All Categories : Technical White Papers : CAE and FEA Bookmark and Share

Title : Novel Approach to Conducting Blast Load Analyses Using Abaqus/Explicit-CEL
Company : SIMULIA
File Name : novel-approach-conducting-blast-load-analyses-2010.pdf
Size : 26437
Type : application/pdf
Date : 09-Jul-2011
Downloads : 1

Rate This File
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

A new method is introduced for conducting blast load analyses using the new Coupled-Eulerian-Lagrangian (CEL) capability of Abaqus/Explicit. In the past, either a 1-D blast code or tabular data was used to determine a pressure vs. time curve that would be applied to the exterior surfaces that were assumed to interact with the blast wave. These pressure curves were generated using knowledge of the amount/type of explosive and line-of-sight distance away from the explosion. While this method remains valid, with increasingly complex structural geometry, oblique surfaces, and with corners facing the blast, the amount of overhead required to analytically determine the necessary pressure loading for each of the various surfaces becomes exhaustive. This new approach involves surrounding the structure with a body of air (Eulerian), imparting a blast (pressure) wave as a boundary condition into the body of air, and then having it propagate into the Lagrangian structure. The Lagrangian structure can be positioned arbitrarily within the Eulerian domain to achieve any angle of incidence that is desired. This new method negates the need to determine reflected pressures for oblique surfaces a priori. This approach remains to be validated against test data (impulse-momentum traps) but thus far the results look promising.
User Reviews More Reviews Review This File
SolidCAM: Program your CNCs directly inside your existing CAD system.


Featured Video
Editorial
Jeff RoweJeff's MCAD Blogging
by Jeff Rowe
Re-Use Your CAD: The ModelCHECK Handbook
Jobs
Senior Structural Engineer for Design Everest at San Francisco, CA
GIS Analyst II for Air Worldwide at Boston, MA
Business Partner Manager for Cityworks - Azteca Systems, LLC at Sandy, UT
Upcoming Events
Design & Manufacturing, Feb 7 - 9, 2017 Anaheim Convention Center, Anaheim, CA at Anaheim Convention Center Anaheim CA - Feb 7 - 9, 2017
Innorobo 2017 at Docks de Paris Paris France - May 16 - 18, 2017
Display Week 2017 at Los Angeles Convention Center 1201 S Figueroa St Los Angeles CA - May 21 - 26, 2017



Internet Business Systems © 2016 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy Advertise