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 Researchers printed graphene-like materials with inkjet
18.08.2017 | Aalto University

nachricht Superconductivity research reveals potential new state of matter
17.08.2017 | DOE/Los Alamos National Laboratory

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>