An experimental determination of Johnson Cook material and failure model constants for armour steel

被引：5

作者：

Banerjee, Arkadeb ^{[1
]}

Dhar, Sankar ^{[2
]}

Acharyya, Sanjib ^{[2
]}

Datta, Debasis ^{[3
]}

Nayak, Nityananda ^{[1
]}

机构：

[1] Proof & Expt Estab, Chandipur, Odisha, India

[2] Jadavpur Univ, Kolkata, India

[3] Bengal Engg Sci Univ, Howrah, W Bengal, India

来源：

DYNAMICS OF MACHINES AND MECHANISMS, INDUSTRIAL RESEARCH | 2014年 / 592-594卷

关键词：

armour steel; strain rate; triaxiality; thermal softening; Johnson - Cook material and failure models; Finite Element modelling; CONSTITUTIVE-EQUATIONS; DEFORMATION; BEHAVIOR; STRESS; METALS;

D O I：

10.4028/www.scientific.net/AMM.592-594.990

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An experimental investigation for determination of the parameters of Johnson Cook constitutive relation and the fracture model for armour steel material is reported. Tension tests on smooth and notched specimens made of armour material have been conducted at quasi-static and dynamic strain rates upto 150 s(-1) and at ambient and elevated temperatures upto 500 degrees C. The analysis of the experimental data generates the model constants that are required as inputs during numerical simulation of dynamic events like armour impact using commercial FE codes.

引用

页码：990 / +

页数：3

共 16 条

[1]

[Anonymous], 1983, 7 INT S BALL

[2] CONSTITUTIVE EQUATIONS FOR ELASTIC-VISCOPLASTIC STRAIN-HARDENING MATERIALS [J].