scholarly journals Achievements and Prospects of Functional Pavement: Materials and Structures

2020 ◽  
Vol 10 (21) ◽  
pp. 7720
Author(s):  
Jian-long Zheng ◽  
Zhanping You ◽  
Xueyan Liu

In order to further promote the development of functional pavement technology, a Special Issue of “Achievements and Prospects of Functional Pavement” has been proposed by a group of guest editors. To reach this objective, articles included in this Special Issue are related to different aspects of functional pavement, including green roads to decrease carbon emission, noise, and pollution, safety pavement to increase skid resistance by water drainage and snow removal, intelligent roads for monitoring, power generation, temperature control and management, and durable roads to increase service life with new theory, new design methods, and prediction models, as highlighted in this editorial.

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 147 ◽  
Author(s):  
José Correia ◽  
Abílio De Jesus ◽  
Shun-Peng Zhu ◽  
Xiancheng Zhang ◽  
Dianyin Hu

This thematic issue on advanced simulation tools applied to materials development and design predictions gathers selected extended papers related to power generation systems, presented at the XIX International Colloquium on Mechanical Fatigue of Metals (ICMFM XIX) organized at University of Porto, Portugal, in 2018. Guest editors express special thanks to all contributors for the success of this special issue—authors, reviewers, and journal staff.


Author(s):  
Björn Buchholz ◽  
Uwe Gampe ◽  
Tilmann Beck

The growing share of power generation from volatile sources such as wind and photovoltaics requires fossil fuel fired power generation units be available and capable of high load flexibility to adjust to the changing capacity of the electrical grid. Additionally, back-up units with quick start capability and energy storage technologies are needed to fill the power shortfall when volatile sources are not available. Gas turbine and combined-cycle gas and steam turbine power plants are able to meet these demands. However, safe component design for improved cycling capability, combined with optimum utilization of material regarding its mechanical properties, requires design procedures and lifing models for the complex loadings resulting from this increased volatility of power demand. Since hot gas path components like turbine blades and vanes are highly stressed by cyclic thermal and mechanical loadings, resulting Thermo-Mechanical Fatigue (TMF), life prediction models such as the classic strain-life Coffin-Manson-Basquin method do not capture the influences of thermal cycling satisfyingly. Advanced TMF prediction models are thus necessary to accurately predict the durability of hot section components. This paper addresses life prediction of the Nickel-base superalloy René 80 at elevated temperature for various loading conditions. For this purpose, isothermal Low Cycle Fatigue (LCF) and corresponding TMF tests, with various temperature ranges and thermal-mechanical phase shifts, have been performed. On this basis, a systematic approach has been developed which allows assessing the key influences on TMF life. Moreover, a generalized model for fatigue has been derived, which has the potential to predict TMF life on the basis of LCF data. The knowledge gained from the model development allows an improved life prediction and better utilization of the material capabilities. Additionally, the required number of material tests for a general insight in the materials behaviour can be reduced significantly.


2017 ◽  
Vol 205 ◽  
pp. 1189-1201 ◽  
Author(s):  
Dawid P. Hanak ◽  
Barrie G. Jenkins ◽  
Tim Kruger ◽  
Vasilije Manovic

2015 ◽  
Vol 11 (6) ◽  
pp. 1313-1323 ◽  
Author(s):  
Yang Zhang ◽  
Herbert Ho-Ching Iu ◽  
Tyrone Fernando ◽  
Fang Yao ◽  
Kianoush Emami

Sign in / Sign up

Export Citation Format

Share Document