Fatigue behavior and damage mechanism of carbon/carbon composites: a review

2013 ◽  
Vol 9 (2) ◽  
pp. 284-288 ◽  
Author(s):  
Xi Yang ◽  
Hejun Li ◽  
Shouyang Zhang ◽  
Kuahai Yu ◽  
Zhi Wang
Keyword(s):  
Fatigue Behavior ◽  
Damage Mechanism ◽  
Carbon Composites

Investigation on ratcheting-fatigue behavior and damage mechanism of GH4169 at 650 ℃

2019 ◽  
Vol 743 ◽  
pp. 314-321 ◽  
Author(s):  
Y.M. Liu ◽  
L. Wang ◽  
G. Chen ◽  
B.B. Li ◽  
X.H. Wang
Keyword(s):  
Fatigue Behavior ◽  
Damage Mechanism

Thermomechanical Damage Development in SiC(SCS6)/Ti-6-4 Metal Matrix Composite

1992 ◽  
Author(s):  
S. Aksoy
Keyword(s):  
Fatigue Behavior ◽  
High Stress ◽  
Damage Mechanism ◽  
Material Behavior ◽  
Effect Of Temperature ◽  
Damage Development ◽  
Element Analysis ◽  
Mechanical Cycling ◽  
Single Temperature ◽  
Thermomechanical Damage

A series of experiments were conducted to investigate the thermomechanical fatigue behavior of SiC(SCS-6)/Ti-6-4 composite. Three types of tests were conducted. In the first, specimens were subjected to load-controlled mechanical cycling under isothermal conditions. The other two types of test involved simultaneous cycling of load and temperature: in-phase and out-of-phase cycles. The effect of temperature cyclic ranges of 250°C to 528°C were evaluated for the out-of-phase (low temperature-high stress) conditions. A single temperature range of 250°C was employed for the in-phase (high temperature-high stress) condition. Fatigue-life diagrams were developed to evaluate the fatigue performance of the composite based on certain damage mechanism maps. In addition, micromechanical stresses in the fiber and matrix were computed using a generalized plane strain finite element analysis. The intention of this analytical effort was to provide the understanding of the fundamental mechanisms governing material behavior for guiding the development of life prediction methodology.

Fully Reversed Electric Fatigue Behavior of a Piezoelectric Composite Actuator

2008 ◽  
Author(s):  
Sung-Choong Woo ◽  
Nam Seo Goo
Keyword(s):  
Fatigue Damage ◽  
Fatigue Behavior ◽  
Damage Mechanism ◽  
Ceramic Layer ◽  
Piezoelectric Composite ◽  
Transgranular Fracture ◽  
Intergranular Cracking ◽  
Composite Actuator ◽  
Electric Fatigue ◽  
Pzt Ceramic

The aim of this study is to investigate fully reversed electric fatigue behavior of a piezoelectric composite actuator (PCA). For that purpose, fatigue tests with different loading conditions have been conducted and the performance degradation has been monitored. During a preset number of loading cycles, non-destructive acoustic emission (AE) tests were used for monitoring the damage evolution in real time. The displacement-cycle curves were obtained in fully reversed cyclic bending loading. The microstructures and fracture surfaces of PCA were examined to reveal their fatigue damage mechanism. The results indicated that the AE technique was applicable to fatigue damage assessment in the piezoelectric composite actuator. It was shown that the initial damage mechanism of PCAs under fully reversed electric cyclic loading originated from the transgranular fracture in the PZT ceramic layer; with increasing cycles, local intergranular cracking initiated and the either developed onto the surface of the PZT ceramic layer or propagated into the internal layer, which were some different depending on the drive frequencies and the lay-up sequence of the PCA.

Study on the Fatigue Behavior of Carbon/Carbon Composites

2008 ◽  
Vol 385-387 ◽  
pp. 537-540 ◽  
Author(s):  
Xiao Ling Liao ◽  
Wen Feng Xu ◽  
Zhi Qiang Gao
Keyword(s):  
High Temperature ◽  
Fatigue Behavior ◽  
Fatigue Loading ◽  
Structural Materials ◽  
Carbon Composites ◽  
Made In ◽  
The Ideal

As the ideal candidates for high temperature structural materials, carbon/carbon (C/C) composites are no doubt involved in fatigue loading. Therefore, the study on fatigue behavior is meaningful. In this paper, the research on fatigue behavior of C/C composites was reviewed and the characteristic of fatigue behavior was summarized. Some viewpoints for further investigations for the study on the fatigue behavior of C/C composites are also made in this paper.

