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Kuo-Long Lee, Shih-Bin Chien, Wen-Fung Pan
Pág. 1 - 6
In this study, the response of local sharp-notched SUS304 stainless steel tubes with different notch depths of 0.2, 0.4, 0.6, 0.8 and 1.0 mm subjected to cyclic bending at different curvature-rates of 0.0035, 0.035 and 0.35 m-1s-1 were experimentally inv...
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Yulong Chen, Qingxiang Meng and Jianwei Zhang
This study focused on the effects of the notch angle, notch length, and injection rate on hydraulic fracturing. True triaxial hydraulic fracturing experiments were conducted with 300 × 300 × 300 mm cement mortar blocks. The test results showed that the f...
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Marta De Giorgi, Riccardo Nobile and Fania Palano
Since the presence of a notch in a mechanical component causes a reduction in the fatigue strength, it is important to know the kf value for a given notch geometry and material. This parameter is fundamental in the fatigue design of aeronautical componen...
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Bilal El-Ariss and Said Elkholy
This study addresses the feasibility of reusing pre-damaged steel beams in temporary structures. The extensive structural investigation of notch-damaged, unrepaired, and laterally unsupported steel beams was performed experimentally and numerically. The ...
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Xiaoqing Lu and Guanxi Yan
Most semi-circular bend (SCB) tests on concrete have been conducted with a pre-crack with a straight-through tip, thereby undermining the determination of the tensile fracture toughness (KIc). Therefore, the present study involved mixed-mode (tensile?she...
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Faris H. Almansour, Geamel H. Alyami and Hussein N. Shaman
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Neboj?a Buljan, Davor Skejic, Paulina Krolo and Mladen Lukic
In unitised curtain walls, the transfer of horizontal loads, mainly wind loads, from the upper into the lower unit is achieved through the head/notch interlocking connection. Optimisation of the machining process would require a sharp root of the notch, ...
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Alaa Sheta, Hamza Turabieh, Thaer Thaher, Jingwei Too, Majdi Mafarja, Md Shafaeat Hossain and Salim R. Surani
Obstructive sleep apnea (OSA) is a well-known sleep ailment. OSA mostly occurs due to the shortage of oxygen for the human body, which causes several symptoms (i.e., low concentration, daytime sleepiness, and irritability). Discovering the existence of O...
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Mohammad Hossein Same, Gabriel Gleeton, Gabriel Gandubert, Preslav Ivanov and Rene Jr Landry
By increasing the demand for radio frequency (RF) and access of hackers and spoofers to low price hardware and software defined radios (SDR), radio frequency interference (RFI) became a more frequent and serious problem. In order to increase the security...
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Jian Sun, Lei Wu and Chengqi Sun
The notch (i.e., stress concentration) and defect are important factors influencing the conventional fatigue behavior of metallic materials. What is the influence of notches and defects on the dwell fatigue mechanism and fatigue life? In this paper, the ...
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Sahel Shahbaz, Majid Reza Ayatollahi, Ali Reza Torabi and Sergio Cicero
The paper allows the fracture behavior of biopolymers containing notches to be better understood.
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Bilal Naji Alhasnawi, Basil H. Jasim, Walid Issa and M. Dolores Esteban
This paper presents a novel cooperative control technique concerning fully-distributed AC/DC microgrids. Distributed generation based on inverters has two types, i.e., Current Source Inverter (CSI), also referred to as PQ inverter, and Voltage Source Inv...
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Hanbing Liu, Xiang Lyu, Yuwei Zhang, Guobao Luo and Wenjun Li
Generally, reactive powder concrete (RPC) contains steel fibers often exposed to aggressive environments. Steel fibers in such RPCs are subjected to corrosion in-service, which can significantly change the mechanical properties of the structural componen...
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Emin Musa Afandiyev,Mahamadali Nuraddin Nuriyev
Pág. 47 - 51
An analysis of the discarded drill pipes that had been used in wedge grips has revealed that the main reason for pipe rejection is the reduction of a pipe wall as a result of plastic deformations, due to damaging the pipe surface by the die teeth. The lo...
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Yulong Chen, Qingxiang Meng and Jianwei Zhang
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Djilali Beida Maamar, Zenasni Ramdane
Pág. 142 - 151
The main purpose of the present investigation was to determine the damages generated by the low velocities with the help of the experimental method (Impact by a drop test) and the finite element method. The commercial transient finite element package LS-...
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Mohammed Lahlou, Nadia Mouhib, Hanaa Ouaomar, Abdelilah Hachim, Mohamed Elghorba
Pág. 233 - 237
In metallic structures, cracks are mostly initiated at geometric discontinuities of notches or defects. The geometric parameters and discontinuities govern cracks initiation or propagation and therefore affect the resistance of structures during their us...
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Kinoshita, K.,Arakawa, S.
Pág. 68 - 74
For fatigue assessment, recently effective notch stress (ENS) approach is accepted as a valid alternative to fracture mechanics approaches in Japan. However, at least one study showed that the fatigue assessment at weld root of load-carrying crucif...
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Aboubakar Seddik Bouchikhi, Nassereddine Bouida, Farouk Benallal Boukhoulda
Pág. 123 - 131
This study has been made to determine the performance of the (Ti-TiB) FGM plate to reduce the J-integral calculated for the crack tip emanating from the semicircular notch root in mode I and mixed mode, when the crack is propagated from the notch root. I...
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Shahriar Shahbazpanahi
Pág. 285 - 290
Shear crack analysis is essential for engineers to estimate repair work in concrete structures. So far, conventional theoretical and numerical analyses in fracture mechanics have been applied to study concrete flexural beams, but there is still lit...
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