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Investigating the effect of laser shock process on fracture and fatigue properties of 2024-T351 aluminum alloy using numerical modeling [PDF]

مجله مدل سازی در مهندسی, 2023
One of the most important challenges facing mechanical parts that are exposed to dynamic loads in various industries, such as automotive and aerospace, is their failure due to fatigue.
Javad Pezeshki, Danial Ghahremani-moghadam, massoud mir, Mohammad Rramazani moghadam   +3 more
doaj   +1 more source

Mechanical damage behavior of metal matrix composites with the arbitrary morphology of particles

Journal of Materials Research and Technology, 2020
Metal matrix composites have significant applications in the engineering field. During service, the fracture is one of the most typical failure modes.
Yan-Yan Zhang, Ri-Lin Shen, Mu-Zi Li, Jian-Chao Pang, Lin Zhang, Shou-Xin Li, Zhe-Feng Zhang   +6 more
doaj   +1 more source

Notch Fracture in Polymeric Specimens under Compressive Stresses: The Role of the Equivalent Material Concept in Estimating the Critical Stress of Polymers

Applied Sciences, 2021
In this paper, the fracture of notched polymeric specimens under compressive stresses was investigated both experimentally and theoretically. In the experimental section, to determine the load-carrying capacity (LCC) of U-notched specimens made of ...
Ali Reza Torabi, Kazem Hamidi, Abdol Saleh Rahimi, Sergio Cicero   +3 more
doaj   +1 more source

Studies on the effect of thermal shock on crack resistance of 20MnMoNi55 steel using compact tension specimens

Nuclear Engineering and Technology, 2021
One of the major factors affecting the life span of a Reactor Pressure Vessel (RPV) is the Pressurised Thermal Shock (PTS). PTS is a thermo-mechanical load on the RPV wall due to steep temperature gradients and structural load created by internal ...
K. Thamaraiselvi, S. Vishnuvardhan
doaj   +1 more source

Effect of Aluminized Modified PS - PVD 7YSZ Thermal Barrier Coating on the Mechanical Properties of DZ125 Alloy [PDF]

Cailiao Baohu, 2022
Plasma spraying-physical vapor deposition(PS-PVD) process was applied to prepare aluminized modified thermal barrier coatings(TBCs) on the DZ125 superalloy substrate.
LUO Na, HE Bing, ZHANG Xiao-feng
doaj   +1 more source

Nanoparticle additions promote outstanding fracture toughness and fatigue strength in a cast Al–Cu alloy

Materials & Design, 2020
Fatigue resistance and fracture toughness are essential to the reliability of castings during service. Reducing microporosity in cast alloys is a crucial issue for improving their fatigue strength and fracture toughness.
Chenglin Yang, Qinglong Zhao, Zhenjun Zhang, Linlin Li, Weisi Tian, Rui Liu, Peng Zhang, Yijiang Xu, Yanjun Li, Zhefeng Zhang, Qichuan Jiang, Robert O. Ritchie   +11 more
doaj   +1 more source

Fracture Behavior of Two Biopolymers Containing Notches: Effects of Notch Tip Plasticity

Applied Sciences, 2020
This paper analyzes the notch effect on the fracture behavior of two biomaterials (a brittle bone cement and a ductile dental material) under mode I loading. U-notched Brazilian disk (UNBD) specimens of both materials were tested under remote compression,
Sahel Shahbaz, Majid Reza Ayatollahi, Ali Reza Torabi, Sergio Cicero   +3 more
doaj   +1 more source

Characterization of 3D-printed PLA parts with different raster orientations and printing speeds

Scientific Reports, 2022
Fabrication based on additive manufacturing (AM) process from a three-dimensional (3D) model has received significant attention in the past few years.
Mohammad Reza Khosravani, Filippo Berto, Majid R. Ayatollahi, Tamara Reinicke   +3 more
doaj   +1 more source

Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission

Applied Sciences, 2020
As common conductive materials, Al wires are used on overhead transmission lines under long-term heating conditions. In this study, the strength degradation behavior and the strength-electrical conductivity relation of the commercially pure Al wires ...
Rui Li, Hanzhong Liu, Heng Ma, Jiapeng Hou, Liqun Qian, Qiang Wang, Xiaowu Li, Zhefeng Zhang   +7 more
doaj   +1 more source

Incidence and contributing factors of non-root canal treated teeth with chronic fatigue root fracture: A cross-sectional study

Journal of the Formosan Medical Association, 2023
Background/purpose: Chronic fatigue root fracture describes a root fracture in a non-root canal treated (non-RCT) tooth. This study aimed to report the incidence and contributing factors of non-RCT teeth with chronic fatigue root fracture in a Taiwanese ...
Shue-Fen Yang, Yan-Wen Chen, Chia-Lun Tsai, Han-Chieh Cheng, Shang-Liang Wu, Aviad Tamse, Yi-Ching Ho   +6 more
doaj   +1 more source