Results 41 to 50 of about 34,989 (222)

Dynamic behavior and energy dissipation mechanisms of coral aggregate concrete under high strain rate impact loading

Case Studies in Construction Materials
To improve the impact resistance of coral aggregate concrete (CAC) used in island-reef engineering, this study investigated its dynamic mechanical behavior, failure mechanisms, and energy dissipation characteristics under impact compression and impact ...
Ye Tian, Xiaoqing Dai, Linjian Ma, Xudong Chen, Jinshan Sun   +4 more
doaj   +1 more source

Cable vibration caused by wind

EPJ Web of Conferences, 2018
The paper briefly presents selected basic kinds of excitation of cable vibration caused by dynamic effect of wind. It describes the aerodynamic phenomena such as vortex excitation, wind-rain excitation, galloping and buffeting.
Golebiowska Irena, Peszynski Kazimierz
doaj   +1 more source

Effect of structural configuration on air blast resistance of polyurea-coated composite steel plates: Experimental studies

Materials & Design, 2019
The effect of structural configuration on air blast resistance of polyurea-coated composite steel (PCCS) plates was experimentally evaluated. Four types of PCCS plates with identical total areal density were subjected to different air blasts. The failure
Hailiang Hou, Changhai Chen, Yuansheng Cheng, Pan Zhang, Xuebing Tian, Ting Liu, Junze Wang   +6 more
doaj   +1 more source

Energy characteristics of sandstones with different crack angles under true triaxial cyclic loading and unloading

Energy Science & Engineering, 2022
The effect of crack angle on energy evolution during sandstone failure subjected to true triaxial cyclic loading and unloading is of great concern. However, the energy consumed in the crack initiation and compaction process is generally referred to the ...
Huarui Hu, Binwei Xia, Yafei Luo, Jiajun Peng   +3 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Multi-Scale evaluation of low-temperature performance in asphalt mixtures using not-notched semi-circular bending creep testing

Frontiers in Materials
To address the challenge of obtaining core samples directly from the field for low-temperature crack resistance tests of asphalt mixtures, this study utilizes the not-notched semi-circular bending (NN-SCB) creep test as a novel evaluation method.
Xinghao Xi, Xinghao Xi, Xinghao Xi, Dong Tang, Dong Tang, Zhenghe Wang, Zhenghe Wang, Naitian Zhang, Naitian Zhang   +8 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Damage mechanisms of interlayer rock mass under close-distance coal seam mining disturbance: a macro-micro scale study

Results in Engineering
Rock mass damage induced by close-distance coal seam mining significantly affects roadway surrounding rock stability. Current research inadequately addresses macroscopic and mesoscopic damage characteristics of rocks under multi-stage mining stress paths.
Heng Jiang, Zuo Sun, Yachao Guo, Junmeng Li, Kaiyuan Lian, Xuesen Zhang, Yidi Dai   +6 more
doaj   +1 more source

Analysis on seismic performance of a new type of stiffening rib angle steel damper [PDF]

E3S Web of Conferences
This paper proposes a stiffening angle steel damper for beam-column joints. The ABAQUS software is used to study the influence of the thickness, opening ratio and number of openings of the stiffening rib on the energy dissipation performance of the ...
Hao Jinfeng, Diao Fawei, Qu Mingyang
doaj   +1 more source