Microstructure evolution of 400 MPa class rebar produced by QST and VNM technology under the high strain and low cycle fatigue

2019 ◽  
Vol 229 ◽  
pp. 116889
Author(s):  
Yukun Lv ◽  
Xuerou Zhao ◽  
Tuo Shi ◽  
Li Bai ◽  
XiuLan Liu ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
High Strain ◽  
Low Cycle Fatigue ◽  
Cycle Fatigue

scholarly journals Low cycle fatigue behavior and microstructure evolution of a novel Fe-22Cr-15Ni austenitic heat-resistant steel

2020 ◽  
Vol 9 (6) ◽  
pp. 14388-14400
Author(s):  
Lianyong Xu ◽  
Shangqing Yang ◽  
Lei Zhao ◽  
Yongdian Han ◽  
Hongyang Jing ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Resistant Steel ◽  
Cycle Fatigue ◽  
Heat Resistant Steel ◽  
Heat Resistant

Effect of strain amplitude on low cycle fatigue and microstructure evolution in Ti-6Al-4V: A TKD and TEM characterization

2019 ◽  
Vol 155 ◽  
pp. 109829 ◽  
Author(s):  
Jyoti S. Jha ◽  
Satyabrata Dhala ◽  
Suraj P. Toppo ◽  
Rajkumar Singh ◽  
Asim Tewari ◽  
...  
Keyword(s):  
Strain Amplitude ◽  
Microstructure Evolution ◽  
Low Cycle Fatigue ◽  
Cycle Fatigue ◽  
Tem Characterization

The Plastic Bending of Beams and Their Failure by Low Cycle Fatigue

1973 ◽  
Vol 95 (3) ◽  
pp. 161-169 ◽  
Author(s):  
P. K. Das ◽  
D. C. Chandler ◽  
B. K. Foster
Keyword(s):  
Large Deflection ◽  
High Strain ◽  
Low Cycle Fatigue ◽  
Rectangular Cross Section ◽  
Cyclic Strain ◽  
Cycle Fatigue ◽  
Fatigue Data ◽  
Deflection Theory ◽  
Large Deflection Theory ◽  
Bending Of Beams

The major difficulty in applying high strain fatigue data to technological problems lies not in the fatigue aspect per se but in the prediction of the cyclic strain amplitudes. In this paper they are postulated for the cyclic bending of beams using large deflection theory and taking into account the changing stress-strain relationships which occur as cycling progresses. These theories have been tested using beams of rectangular cross section made of three different materials: mild steel, stainless steel, and an aluminum alloy. Good correlation has verified their applicability.

scholarly journals Advances in the Hopkinson bar testing of irradiated/non-irradiated nuclear materials and large specimens

2014 ◽  
Vol 372 (2015) ◽  
pp. 20130197 ◽  
Author(s):  
Carlo Albertini ◽  
Ezio Cadoni ◽  
George Solomos
Keyword(s):  
Dynamic Behaviour ◽  
High Strain ◽  
Nuclear Reactors ◽  
Low Cycle Fatigue ◽  
Hopkinson Bar ◽  
Dynamic Mechanical Properties ◽  
Nuclear Materials ◽  
Cycle Fatigue ◽  
Technological Advances ◽  
Dynamic Loadings

A brief review of the technological advances of the Hopkinson bar technique in tension for the study of irradiated/non-irradiated nuclear materials and the development of this technology for large specimens is presented. Comparisons are made of the dynamic behaviour of non-irradiated and irradiated materials previously subjected to creep, low cycle fatigue and irradiation (2, 10 and 30 displacements per atom). In particular, complete results of the effect of irradiation on the dynamic mechanical properties of AISI304L steel, tested at 20, 400 and 550°C are presented. These high strain rate tests have been performed with a modified Hopkinson bar (MHB), installed inside a hot cell. Examples of testing large nuclear steel specimens with a very large Hopkinson bar are also shown. The results overall demonstrate the capability of the MHB to efficiently reproduce the material stress conditions in case of accidental internal and external dynamic loadings in nuclear reactors, thus contributing to the important process of their structural assessment.

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