Implants for surgery. Mechanical testing of implantable spinal devices. Fatigue test method for spinal implant assemblies using an anterior support

2015 ◽  
Keyword(s):  
Mechanical Testing ◽  
Fatigue Test ◽  
Test Method ◽  
Spinal Implant ◽  
Anterior Support

A Rapid Fatigue Test Method on Micro Structures for High-Cycle Fatigue

2016 ◽  
Vol 16 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Yi-Chueh Shieh ◽  
Hsuan-Yu Lin ◽  
Wensyang Hsu ◽  
Yu-Hsin Lin
Keyword(s):  
Fatigue Test ◽  
High Cycle Fatigue ◽  
Test Method ◽  
Cycle Fatigue ◽  
Micro Structures

Evaluation of cord/rubber adhesion by a new fatigue test method

2006 ◽  
Vol 101 (4) ◽  
pp. 2488-2494 ◽  
Author(s):  
M. Jamshidi ◽  
F. Afshar ◽  
B. Shamayeli
Keyword(s):  
Fatigue Test ◽  
Test Method

Test Method of the εrms-N Curves of Laminated Composite Beams

2008 ◽  
Vol 44-46 ◽  
pp. 311-316
Author(s):  
Chuang Shao ◽  
Sen Ge ◽  
Hua Tao ◽  
Claude Bathias
Keyword(s):  
Resonance Frequency ◽  
Fatigue Test ◽  
Laminated Composite ◽  
Test Method ◽  
Cantilever Beams ◽  
Test Results ◽  
Vibration Fatigue ◽  
The Difference ◽  
Double Cantilever Beams ◽  
Laminated Composite Beams

Two kinds of beam specimens made of composite laminated panel were designed and used to do vibration fatigue test for ε-N curves. the shapes of various simulated joint configurations for the specimens were adopted in order to get the accurate results. They were two kinds of double-cantilever beams supplied by T-mode stiffener and L-mode stiffener. All beam specimens were tested under the same shape of narrowband spectrum and the several loadings of random vibration by shaker excitation. The bandwidth of the narrowband random spectrum was 1/3 octave bandwidth whose centre frequency was the first resonance frequency of the cantilever beam, so that it reduced influences of the difference of specimens resonance frequency. Fitting vibration fatigue test results, the ε-N curves would be obtained then. The vibration test shows that this method of getting ε-N vibration curve is feasible. It can be used in practice.

Research on Fatigue Test of LZ20Mn2 Axle Pipe Steel

2010 ◽  
Vol 44-47 ◽  
pp. 2152-2156
Author(s):  
Hong Lei Dong ◽  
Zhong Guo Huang ◽  
Qing Hua Yuan ◽  
Jia Fan
Keyword(s):  
Crack Initiation ◽  
Fatigue Test ◽  
Pipe Steel ◽  
Test Method ◽  
Fatigue Properties ◽  
Dog Bone ◽  
Slow Decline ◽  
Ultrasonic Fatigue ◽  
Dislocation Crack ◽  
Closure Effect

The core of ultrasonic accelerate fatigue test is resonance, and specimens need resonating with the system. The ultrasonic fatigue test method was used to investigate the high cycle fatigue properties of LZ20Mn2 axle pipe steel. Tests were conducted on cylindrical dog-bone specimens, and all fatigue loadings were controlled by inputting vibration amplitude. The results showed that the S-N curve of LZ20Mn2 axle pipe steel presented a slow-decline shape and subsurface crack initiation. The fatigue fracture was observed by SEM. Two different crack initiation mechanisms were observed which were the mixed inclusions and dislocation. Crack closure effect played an important role at fatigue crack propagation area and the fracture mechanism was a typical plastic fracture.

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