Computer Model for the Solidification of Composition B.
Abstract
A computer model of an explosive compound, Composition B, solidfying in an M155 mm artillery shell is presented. Shells having been cast with the compound are frequently found with cracks seriously affecting their use. By developing a two-dimensional temperature-dependent model of the solidification process, it is hoped that some of the reasons for the crack initiation can be found. A general purpose finite element program, ADINAT, is used to evaluate the model. The properties of both the Composition B and steel shell are treated as functions of temperature, and the boundary conditions are considered to be functions of both temperature and time. While the crack initiation cannot be predicted, following the solidification front will give information towards understanding front will give information towards understanding the process. The work will establish the transient temperature distributions and solidification front motions for the various boundary conditions used. An extension of this work, to be performed later, will consider the stresses in the solidfying sheel and the residual stress state after solidification is complete. Keywords: Charts; TNT; RDX; Numerical analysis.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1985
- Accession Number
- ADA163443
Entities
People
- John D. Vasilakis
Organizations
- United States Army Armament Research, Development and Engineering Center