Tamfu, Alfred Ngenge Ceylan, Ozgur Kucukaydin, Selcuk Ozturk, Mehmet Duru, Mehmet Emin Dinica, Rodica Mihaela
Published in
Foods (Basel, Switzerland)
Food pathogens represent an important health threat, and it is relevant to study the effect of foodstuffs such as spices which can inhibit bacterial growth. This study reports the antimicrobial, antibiofilm, and enzyme (Acetylcholinesterase, Butyrylcholinesterase, urease, tyrosinase) inhibitory activities of two medicinal food spices belonging to t...
Zhuang, N. N. Chen, H. B. Wang, Y. Y.
Published in
Vibroengineering PROCEDIA
To give a fatigue life prediction for problems with bimodal stress power spectral density which is commonly observed in the dynamic response of structures, the bimodal triangular model is established first and a large sum of bimodal stress power spectral densities with different characteristics are built. Then the error analysis of the fatigue life...
Kluger, Krzysztof Karolczuk, Aleksander Derda, Szymon
Published in
Materials
This study presents the life-dependent material parameters concept as applied to several well-known fatigue models for the purpose of life prediction under multiaxial and non-zero mean loading. The necessity of replacing the fixed material parameters with life-dependent parameters is demonstrated. The aim of the research here is verification of the...
Jin, Lili Zeng, Bin Lu, Damin Gao, Yingjun Zhang, Keshi
Published in
Materials
The relationship between strain fatigue life and evolution of meso-deformation inhomogeneity was studied, through the cyclic process of numerical simulation of crystal plasticity compared with the fatigue test of steel hot-rolled ribbed-steel bar 400 (HRB400). The statistical characterization parameters at grain level, including the standard deviat...
Böhm, Michał Głowacka, Karolina
Published in
Polymers
This paper describes the current state-of-the-art in fatigue life assessment for lightweight composite structures with the use of the frequency domain fatigue life calculation method. Random stationary gaussian loading signals have been generated and served in the process of fatigue calculation. The material information that is being used in the ca...
Chen, Xudong Shi, Dandan Shen, Nan Li, Shengtao Liu, Saisai
Published in
International Journal of Concrete Structures and Materials
As a solid pollutant, the recycled aggregate can be reused to replace the natural aggregate to cast pervious concrete, promoting resource recycling and reducing environmental pollution. Pervious concrete is usually applied to transportation engineering as pavements and decks, which are often subjected to fatigue loads in service. Therefore, it is e...
zou, li sun, yibo yang, xinhua
In order to obtain comprehensive assessment of the factors influencing fatigue life and to further improve the accuracy of fatigue life prediction of welded joints, soft computing methods, including entropy-based neighborhood rough set reduction algorithm, the particle swarm optimization (PSO) algorithm and support vector regression machine (SVRM) ...
chengji, mi wentai, li xiao, xuewen berto, filippo
The traditional methodologies for fatigue life assessment of welded joints strongly depend on geometries and surface characteristics, as well as time. In this paper, an energy-based approach, independent of structures though thermal-graphic measurement, was presented to predict life expectancy of welded joints, via limited number of tests. In order...
Meng, Yuxian Gao, Lilan Gao, Hong Yuan, Xin
Published in
Journal of Materials Engineering and Performance
In this work, the effect of precompression along the extrusion direction on the strain-controlled low-cycle fatigue behavior of an extruded AZ31 magnesium alloy was investigated. After precompression deformation occurred, the tensile yield strength decreased, whereas the tensile yield strength and ultimate tensile strength increased gradually as pr...
Lin, H. Geng, H. P. Zhang, Y. Y. Li, H. Liu, X. Y. Zhou, X. F. Yu, L.
Published in
Strength of Materials
Casting of a gas turbine blade from MAR-M247 nickel-base superalloy is followed by multiple carbide precipitates as a result of solidification. The microstructure of carbide was established with scanning electron microscopy and energy spectrum analysis. A finite element model simulating the blade with a random carbide precipitate is constructed usi...
