Development of a high-temperature biaxial fatigue testing machine using a cruciform specimen

1999 ◽  
pp. 101-114 ◽  
Author(s):  
Takashi Ogata ◽  
Yukio Takahashi
Keyword(s):  
High Temperature ◽  
Fatigue Testing ◽  
Testing Machine ◽  
Cruciform Specimen ◽  
Biaxial Fatigue

scholarly journals Optimization Design of a Small-Sized Cruciform Specimen for Biaxial Fatigue Testing

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1148
Author(s):  
Zheng Lu ◽  
Jia-Yu Zhao ◽  
Chang-Yu Zhou ◽  
Xiao-Hua He
Keyword(s):  
Fatigue Test ◽  
Optimization Design ◽  
Fatigue Testing ◽  
Orthogonal Experiment ◽  
Testing Machine ◽  
Complex Stress State ◽  
Image Correlation ◽  
Minimum Thickness ◽  
Cruciform Specimen ◽  
Biaxial Fatigue

The in-plane biaxial specimen can well reflect the complex stress state of sheet metal. However, there is no standard for small-sized specimens used in the low-power biaxial fatigue testing machine. The main goal of this paper is to apply the finite element method and orthogonal experiment method to design the cruciform specimen, considering the influence of three main parameters including the diameter of the central semispherical thinning area, the minimum thickness of the center and the arm thickness of the specimen. According to the central strain dispersion coefficient and the strain concentration coefficient proposed in this paper, we ensured that the distribution of strain in the gauge area is uniform and the strain it at its maximum value at the same time. The optimized specimen is verified by a biaxial fatigue test with the digital image correlation (DIC) technique. It is found that the fatigue crack appears in the center region, which proves that the optimized specimen can be effectively used for biaxial fatigue test.

scholarly journals On New Axial Fatigue Testing Machine for High Temperature Tests

1959 ◽  
Vol 8 (68) ◽  
pp. 415-418
Author(s):  
Minoru KAWAMOTO ◽  
Tsuneshichi TANAKA ◽  
Yoshimasa MIKI
Keyword(s):  
High Temperature ◽  
Fatigue Testing ◽  
Testing Machine ◽  
Axial Fatigue

scholarly journals On New Fatigue Testing Machine for Combined Tension and Bending at High Temperature

1956 ◽  
Vol 5 (34) ◽  
pp. 410-414
Author(s):  
Toshio NISHIHARA ◽  
Shuji TAIRA ◽  
Kichinosuke TANAKA ◽  
Yojiro MURATA
Keyword(s):  
High Temperature ◽  
Fatigue Testing ◽  
Testing Machine

DEVELOPMENT OF AN AXIAL - TORSION BIAXIAL FATIGUE TESTING MACHINE

2015 ◽  
Author(s):  
Eleazar Cristian Mejia Sanchez ◽  
Marco Antonio Meggiolaro ◽  
Jaime Tupiassú Pinho de Castro
Keyword(s):  
Fatigue Testing ◽  
Testing Machine ◽  
Axial Torsion ◽  
Biaxial Fatigue

Micromechanical Study on High-Temperature Behavior of ZrO2 Particle-Dispersed Ni Composites

2007 ◽  
Vol 340-341 ◽  
pp. 95-100 ◽  
Author(s):  
Hideaki Tsukamoto ◽  
Andrei G. Kotousov
Keyword(s):  
High Temperature ◽  
Creep Behavior ◽  
Fatigue Testing ◽  
Testing Machine ◽  
Temperature Behavior ◽  
Laser Sensor ◽  
Compression Tests ◽  
Creep Tests ◽  
Zro2 Particle ◽  
High Temperature Behavior

This paper aims to investigate high temperature behavior of ZrO2 particle-dispersed Ni composites. The tension-compression tests under constant stress rates as well as creep tests including stress-dip tests were performed using a high-temperature material testing set up, which consists of an electric-hydraulic fatigue testing machine, electric furnace and extensometer with a laser sensor. ZrO2 particle-dispersed Ni composites were fabricated by using the powder metallurgical methods. The results obtained from the experimental study show that ZrO2 particles remarkably strengthen the composite and there exists a reasonable correlation between the tensioncompression stress-strain relation and the creep behavior. In addition, the creep behavior has been examined based on the micromechanical concept, which takes into account the diffusional mass flow at the interface between the particles and matrix. Some numerical analysis based on this concept demonstrates that even a little amount of ZrO2 particles can effectively increase the creep resistance of the composites

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