Effect of mode I and II thermomechanical pre-loading on the fracture toughness of heat-resistant vessel steels

被引:0
作者
V. V. Pokrovskii
V. G. Sidyachenko
机构
[1] National Academy of Sciences of Ukraine,Pisarenko Institute of Problems of Strength
来源
Strength of Materials | 2013年 / 45卷
关键词
loading modes; thermomechanical pre-loading; heat-resistant reactor steels;
D O I
暂无
中图分类号
学科分类号
摘要
The paper presents results of experimental investigations to assess the effect of Mode I and II thermomechanical pre-loading on the crack resistance of specimens in four-point bending tests. Specimens were subjected to Mode I and II repeated loading. The investigations were carried out on heat-resistant reactor steels. An algorithm for the numerical assessment of fracture toughness with allowance for thermomechanical pre-loading under mixed loading conditions is proposed.
引用
收藏
页码:56 / 63
页数:7
相关论文
共 26 条
[1]  
Pokrovsky VV(1995)The influence of plastic prestraining on brittle fracture resistance of metallic materials with cracks Fatigue Fract. Eng. Mater. Struct. 18 731-746
[2]  
Troshchenko VT(1994)A promising method for enhancing resistance of pressure vessels to brittle fracture Int. J. Press. Vess. Piping 58 9-24
[3]  
Kopcmsky GA(1995)Calculated and experimental estimation of preliminary loading effect at elevated temperatures on fracture toughness of pressure vessel materials Int. J. Press. Vess. Piping 63 135-140
[4]  
Pokrovsky VV(1981)A theory of warm pre-stressing: experimental validation and the implication for elastic-plastic failure criteria Int. J. Fract. 17 61-82
[5]  
Troshchenko VT(2004)The effects of warm pre-stressing on cleavage fracture. Part 1: Evaluation of experiments Eng. Fract. Mech. 71 2015-2032
[6]  
Kaplunenko VG(1998)Low temperature mixed mode fracture of a pressure vessel steel subject to prior loading Eng. Fract. Mech. 61 387-405
[7]  
Timofeev BT(2007)Finite element analysis of a center crack specimen warm pre-stressed under different modes of loading Comput. Mater. Sci. 38 847-856
[8]  
Smirnov VI(2010)Assessment of brittle strength of nuclear reactor pressure vessel steel upon warm prestressing Strength Mater. 42 32-37
[9]  
Chell GG(1999)Influence of the modes of thermomechanical preloading on the resistance of heat-resistant steels to brittle fracture Strength Mater. 31 200-209
[10]  
Haigh JR(1973)On the relationship between critical tensile stress and fracture toughness in mild steel J. Mech. Phys. Solids 21 395-410