524 Effect of Density on Contact Fatigue Behavior and Damage Mechanism of Sintered Alloys

2001 ◽  
Vol 2001.9 (0) ◽  
pp. 409-410
Author(s):  
Makoto HORIKOSHI ◽  
Yukio MIYASHITA ◽  
Rajapa Gnanamoorthy ◽  
Jin-Quan XU ◽  
Yoshiharu MUTOH ◽  
...  
Keyword(s):  
Fatigue Behavior ◽  
Contact Fatigue ◽  
Damage Mechanism ◽  
Sintered Alloys

Continuous damage-based Voronoi finite element analysis of contact fatigue of a wind turbine gear

2019 ◽  
Vol 233 (10) ◽  
pp. 1483-1495
Author(s):  
Peitang Wei ◽  
Huaiju Liu ◽  
Caichao Zhu ◽  
Haifeng He
Keyword(s):  
Finite Element ◽  
Wind Turbine ◽  
Mechanical Response ◽  
Fatigue Behavior ◽  
Maximum Shear Stress ◽  
Contact Fatigue ◽  
Damage Mechanism ◽  
Mechanical Transmission ◽  
Element Analysis ◽  
Gear Contact

Contact fatigue failures of gears, especially those used in heavy duty conditions such as wind turbine gears, become important issues in mechanical transmission industry. In the present work, a continuous damage mechanism and Voronoi-based finite element model is developed to investigate the contact fatigue of a wind turbine gear. Plane strain assumption is adopted to simplify the gear contact model. Voronoi tessellations are utilized to represent the microstructure topology of the gear material, and continuous damage mechanism is implemented to reflect the material degradation within critical substrate area. With the developed framework, the contact pressure distribution, intergranular mechanical response and the progressive fatigue damage at the grain boundaries during repeated gear meshing are evaluated and discussed in detail. The depths of the maximum shear stress reversal and the crack initiation agree well with previously reported findings. The influence of microstructure on the gear contact fatigue behavior is also investigated.

Study of Fatigue Behavior of Epoxy-Carbon Composites under Mixed Mode I/II Loading

2017 ◽  
Vol 20 (2) ◽  
pp. 1700569 ◽  
Author(s):  
Clara Rocandio ◽  
Jaime Viña ◽  
Antonio Argüelles ◽  
Silvia Rubiera
Keyword(s):  
Mixed Mode ◽  
Fatigue Behavior ◽  
Mode I ◽  
Carbon Composites

scholarly journals Damage mode identification of Carbon fiber/Epoxy composites under fatigue process using acoustic emission monitoring

2021 ◽  
Vol 2125 (1) ◽  
pp. 012036
Author(s):  
Yi-Er Guo ◽  
De-Guang Shang ◽  
Lin-Xuan Zuo ◽  
Lin-Feng Qu ◽  
Di Cai ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Carbon Fiber ◽  
Shear Failure ◽  
Fatigue Behavior ◽  
Damage Mechanism ◽  
Matrix Cracking ◽  
Epoxy Composites ◽  
Interface Debonding ◽  
Accumulated Damage ◽  
Carbon Fiber Epoxy

Abstract In this paper, the static and fatigue behavior of carbon fiber/Epoxy composites laminate are investigated. The degradation and damage evolution in the composite laminate tests process were monitored using the acoustic emission technique. The acoustic signals collected during the tests were analyzed. The results of the acoustic emission signal accumulated during static and fatigue tests are compared in order to identify the accumulated damage mechanism of carbon fiber/Epoxy composites laminate. The accumulated damage is manifested by matrix cracking, fiber/matrix interface debonding, shear failure, delamination, and fiber break.

Flexural fatigue behavior of 2D cross-ply carbon/carbon composites at room temperature

2015 ◽  
Vol 634 ◽  
pp. 209-214 ◽  
Author(s):  
Li-Zhen Xue ◽  
Ke-Zhi Li ◽  
Yan Jia ◽  
Shou-Yang Zhang ◽  
Jing Cheng ◽  
...  
Keyword(s):  
Room Temperature ◽  
Fatigue Behavior ◽  
Carbon Composites ◽  
Flexural Fatigue
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