Featured Research

from universities, journals, and other organizations

Livermore Engineers Use Computer Simulations To Illustrate Impacts Of Bomb Blasts On Infrastructure

Date:
February 17, 2003
Source:
University Of California - Berkeley
Summary:
Using advanced computing capabilities, engineers from the Lawrence Livermore National Laboratory will illustrate some of the issues that arise when mitigating the effects of bomb blast on the constructed environment.

DENVER, Colo. — Using advanced computing capabilities, engineers from the Lawrence Livermore National Laboratory will illustrate some of the issues that arise when mitigating the effects of bomb blast on the constructed environment.

Related Articles


Since the attacks on the World Trade Center, the Pentagon and at major U.S. embassies and military facilities abroad, the nation’s bridges, buildings and dams are considered desirable targets for terrorists intent on creating maximum damage and numerous deaths.

Today at the American Association for the Advancement of Science 2003 Annual Meeting in Denver, Colo., Livermore engineers will highlight advanced computer simulations performed at LLNL and the U.S. Army Engineering Research and Development Center. Such simulations can be used to examine the performance of representative structures under blast loadings and explore design alternatives. These regimes of behavior are quite different from those associated with more typical design requirements such as an earthquake.

The simulation technologies employed were originally developed within the Department of Energy’s Defense Programs activities at LLNL and Sandia National Laboratories. Some of these technologies have already found wide acceptance in non-defense uses, such as for crash safety simulation in the automotive industry. Engineer David McCallen of Livermore’s Laser Science Engineering division and colleagues have constructed computer simulations to show what could happen to buildings and dams if someone used conventional explosives. Robert Ferencz of the Laboratory’s Defense Technologies Engineering division represents the group that created the structural dynamics modeling code used in these studies.

“Addressing these technology areas will require research efforts in both component and full-scale experimental testing complemented by computer simulations,” McCallen said. “We can now computationally model the complex nonlinear response of structures up to collapse levels.”

Ferencz, who will participate in the AAAS session titled “Security for Life: The Science Behind Security Technologies” at 2:30 p.m. MST, noted that blast resistance already is a design criteria for some critical structures. Ferencz and McCallen are interested in how to distribute these capabilities more broadly across our infrastructure. Ferencz will discuss three principal areas:

The complexity of simulating the interaction of a blast wave with a specific type of structure, which crosscuts both physics and engineering disciplines.

Development of effective blast resistant designs for new critical structures that may require engineers to think about structural designs in new ways for this unique loading case.

Development of retrofit methodologies for increasing the blast resistance of existing structures.

Advanced computer simulations can play a key role in homeland security when the understanding gained from combined simulations and field test experiments is used to develop improved blast-resistant design guidance for the broader community of structural engineers.

###

Founded in 1952, Lawrence Livermore National Laboratory is a national security laboratory, with a mission to ensure national security and apply science and technology to the important issues of our time. Lawrence Livermore National Laboratory is managed by the University of California for the U.S. Department of Energy's National Nuclear Security Administration.


Story Source:

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


Cite This Page:

University Of California - Berkeley. "Livermore Engineers Use Computer Simulations To Illustrate Impacts Of Bomb Blasts On Infrastructure." ScienceDaily. ScienceDaily, 17 February 2003. <www.sciencedaily.com/releases/2003/02/030217115249.htm>.
University Of California - Berkeley. (2003, February 17). Livermore Engineers Use Computer Simulations To Illustrate Impacts Of Bomb Blasts On Infrastructure. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2003/02/030217115249.htm
University Of California - Berkeley. "Livermore Engineers Use Computer Simulations To Illustrate Impacts Of Bomb Blasts On Infrastructure." ScienceDaily. www.sciencedaily.com/releases/2003/02/030217115249.htm (accessed October 25, 2014).

Share This



More Matter & Energy News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
Real-Life Transformer Robot Walks, Then Folds Into a Car

Real-Life Transformer Robot Walks, Then Folds Into a Car

Buzz60 (Oct. 24, 2014) — Brave Robotics and Asratec teamed with original Transformers toy company Tomy to create a functional 5-foot-tall humanoid robot that can march and fold itself into a 3-foot-long sports car. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Police Testing New Gunfire Tracking Technology

Police Testing New Gunfire Tracking Technology

AP (Oct. 24, 2014) — A California-based startup has designed new law enforcement technology that aims to automatically alert dispatch when an officer's gun is unholstered and fired. Two law enforcement agencies are currently testing the technology. (Oct. 24) Video provided by AP
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:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

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