Open AccessSimulation of the SRI International test Gun-27 using the PAGOSA code
Author(s) -
Joseph Jacoby
Publication year - 1997
Language(s) - English
Resource type - Reports
DOI - 10.2172/522211
Subject(s) - fracture (geology) , enhanced data rates for gsm evolution , code (set theory) , structural engineering , diaphragm (acoustics) , set (abstract data type) , engineering , computer science , artificial intelligence , geotechnical engineering , programming language , electrical engineering , loudspeaker
SRI International conducted a set of impact tests with flat disks hitting water-filled chemical submunitions. One of these tests, called Gun-27, involved a 595 gram disk hitting the side of a submunition at 200 m/s. This test was simulated using the PAGOSA code with a materials model that was a good overall match to the data, and with a sequence of five mesh sizes. It was found that when a mesh was used which had at least five cells across the wall of the submunition, PAGOSA was able to provide reasonably satisfactory agreement with the test results, except for the partial fracture of a welded joint. One feature of the test that was reproduced very well by the simulation that used the finest mesh was the fracture of the diaphragm around its edge. Results are compared for all five simulations so that trends can be seen