Results 51 to 60 of about 509,322 (292)

Magnetomechanical damping by polycrystalline TbDy [PDF]

, 2002
Vibration damping in polycrystalline TbDy alloys was studied at cryogenic temperatures. Mechanical hysteretic losses were measured at various strains, frequencies, and loading configurations at 77 K. Some textured TbDy materials demonstrated 22.6% energy
Dooley, J., Fultz, B., Good, N.
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Mechanical Energy Dissipation During Seismic Dynamic Weakening in Calcite‐Bearing Faults

Journal of Geophysical Research: Solid Earth
Earthquakes are frictional instabilities caused by the shear stress decrease, that is, dynamic weakening, of faults with slip and slip rate. During dynamic weakening, shear stress depends on slip, slip rate, and temperature, according to constitutive ...
S. Aretusini, A. Nuñez Cascajero, C. Cornelio, Xabier Barrero Echevarria, E. Spagnuolo, A. Tapetado, C. Vázquez, G. Di Toro, M. Cocco   +8 more
semanticscholar   +1 more source

Evolution of microcracks and energy of granite during shear test with PFC3D

Meitan kexue jishu
In order to investigate the influence of normal stress on the internal meso-scale damage process during rock shearing, direct shearing experiments and PFC3D numerical simulation experiments of granite under different normal stresses were carried out ...
Jizhe GUO, Zengchao FENG, Xuecheng LI
doaj   +1 more source

Study on energy concentration and dissipation of Beishan granite in Gansu during failure process

矿业科学学报, 2018
Servo test system was used to obtain stress-strain curves of Beishan granite under different confining pressure, and the loading process was jointly controlled by means of axial pressure and circumferential deformation.Variation characteristics of energy
Wang Chaosheng, Zhou Hongwei, Pei Hao, Wang Zihui, Liu Jianfeng   +4 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

Solid-fluid dynamics of yield-stress fluids

, 2014
On the example of two-phase continua experiencing stress induced solid-fluid phase transitions we explore the use of the Euler structure in the formulation of the governing equations.
Grmela, Miroslav, Peshkov, Ilya, Romenski, Evgeniy   +2 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Structural optimization for transfer chutes based on energy dissipation mechanisms of coal particles

Meitian dizhi yu kantan
ObjectiveBulk material transport in emergency rescue scenarios and coal transportation poses stringent demands for the structural performance of transfer chutes.
Yaocheng SHI, Zujie ZOU, Guojun WEN, Siyi CHENG, Laijie WU, Yudan WANG, Pu LIU, Mengxi CHEN   +7 more
doaj   +1 more source

Effect of axial loading rate on mechanical and permeability properties of raw coal

Meikuang Anquan, 2021
The coal-rock rheometer was used to carry out conventional triaxial mechanical seepage experiments on raw coal under different axial loading rates in this paper.
WEI Wenhui, WEI Aidong, DUAN Minke
doaj   +1 more source