The Formation of Adiabatic Shear Band and Analysis of its Characteristics in the Process of Penetration

Jinquan Li; Sheng Xu Wang

doi:10.4028/www.scientific.net/AMR.472-475.2846

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 472-475The Formation of Adiabatic Shear Band and Analysis...

The Formation of Adiabatic Shear Band and Analysis of its Characteristics in the Process of Penetration

Abstract:

The characteristics and causes of the formation of adiabatic shear bands (ASB) in 30CrMnMo armor steel plate are analyzed by shooting 93W projectiles. The results show that adiabatic shear bands do not occur in the initial stages of the opening-crater and plugging. Adiabatic shear bands distributed sparsely appear in the stable penetrating phase because of the necessary strain volume. Adiabatic shear bands are formed along main shear stress lines at an angle of about 450 in relation to the penetrating direction. These are approximately consistent with the direction of the plastic deformation slip line. The non-homogenous deformation and centralizing of stress and strain inside the adiabatic shear band causes micro-cracks and micro-bores during cooling of the plate.

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Advanced Manufacturing Technology, ICMSE 2012

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Periodical:

Advanced Materials Research (Volumes 472-475)

Pages:

2846-2849

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.472-475.2846

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Online since:

February 2012

Authors:

Jinquan Li, Sheng Xu Wang

Keywords:

Adiabatic Shear Band (ASB), Crack, Slip Line, Stress

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