Papers by Keyword: Face-Centered Cubic

Abstract: The face-centered cubic model is used to investigate the dynamic crushing behavior of high density closed-cell foams. The influences of the constant loading rate and the specimen aspect ratio on the crushing stress were discussed. It is demonstrated that the crushing stress is more sensitive to the constant loading rate than the specimen aspect ratio. To describe the dynamic crushing behavior of the foam theoretically, the idealized rigid-perfectly plastic-locking (RPPL) stress-strain model is extended to a more general case, in which both the density and the cross-section area are discontinuous. The good agreement between the finite element results and theoretical results confirms that the dynamic crushing behavior of foam can be described by the modified RPPL stress-strain model.

Abstract: Theories of the pencil glide theory for bcc metal and MPG(modified pencil glide) theory for fcc metal are reviewed. Interest is focused to both analogy and difference in derivation of the theories. Some visualization figures using them are introduced. At last, it is informed that the authors have opened both the bcc pencil glide theory and MPG(fcc) theory on website publication which calls everybody to look and download the fundamentals, applications, visualization , procedure of calculation and C program for calculation for the both pencil glide theories.