On the identification of stress-strain relation by instrumented indentation with spherical indenter

被引：30
|
作者：
Hausild, Petr [1 ]
Materna, Ales [1 ]
Nohava, Jiri [2 ]
机构：
[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Dept Mat, Prague 12000 2, Czech Republic
[2] CSM Instruments, CH-2034 Peseux, Switzerland
来源：
MATERIALS & DESIGN | 2012年 / 37卷
关键词：
E; Mechanical; F. Plastic behavior; AUSTENITIC STEEL; DELAYED CRACKING; ELASTIC-MODULUS; HARDNESS; MARTENSITE; CURVE; LOAD;
D O I：
10.1016/j.matdes.2012.01.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The local stress-strain relations were characterized by instrumented indentation with spherical indenter. The results obtained by indentation with different indenter radii were compared with tensile stress-strain curves of two metastable austenitic stainless steels (grade A301 and A304) and analyzed using finite element model. A forward finite element analysis was also carried out with model material behavior (elastic-perfectly plastic, linear hardening, piece-wise linear hardening and power-law hardening). The limitations of identified stress-strain relations arising from the indenter shape, uneven contact and non-linear material behavior due to the deformation induced martensitic transformation are discussed. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：373 / 378
页数：6
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