Next Article in Journal
On p-Adic Fermionic Integrals of q-Bernstein Polynomials Associated with q-Euler Numbers and Polynomials
Previous Article in Journal
A Coarse-to-Fine Approach for 3D Facial Landmarking by Using Deep Feature Fusion
Article Menu

Export Article

Open AccessArticle
Symmetry 2018, 10(8), 310; https://doi.org/10.3390/sym10080310

Rapid Evaluation and Analysis of the Deformation of Filled Cylindrical Casing with Deforming Charge Width Based on Self-Compiled MATLAB Program

College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, China
*
Author to whom correspondence should be addressed.
Received: 26 June 2018 / Revised: 17 July 2018 / Accepted: 25 July 2018 / Published: 1 August 2018

Abstract

The casing of deformable warheads warps under the action of deforming charges. The deformation profiles may be concave-, convex-, or D-shaped, but they are all symmetrical. The D-shape is considered the optimal deformation profile. The width of the deformed surface affects the number of fragments in the target area. In order to evaluate the deformable surface width of the cylindrical casing, a criterion α was established and its optimum range was determined as 20 to 30%. Based on our previous theoretical analysis, a MATLAB program that can rapidly evaluate the projectile deformation surface was compiled, which was verified using LS-DYNA and experiments. The laws influencing the deforming charge width on the deformed surface of the filled cylindrical casing were also studied using the MATLAB rapid evaluation program. As the deforming charge width increased, the deformation profile of the casing gradually transferred from “inner-concave” to the “outer-convex”. In addition, a formula that can better reflect the relationship between the deforming charge width φ and the criterion value α was fitted and verified. The conclusions obtained in this paper provide rapid guidance for the structural design of deformable warheads. View Full-Text
Keywords: symmetric structure; deformable warhead; filled cylindrical casing; deforming charge; width criterion; self-compiled MATLAB program symmetric structure; deformable warhead; filled cylindrical casing; deforming charge; width criterion; self-compiled MATLAB program
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Ding, L.; Li, Z.; Lu, F.; Li, X. Rapid Evaluation and Analysis of the Deformation of Filled Cylindrical Casing with Deforming Charge Width Based on Self-Compiled MATLAB Program. Symmetry 2018, 10, 310.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Symmetry EISSN 2073-8994 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top