Featured Research

from universities, journals, and other organizations

World's Fastest Camera Helps Researcher Study How Things Break Apart

Date:
September 6, 2000
Source:
University Of Rhode Island
Summary:
With the ability to take pictures at a speed of 200 million frames per second, Arun Shukla's high-speed camera can make even the fastest moving objects look like they are standing still. In an effort to assist the military and a variety of industries, he is using this one-of-a-kind technology to study how things break apart.

KINGSTON, R.I. -- August 7, 2000 -- With the ability to take pictures at a speed of 200 million frames per second, Arun Shukla's high-speed camera can make even the fastest moving objects look like they are standing still. In an effort to assist the military and a variety of industries, he is using this one-of-a-kind technology to study how things break apart.

"With this camera we can freeze the motion of anything that happens quickly," explained Shukla, distinguished professor of mechanical engineering at the University of Rhode Island and director of URI's Dynamic Photomechanics Lab. "It opens up a lot of possibilities for innovative research."

The camera was purchased through a $457,000 Major Research Instrumentation Grant from the National Science Foundation.

Shukla's primary focus is on studying catastrophic, rapid failures of structures, body armor, and other materials. He wants to know how these materials break apart, how much force it takes to break them, and how the materials can be improved so they can sustain even greater force before breaking up.

For example, Shukla is conducting ballistic studies for the U.S. Army on Kevlar body armor to improve the performance of bullet-proof vests.

"By evaluating how the material reacts when it is impacted by a bullet, we may be able to modify the geometric shape of the Kevlar and make it stronger," said Shukla. He believes that armor made with ridges on it is stronger than a flat piece of ceramic-backed kevlar. "Without the camera, we wouldn't be able to determine which shape is best."

He is also working with the U.S. Air Force to analyze how granite and concrete resist penetration from multiple impacts. According to Shukla, the Air Force is interested in this information to better understand the strength of underground bunkers, although the information is also of interest to the oil and gas exploration industry.

In addition to learning how things break apart, Shukla also uses the camera in the development of composite materials that are stronger or lighter weight than those currently in use.

By mixing concrete with cenospheres -- hollow, ceramic microballoons that are a byproduct of burning coal -- the concrete becomes considerably lighter. If he can develop a way of improving the bond between the concrete and the cenospheres, the lightweight concrete will be as strong, or stronger, than regular concrete. This work is being done under the auspices of the URI Transportation Research Center.

"We use the camera to analyze the fractures that occur between the materials under high load conditions," explained Shukla. "Once we understand how the fractures occur, we should be able to develop a better bond between the concrete and the cenospheres." Shukla began his studies of fracture mechanics using a camera he built himself in 1982.

"That first camera, which we still use, takes pictures at 800,000 frames per second, but it was very large and required 30,000 volts of electricity to operate, so some experiments took several days to complete. With the new portable camera we can do eight or ten experiments a day, and we can analyze the results immediately."

Shukla sees unlimited potential for the new camera, and he is open to inquiries from researchers throughout the region. He suggested that oceanographers or the Navy may be interested in using the camera to evaluate how torpedoes damage ships or to evaluate new materials and materials systems for use in emerging ship designs. He also believes forensic scientists could use it to analyze how bombs explode.

"The camera can do amazing things," he said. "There are probably lots of people who could find a use for it."


Story Source:

The above story is based on materials provided by University Of Rhode Island. Note: Materials may be edited for content and length.


Cite This Page:

University Of Rhode Island. "World's Fastest Camera Helps Researcher Study How Things Break Apart." ScienceDaily. ScienceDaily, 6 September 2000. <www.sciencedaily.com/releases/2000/09/000904130735.htm>.
University Of Rhode Island. (2000, September 6). World's Fastest Camera Helps Researcher Study How Things Break Apart. ScienceDaily. Retrieved August 29, 2014 from www.sciencedaily.com/releases/2000/09/000904130735.htm
University Of Rhode Island. "World's Fastest Camera Helps Researcher Study How Things Break Apart." ScienceDaily. www.sciencedaily.com/releases/2000/09/000904130735.htm (accessed August 29, 2014).

Share This




More Matter & Energy News

Friday, August 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Australian Airlines Relax Phone Ban Too

Australian Airlines Relax Phone Ban Too

Reuters - Business Video Online (Aug. 26, 2014) Qantas and Virgin say passengers can use their smartphones and tablets throughout flights after a regulator relaxed a ban on electronic devices during take-off and landing. As Hayley Platt reports the move comes as the two domestic rivals are expected to post annual net losses later this week. Video provided by Reuters
Powered by NewsLook.com
Hurricane Marie Brings Big Waves to California Coast

Hurricane Marie Brings Big Waves to California Coast

Reuters - US Online Video (Aug. 26, 2014) Huge waves generated by Hurricane Marie hit the Southern California coast. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Chinese Researchers Might Be Creating Supersonic Submarine

Chinese Researchers Might Be Creating Supersonic Submarine

Newsy (Aug. 26, 2014) Chinese researchers have expanded on Cold War-era tech and are closer to building a submarine that could reach the speed of sound. Video provided by Newsy
Powered by NewsLook.com
Breakingviews: India Coal Strained by Supreme Court Ruling

Breakingviews: India Coal Strained by Supreme Court Ruling

Reuters - Business Video Online (Aug. 26, 2014) An acute coal shortage is likely to be aggravated as India's supreme court declared government coal allocations illegal, says Breakingviews' Peter Thal Larsen. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins