Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Testing the force of a shark's bite

02.08.2007
Scientists are building a three dimensional computer model to test the ‘bite force’ of the Great White shark using data from a shark caught in beach nets off the NSW Central Coast.

The 2.4 metre long Great White shark was stored at the NSW Department of Primary Industries’ Cronulla Fisheries Research Centre of Excellence until researchers were ready to analyse its jaw and facial muscles this week.

A collaborative project involving NSW DPI, the Universities of NSW, Newcastle and Tampa, Florida, and led by Dr Stephen Wroe aims to reveal the cranial mechanics, bite force and feeding behaviour in the Great White Shark using high resolution 3-D computer simulations.

This week Dr Wroe and his team are dissecting the five year old shark and measuring the structure of its jaw and the muscles used in biting.

Underwater experiments with live sharks fail to adequately indicate the force of the Great White’s bite, and the sharks have been known to bite through materials that require much greater force than that so far observed in situ.

According to NSW DPI shark scientist, Denis Reid, sharks generally test bite before applying a full-force bite.

"The test bite has much less force", he said.

The approach being taken in this project involves determining the maximum forces that Great Whites can exert using advanced mathematical and computing methods that were originally developed for the calculation of stresses in structures such as bridges.

The collaborating investigator in the project for NSW DPI, Dr Michael Lowry, said one of the project aims is to identify the shark species responsible for damage to submarine cables and towed arrays.

"Measurement of bite forces will help in testing and developing materials suitable for cabling and sensory equipment used in the marine environment."

US shark biologist Dan Huber is working with the Australian team to learn whether sharks such as the Great White are responsible for damaging submarine cables and communication systems on US Navy submarines.

Dr Huber’s team has experimented with protective materials including Kevlar fibres as a means of protecting cables and arrays from attacks from marine life. See http://luna.cas.usf.edu/~motta/fishbite.html

Dr Wroe, from the University of NSW, is an expert on carnivore evolution who has helped pioneer new techniques that reveal the feeding habits of flesh-eating animals such as the Sabre-toothed tiger, African lion, marsupial lion and Tasmanian tiger.

NSW DPI contact: Dr Michael Lowry, (02) 9527 8407, michael.lowry@dpi.nsw.gov.au

Joanne Finlay | EurekAlert!
Further information:
http://www.compbiomech.com/
http://www.bees.unsw.edu.au/school/researchstaff/wroe/wroeresearch.html
http://luna.cas.usf.edu/~motta/fishbite.html

More articles from Information Technology:

nachricht Five developments for improved data exploitation
19.04.2017 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

nachricht Smart Manual Workstations Deliver More Flexible Production
04.04.2017 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

NASA's Fermi catches gamma-ray flashes from tropical storms

25.04.2017 | Physics and Astronomy

Researchers invent process to make sustainable rubber, plastics

25.04.2017 | Materials Sciences

Transfecting cells gently – the LZH presents a GNOME prototype at the Labvolution 2017

25.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>