Predicting the flow behavior of metals under different strain rate and temperature through phenomenological modeling

被引：38
作者：
Paul, Surajit Kumar [1 ]
机构：
[1] Tata Steel Ltd, R&D, Jamshedpur 831001, Bihar, India
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2012年 / 65卷
关键词：
High strain rate; Phenomenological model; Crashworthiness; Flow stress; Temperature; WIDE-RANGE; CONSTITUTIVE RELATIONS; DYNAMIC-BEHAVIOR; SHEET METALS; DEFORMATION; STEEL;
D O I：
10.1016/j.commatsci.2012.06.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A phenomenological constitutive model is represented to describe the flow behavior of metals over wide ranges of strain rates and temperatures. The novelties of proposed elasto-plastic model are: (a) precisely can predict yield stress and flow curve shape in various strain rate as both yield stress and back stress are attached with different strain rate dependent functions, (b) ability to calculate the energy absorbed during crash event as it can track stress-strain behavior correctly beyond uniform elongation. Determination of eight material constants for proposed model from experimental data is very simple and straight forward. The model predictions show a very good agreement with experimental results obtained from the literatures for a wide range of strain rates and temperatures for different steels (mild steel ES, DP600 and TRIP700 steels). (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：91 / 99
页数：9
相关论文
共 35 条
[1]  
[Anonymous], 2006, 22380 ECSC EUR EN
[2]   Finite-element and finite-difference simulations of the mechanical behavior of austenitic steels at different strain rates and temperatures [J].
Balokhonov, R. R. ;
Romanova, V. A. ;
Schmauder, S. .
MECHANICS OF MATERIALS, 2009, 41 (12) :1277-1287
[3]  
Bruce D.M., 2004, SAE 2004, V2004, P0507
[4]  
Cowper G.R., 1958, BROWN U APPL MATH RE, V28, P1
[5]   Deformation behavior of TRIP and DP steels in tension at different temperatures over a wide range of strain rates [J].
Curtze, S. ;
Kuokkala, V. -T. ;
Hokka, M. ;
Peura, P. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 507 (1-2) :124-131
[6]  
El-Magd E, 2001, Z METALLKD, V92, P1231
[7]   A CONSTITUTIVE DESCRIPTION OF THE DEFORMATION OF COPPER BASED ON THE USE OF THE MECHANICAL THRESHOLD STRESS AS AN INTERNAL STATE VARIABLE [J].
FOLLANSBEE, PS ;
KOCKS, UF .
ACTA METALLURGICA, 1988, 36 (01) :81-93
[8]  
Grey III GT, 1999, METALLURGICAL MAT A, V30, P1235
[9]   LARGE STRAIN DEFORMATION OF POLYCRYSTALLINE METALS AT LOW HOMOLOGOUS TEMPERATURES [J].
HOCKETT, JE ;
SHERBY, OD .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1975, 23 (02) :87-98
[10]  
Hokka M., 2007, SEM ANN C EXP EXP AP
1234