Results 41 to 50 of about 15,584 (255)

Fatigue Crack Growth under Non-Proportional Mixed Mode Loading in Rail and Wheel Steel Part 1: Sequential Mode I and Mode II Loading

Applied Sciences, 2019
Fatigue tests were performed to estimate the coplanar and branch crack growth rates on rail and wheel steel under non-proportional mixed mode I/II loading cycles simulating the load on rolling contact fatigue cracks; sequential and overlapping mode I and
Makoto Akama
doaj   +1 more source

Prediction of mechanical properties and fractography examination of AZ91 magnesium composites reinforced with graphene using a random forest machine learning model: experimental validation

Archives of Civil and Mechanical Engineering
Machine learning (ML), a prominent branch of artificial intelligence, is increasingly applied in material design, particularly for magnesium composites.
Song-Jeng Huang, Yudhistira Adityawardhana   +1 more
semanticscholar   +1 more source

Low-Temperature Impact Fracture Behavior of Medium Manganese Steel with Bcc-fcc Duplex Microstructures

Metals
Impact fracture behavior at low temperatures was investigated in medium manganese steel with bcc-fcc duplex microstructures. The impact energy was above 150 J (−80~20 °C) and the fractography showed dimples for inter-critical annealing at 630 °C (QHA ...
Yu Du, Xiuhua Gao, Xiaonan Wang, Hongyan Wu, Chao Sun, Guosheng Sun, Linxiu Du   +6 more
doaj   +1 more source

Fractography of poly(N-isopropylacrylamide) hydrogel networks crosslinked with mechanofluorophores using confocal laser scanning microscopy

, 2020
Due to their soft and brittle nature, the mechanical characterization of polymer hydrogels is a difficult task employing traditional testing equipment. Here, we endowed poly(N-isopropyl acrylamide) (PNIPAAm) hydrogel networks with Diels–Alder adducts of ...
M. Stratigaki, C. Baumann, L. V. van Breemen, Johan P. A. Heuts, R. Sijbesma, R. Göstl   +5 more
semanticscholar   +1 more source

Effects of hydrogen gas pressure and test frequency on fatigue crack growth properties of low carbon steel in 0.1-90 MPa hydrogen gas

Nihon Kikai Gakkai ronbunshu, 2014
In order to investigate the effects of hydrogen gas pressure pH2 and test frequency f on the fatigue crack growth (FCG) properties of low carbon steel in hydrogen gas atmosphere, the FCG tests using compact tension specimens were conducted under various ...
Michio YOSHIKAWA, Takashi MATSUO, Noriko TSUTSUMI, Hisao MATSUNAGA, Saburo MATSUOKA   +4 more
doaj   +1 more source

Off-Axis Tension Behaviour of Unidirectional PEEK/AS4 Thermoplastic Composites

Applied Sciences, 2023
An experimental method for non-standard off-axis tension tests of unidirectional composites is developed. A new oblique end-tab is designed to eliminate stress concentration and in-plane bending moment induced by off-axis tension loading.
Yifan Ma, Yazhi Li, Lu Liu
doaj   +1 more source

Fatigue Behavior of an Al-12.7Si-0.7Mg Alloy Processed by Extrusion and Heat Treatment

Frontiers in Materials, 2021
The fatigue life of a hot extruded Al-12.7Si-0.7Mg alloy under T1, T4, and T6 conditions was studied. The microstructure and tensile properties of the alloy were investigated in order to analyze the fatigue behavior.
Fang Liu, Fuxiao Yu, Dazhi Zhao, Li Gao
doaj   +1 more source

Effect of Hydrogen Content and Strain Rate on Hydrogen-induced Delay Cracking for Hot-stamped Steel

Metals, 2019
Hot-stamped steel has been widely used in automobile bumper and other safety components due to its high strength. Therefore, this paper investigates the effect of hydrogen content and strain rate on hydrogen-induced delay cracking (HIDC) behavior.
Hongxing Jia, Xuewei Zhang, Juanping Xu, Yaping Sun, Jinxu Li   +4 more
doaj   +1 more source

The Combined Effect of Banana Fiber and Fly Ash Reinforcements on the Mechanical Behavior of Polyester Composites

Journal of Natural Fibers, 2022
The mechanical behavior of banana fiber (BA) reinforced polymer composites filled with fly ash (FA) is analyzed in this present investigation. Polyester matrix is used to produce composites with 30% of banana fiber volume and fly ash with three separate ...
Gokul Kannan, Rajasekaran Thangaraju, Palanikumar Kayaroganam, J. Paulo Davim   +3 more
doaj   +1 more source

Integrity Assessment of Stress Corrosion Cracking Susceptibility of Duplex UNS S32205 and Austenitic UNS S31653 Stainless Steel Reinforcements

Metals, 2023
Herein, the stress corrosion cracking (SCC) susceptibility of duplex (UNS S32205) and austenitic (UNS S31653) stainless steel (SS) reinforcements was evaluated using integrity assessment criteria.
Ulises Martin, David M. Bastidas
doaj   +1 more source