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The Effect of Impact Load on the Atomistic Scale Fracture Behavior of Nanocrystalline bcc Iron [PDF]

open access: yesNanomaterials
Nanocrystalline metals have many applications in nanodevices, especially nanoscale electronics in aerospace. Their ability to resist fracture under impact produced by environmental stress is the main concern of nanodevice design.
Zhifu Zhao   +4 more
doaj   +2 more sources

Investigation on the Application of Taylor Impact Test to High-G Loading

open access: yesFrontiers in Materials, 2021
Taylor impact test is characterized by high impact energy, low cost, and good repeatability, giving it the technical foundation and development potential for application in high-g loading.
Li Juncheng   +4 more
doaj   +1 more source

Numerical Simulation and Analysis of Cylindrical Ice Impacting Problem

open access: yesShanghai Jiaotong Daxue xuebao, 2022
In order to study the application characteristics of the peridynamics (PD) method in the field of ice mechanical behavior and the sensitivity analysis of parameter changes in the numerical prediction of ice failure, the ordinary state-based peridynamic ...
WANG Chao, YANG Bo, ZHANG Yuan, GUO Chunyu, YE Liyu
doaj   +1 more source

Dynamic response characteristics analysis of four column chock shield support under impact load

open access: yesMeitan kexue jishu, 2023
The hydraulic support equipment is usually used to support the roof in underground mining. During this process, the support bears frequent impact load, which greatly weakens its dynamic stability.
ZENG Qingliang   +3 more
doaj   +1 more source

Comparison of the Behavior of FRP Rebar with Steel Rebar in Reinforced Concrete Columns under Impact Loading [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی, 2021
The aim of this paper is to dynamic analyses of rectangular columns using different types of Fibre-reinforced plastic (FRP) rebars (CFRP-AFRP-GFRP) and compare them with steel rebars under impact loading.
Reza Heydari mal-amiri, Davoud Tavakoli
doaj   +1 more source

Analysis of the response characteristics of a roadway wall under the impact of gas explosion

open access: yesEnergy Science & Engineering, 2023
Mine gas explosion causes serious failure (damage) to the roadway, but the research on the response characteristics of the impact load of gas explosion to the roadway wall are still very limited.
Jia Zhenzhen, Ye Qing
doaj   +1 more source

Biomechanical Modelling of the Human Skull Stress State under Impact by Cylindrical Solid

open access: yesМеханика машин, механизмов и материалов, 2023
Skull fractures are quite often observed in victims of falls, traffic accidents, attacks with the use of bats and rods. The aim of the study is to assess the stress-strain state of the human head under impact on the basis of finite element modelling. The
Sergei M. Bosiakov   +3 more
doaj   +1 more source

Breakage Characterization of Magnetite under Impact Loads and Cyclic Impact Loading [PDF]

open access: yesEnergies, 2020
A series of impact compression tests were conducted to study the breakage characteristics of magnetite, as well as the impact pressure on its strain rate and dynamic compressive strength. The dynamic mechanical properties and fragmentation size distribution of magnetite under diverse impact loads and cyclic impact were investigated, with fractal theory
Si, Liang, Cao, Yijun, Fan, Guixia
openaire   +2 more sources

Energy Absorption Characteristics of PVC Coarse Aggregate Concrete under Impact Load

open access: yesInternational Journal of Concrete Structures and Materials, 2021
In this paper, polyvinyl chloride (PVC) coarse aggregate with different mixing contents is used to solve the problems of plastic pollution, low energy absorption capacity and poor damage integrity, which provides an important reference for PVC plastic ...
Shi Hu, Huaming Tang, Shenyao Han
doaj   +1 more source

Study on dynamic crack initiation and propagation behavior of surrounding rock of adjacent roadway

open access: yes矿业科学学报, 2021
In order to study the mechanical behavior characteristics of dynamic crack initiation and propagation of surrounding rock of adjacent roadway under impact load, with the help of a new digital laser dynamic caustics experimental system, a rock-like medium
Yang Liyun   +5 more
doaj   +1 more source

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