginsberg's monitoring system uses a new calculation method and has applied algorithms from mathematics to the problem of force reconstruction. His method is superior to previous ones in a number of respects.

"With other methods, the location of the impact has to be known for the force reconstruction," says Ginsberg. His calculations, by contrast, reveal the location of the impact, are more accurate and more reliable, and they require fewer sensors to achieve such results.

Björn Bowinkelmann | idw - Informationsdienst Wissenschaft
Further information:
http://www.uni-siegen.de

More articles from Materials Sciences:

nachricht One in 5 materials chemistry papers may be wrong, study suggests
15.12.2017 | Georgia Institute of Technology

nachricht Scientists channel graphene to understand filtration and ion transport into cells
11.12.2017 | National Institute of Standards and Technology (NIST)

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>