scholarly journals Development of Planar Tri-Axial Fatigue Testing Machine for Reproducing Arbitrary Stress States

2015 ◽  
Vol 64 (11) ◽  
pp. 887-894
Author(s):  
Takeshi INOUE ◽  
Riichi NAGAO ◽  
Norio TAKEDA
Keyword(s):  
Fatigue Testing ◽  
Testing Machine ◽  
Stress States ◽  
Axial Fatigue

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

A New Type of Adjusting Coaxiality Structure Design

2014 ◽  
Vol 983 ◽  
pp. 436-439
Author(s):  
Bao Rui Sun ◽  
Yan Zheng ◽  
Yong Zhang ◽  
Xiao Wang Fan
Keyword(s):  
Fatigue Testing ◽  
Testing Machine ◽  
Structure Design ◽  
Test Results ◽  
New Type ◽  
Concentric Structure ◽  
Axial Fatigue

This paper analyzes the factors that cause axial fatigue testing machine not coaxiality and influence on test results, put forward the axial fatigue testing machine alignment inspection, and designed a new type concentric structure to adjust not coaxiality.

3318 Statistical Fatigue Property of SUJ2 Steel in Very High Cycle Regime obtained by Multi-type Axial Fatigue Testing Machine

2006 ◽  
Vol 2006.1 (0) ◽  
pp. 465-466
Author(s):  
Tatsuo SAKAI ◽  
Ryohei TAKIZAWA ◽  
Tatsuya FURUSAWA ◽  
Masaki NAKAJIMA ◽  
Kazuaki SHIOZAWA ◽  
...  
Keyword(s):  
Fatigue Testing ◽  
Testing Machine ◽  
Fatigue Property ◽  
Very High ◽  
Axial Fatigue

On a New Rotating Bending Fatigue Testing Machine

1966 ◽  
Vol 15 (148) ◽  
pp. 49-54
Author(s):  
Minoru KAWAMOTO ◽  
Katsumi SUMIHIRO ◽  
Koji KIDA
Keyword(s):  
Fatigue Testing ◽  
Testing Machine ◽  
Bending Fatigue ◽  
Rotating Bending Fatigue ◽  
Rotating Bending

Partial Devitrification of Sintered Silicon Nitride During Static Fatigue Testing

1992 ◽  
Vol 287 ◽  
Author(s):  
W. Braue ◽  
G. D. Quinn
Keyword(s):  
Fatigue Testing ◽  
Fatigue Behavior ◽  
Slow Crack Growth ◽  
Stress Rupture ◽  
Secondary Phase ◽  
Boundary Phase ◽  
Static Fatigue ◽  
Phase Assemblage ◽  
Transmission Electron ◽  
Stress States

ABSTRACTThe static fatigue behavior of sintered Y2O3/A12O3-fluxed Si3N4 in air is controlled by slow crack growth or creep fracture. Partial devitrification of the amorphous grain boundary phase at 1000°C and 1100°C improves the static fatigue resistance with specimens surviving up to 1500 hrs. during stress rupture experiments. In this study the early stages of partial devitrification during static fatigue testing at 1000°C are investigated by conventional and analytical transmission electron microscopy with emphasis on nucleation and growth of δ-Y2Si2O7 and X1-Y2SiO5 and possible constraints from different stress states. The results show that the stress state does not affect the nature of the secondary phase assemblage. However, the amount of crystallization is higher within the tensile region of the flexural specimens than in areas which experienced compressive stresses.

Prototype of Compact Flexural Fatigue Testing Machine

2014 ◽  
Vol 554 ◽  
pp. 350-354
Author(s):  
Muhammad Azrie Husainy Mohd Jasri ◽  
Mohd Afendi ◽  
A.H.M. Fauzi
Keyword(s):  
Fatigue Failure ◽  
Electromagnetic Force ◽  
Fatigue Testing ◽  
Testing Machine ◽  
Working Environment ◽  
Motion Sensor ◽  
Flexural Fatigue ◽  
The Real ◽  
The Cost ◽  
Dynamic Fatigue

The purpose of this project is to build a prototype of compact flexural fatigue testing machine and to strive for an easy working-environment as required by the users besides cutting the cost of the machining. This particular project is about to build the prototype of compact flexural fatigue testing machine in compact mode. In this project, the prototype will be functioning 60% similar to the real fatigue machine which is Dynamic Fatigue Testing Machine (INSTRON) due to timer counter, frequency and load applied. But the new invention is this prototype was using the concept of electromagnetic force relay that will apply to the specimen using the application of basic electronics. The motion sensor also being applied to this prototype to achieve accurate results when the specimen breaks up after undergoes a fatigue failure.

Surface Durability of Spur Gears at Hertzian Stresses Over Shakedown Limit

1974 ◽  
Vol 96 (2) ◽  
pp. 359-372 ◽  
Author(s):  
Akira Ishibashi ◽  
Taku Ueno ◽  
Shigetada Tanaka
Keyword(s):  
Fatigue Testing ◽  
Testing Machine ◽  
Carbon Steels ◽  
Rolling Contact ◽  
Hertzian Contact ◽  
Load Testing ◽  
Short Period ◽  
Hertzian Contact Stress ◽  
Surface Durability ◽  
Shakedown Limit

Using a new type of gear-load testing machine and a disk-type rolling fatigue testing machine designed and made by the authors, the upper limits of Hertzian contact stress allowable on rolling contact surfaces were investigated. It was shown conclusively that gears and rollers made of soft carbon steels could be rotated beyond 108 revolutions at Hertzian stresses over shakedown limit (≈ 0.4 HB). In the case of gears, pits having a pitting area ratio of 0.04 percent occurred during 1.16 × 108 rotations at a Hertzian stress of 0.50 HB. However, no pitting occurred on the roller rotated through 1.20 × 108 revolutions at a Hertzian stress of 0.71 HB, although appreciable changes in texture were observed at the subsurface. In order to rotate gears or rollers at Hertzian stresses over shakedown limit, their surface must either be very smooth initially or after a short period of running, and an oil film must be formed between contacting surfaces.

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