Results 21 to 30 of about 5,804 (225)

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

open access: yesApplied 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

Fractography and failure mechanisms of amorphous thermoplastics

open access: yes, 2022
S.387-436For glassy thermoplastics during the fracture process itself, craze material is differently formed and fractured depending on microscopic parameters such as molecular weight and on macroscopic prameters such as time, crack speed and stress ...
Döll, W.
core  

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

open access: yesMetals
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   +6 more
doaj   +1 more source

Forensic Fractography of Bone

open access: yes, 2018
Fractography is the study of fracture surface morphology, and it can be used to assess a material’s mechanical properties as well as to determine the underlying mechanisms leading to material failure.
Maureen Bottrell   +11 more
core   +1 more source

Multiscale fatigue damage characterization in short glass fiber reinforced polyamide-66 [PDF]

open access: yes, 2014
This paper aims at studying fatigue damage behavior of injection molded 30 wt% short glass fiber reinforced polyamide-66 composite (PA66/GF30). The evolution of dynamic modulus, hysteresis area, cyclic creep and temperature during fatigue tests were ...
ARIF, Muhamad Fatikul   +5 more
core   +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

open access: yesNihon 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   +4 more
doaj   +1 more source

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

open access: yesApplied 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

open access: yesFrontiers 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

open access: yesMetals, 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   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

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