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Composites: Mechanics, Computations, Applications: An International Journal
ESCI SJR: 0.354 SNIP: 0.655 CiteScore™: 1.2

ISSN 印刷: 2152-2057
ISSN オンライン: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.v8.i4.40
pages 315-338

BALLISTIC IMPACT PERFORMANCE OF SMATed 304 STAINLESS STEEL AND HYBRIDIZED COMPOSITES

Yun Wan
School of Civil Engineer and Architecture, East China Jiaotong University, Changbei Open and Developing District, Nanchang, 330013, China
Gusheng Tong
School of Civil Engineer and Architecture, East China Jiaotong University, Changbei Open and Developing District, Nanchang, 330013, China
Shenshen Chen
School of Civil Engineer and Architecture, East China Jiaotong University, Changbei Open and Developing District, Nanchang, 330013, China
Xing Wei
School of Civil Engineer and Architecture, East China Jiaotong University, Changbei Open and Developing District, Nanchang, 330013, China

要約

Due to the excellent mechanical performance, much research on nanocrystalline metals has been done in recent years. Surface mechanical attrition treatment (SMAT) is an excellent method for obtaining nanocrystalline and nanotwinned ultrafine crystalline steels from coarse-grained AISI 304 stainless steel. These both appear to be suitable candidates for ballistic protection due to their outstanding mechanical properties. In this paper, the methodology of numerical simulation of the ballistic performance (limited by 600 m/s) of SMATed 304 stainless steel hybridized with a carbon fiber–epoxy composite layer is presented. Based on the Johnson–Cook flow stress model, the user's material subroutine VUMAT, and the surface-based cohesive behavior (SBCB), the simulation demonstrates not only the residual velocity and deformation, but also the damage evolution of steel layers, composite layers, and the delamination between composites and steel layers. The mechanisms of the failure of the hybrid material due to ballistic impact are very well represented. The accuracy and efficiency of our numerical methodology permits it to be used for predicting the ballistic performance and designing the structure of other hybrid materials.


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