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

Title : Impact Analysis and Dynamic Response of a 40mm Sensor Grenade
Company : SIMULIA
File Name : impact-analysis-dynamic-response-40mm-sensor-gren-2009.pdf
Size : 24141
Type : application/pdf
Date : 09-Jul-2011
Downloads : 1

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

The Army is developing new grenades with sensors instead of explosives. A grid of 40-mm grenades will be fired from conventional M16 rifles. The projectiles must survive gun launch and impact. After impact, soldiers will get a real-time ‘picture’ of a local area. Signals from the onboard sensors will be processed on a hand-held computer that captures the activity within the grenade web. The grenades need to operate after they impact different types of structures. The payload contains sensitive electronics. Due to the nature of the electronics, most of the grenade structure is nonmetallic to prevent attenuation of the signals. Impact energy must be absorbed by the ogive/nose section of the projectile. Different designs were evaluated to determine the g-loads exerted on the electronics and the reflected velocity of the grenade. A steel plate was used as the base-line impact structure. Results were compared for crushable polymer foams, crushable metal foams, and collapsible polymer structures. These analyses were completed using ABAQUS Explicit, a general-purpose finite element code. Collapsible polymer structures provided the smallest gforces to the electronics and the smallest reflected velocities after impact.
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
Siemens Goes ECAD With Mentor Graphics Acquisition
Jobs
Mechanical Engineer for IDEX Corporation at West Jordan,, UT
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