scholarly journals Creep-Fatigue Behavior and Damage Accumulation of a Candidate Structural Material for Concentrating Solar Power Thermal Receiver Quarter 6 Report

2019 ◽  
Author(s):  
Michael D McMurtrey ◽  
Ryann E Rupp ◽  
Bipul Barua ◽  
Mark Messner
Keyword(s):  
Structural Material ◽  
Damage Accumulation ◽  
Solar Power ◽  
Fatigue Behavior ◽  
Concentrating Solar Power ◽  
Thermal Receiver ◽  
Creep Fatigue

High-temperature hot-corrosion effects on the creep–fatigue behavior of a directionally solidified nickel-based superalloy: Mechanism and lifetime prediction

2019 ◽  
Vol 29 (5) ◽  
pp. 798-809
Author(s):  
Shaolin Li ◽  
Xiaoguang Yang ◽  
Hongyu Qi
Keyword(s):  
High Temperature ◽  
Hot Corrosion ◽  
Damage Accumulation ◽  
Fatigue Behavior ◽  
Coated Sample ◽  
Directionally Solidified ◽  
Accumulation Model ◽  
Nickel Based Superalloy ◽  
Creep Fatigue ◽  
Damage Accumulation Model

Creep–fatigue experiments were performed at 850℃ on bare and salt-coated directionally solidified Ni-based superalloy DZ125. Experimental test results showed that the salt-coated sample exhibited lower lifetime than that of the bare sample under all stress conditions. This reduction is found to correlate directly with the higher probability of crack initiation, due to surface micro-structural degradation and higher actual stress as a result of the decrease in effective bearing area. A modified damage accumulation model considering the creep, fatigue, and hot-corrosion interaction effect was proposed to predict the corrosion–creep–fatigue lifetime. In this model, a critical high-temperature hot-corrosion exposure time was proposed and was introduced using the Miller linear damage accumulation model. The predicted lifetimes correspond remarkably well with the experimental results.

Fatigue of Unidirectional Cord-Rubber Composites

1999 ◽  
Vol 27 (1) ◽  
pp. 48-57 ◽  
Author(s):  
Y. Liu ◽  
Z. Wan ◽  
Z. Tian ◽  
X. Du ◽  
J. Jiang ◽  
...  
Keyword(s):  
Damage Accumulation ◽  
Fatigue Testing ◽  
Fatigue Behavior ◽  
Constant Load ◽  
Testing System ◽  
Rubber Composites ◽  
Cycle Frequency ◽  
Periodic Loading ◽  
Fatigue Damage Accumulation ◽  
Rubber Composite

Abstract A fatigue testing system is established with which the real-time recording of stress, strain, temperature, and hysteresis loss of rubbers or cord-rubber composite specimens subjected to periodic loading or extension can be successfully carried out. Several problems are connected with the experimental study of the fatigue of rubber composites. In constant extension cycling, the specimen becomes relaxed because of the viscoelasticity of rubber composites, and the imposed tension-tension deformation becomes complex. In this method, the specimen is unlikely to fail unless the imposed extensions are very large. Constant load cycling can avoid the shortcomings of constant extension cycling. The specially designed clamps ensure that the specimen does not slip when the load retains a constant value. The Deformation and fatigue damage accumulation processes of rubber composites under periodic loading are also examined. Obviously, the effect of cycle frequency on the fatigue life of rubber composites can not be ignored because of the viscoelasticity of constituent materials. The increase of specimen surface temperature is relatively small in the case of 1 Hz, but the temperature can easily reach 100°C at the 8 Hz frequency. A method for evaluating the fatigue behavior of tires is proposed.

Post subsidy conditions: Evaluating the techno-economic performance of concentrating solar power in Spain

Solar Energy ◽  
2021 ◽  
Vol 218 ◽  
pp. 571-586
Author(s):  
Pierre-Antoine Parent ◽  
Pegah Mirzania ◽  
Nazmiye Balta-Ozkan ◽  
Peter King
Keyword(s):  
Economic Performance ◽  
Solar Power ◽  
Concentrating Solar Power
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