Results 1 to 10 of about 406,954 (296)

Ultra-high frequency vibration fatigue of DD6 single crystal superalloy simulating thin-walled specimens

Journal of Aeronautical Materials, 2023
The effect of specimen thickness on the very high cycle fatigue （VHCF） properties of DD6 nickel-based single crystal superalloys for turbine blades with hollow air-cooled structure was investigated. Based on the finite element method （FEM）, a thin-walled
GAO Zhiyuan, CHEN Haohui, CHEN Xin, ZHONG Chaofeng, ZHANG Yue, HU Jiangkun, XU Wei, HE Yuhuai   +7 more
doaj   +1 more source

Fatigue characteristics of copper-steel electron beam welding materials

Cailiao gongcheng, 2023
The fatigue performance of dissimilar metal welded components has an important influence on the service reliability of spacecraft. The fatigue life and fatigue fracture mechanism of dissimilar metal welded joints of QCr0.8 copper alloy and 1Cr21Ni5Ti ...
CHEN Yu, ZHOU Genshu, ZHAN Teng, LI Chengji, HUA Xiaoming, ZHANG Quanming, FU Qinqin, LIU Xinjie, CHEN Kunyu, ZHANG Qinlian   +9 more
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Quantized fracture mechanics [PDF]

Philosophical Magazine, 2004
A new energy-based theory, quantized fracture mechanics (QFM), is presented that modifies continuum-based fracture mechanics; stress- and strain-based QFM analogs are also proposed. The differentials in Griffith's criterion are substituted with finite differences; the implications are remarkable.
Pugno, Nicola, R. Ruoff
openaire   +3 more sources

Experimental and numerical investigation on compressive strength and crack behavior of rock-like specimens with open flaws under confining loads

Frontiers in Earth Science, 2022
Engineering problems are related to the failure of geological material, especially that of jointed rock masses. To investigate the influence of confining stress and inclination angle β on cracking behavior and failure mechanism, triaxial compression ...
Shaorui Sun, Jin Wang, Huilin Le, Haotian Fan, Wuchao Wang   +4 more
doaj   +1 more source

Effect of layer thickness of prepreg on static and dynamic flexural properties of continuous carbon fiber reinforced polyamide 6

Nihon Kikai Gakkai ronbunshu, 2021
The effect of layer thickness of prepreg on the static and dynamic flexural properties of quasi-isotropic carbon fiber reinforced polyamide 6 laminates were investigated.
Masachika YAMANE, Shota NAKAKUBO, Koutarou KOIZUMI, Hideyuki UEMATSU, Shuichi TANOUE   +4 more
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Experimental Investigation of Mechanical Properties, Fracture Mechanism and Crack Propagation of PA6/NBR/Clay Nanocomposites [PDF]

علوم و تکنولوژی پلیمر, 2020
Hypothesis: Polyamide 6 (PA6)/nitrile butadiene rubber (NBR) thermoplastic elastomer reinforced by nanoparticles has several applications in various industries.
Mohammad Reza Nakhaei, Ghasem Naderi, Mir Hamid Reza Ghoreishy   +2 more
doaj   +1 more source

Influence of cooling conditions and amount of retained austenite on the fracture of austempered ductile iron [PDF]

Journal of the Serbian Chemical Society, 2008
SEM Analysis of fracture surfaces from tensile test specimens of thick-walled, austempered ductile irons (diameter 160 mm) shows different fracture behavior depending on the austenite retained in the matrix.
Goryany Vyacheslav, Hofmann Eckart, Mauk Josef Paul   +2 more
doaj   +1 more source

Fracture mechanism and failure strain of TA31 titanium alloy for deep-sea pressure hulls based on continuum damage mechanics

Frontiers in Materials, 2023
Titanium alloys has high fatigue resistance, high corrosion resistance, high temperature resistance, and other excellent properties, and have been widely used in deep-sea equipment and aviation industries.
Bowen Zhang, Zhengquan Wan
doaj   +1 more source

Effect of Surface Mechanical Attrition Treatment on Torsional Fatigue Properties of a 7075 Aluminum Alloy

Metals, 2022
The effect of Surface Mechanical Attrition Treatment (SMAT) on torsional fatigue properties of a 7075 aluminum alloy was investigated. A number of fatigue samples were heat treated to increase the sensitivity of the material to SMAT. Compared with the as-
Yizhuo Li, Delphine Retraint, Pengfei Gao, Hongqian Xue, Tao Gao, Zhidan Sun   +5 more
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Influence of binder systems on sintering characteristics, microstructures, and mechanical properties of PcBN composites fabricated by SPS

Journal of Advanced Ceramics, 2022
Cubic boron nitride (cBN) with high hardness, thermal conductivity, wear resistance, and chemical inertness has become the most promising abrasive and machining material.
Shuna Chen, Hengzhong Fan, Yunfeng Su, Wensheng Li, Jicheng Li, Bing Yan, Junjie Song, Litian Hu, Yongsheng Zhang   +8 more
doaj   +1 more source