Results 31 to 40 of about 376,664 (195)

Research on surrounding rock control technology of deep roadway based on butterfly failure theory

open access: yesMeitan kexue jishu, 2023
At present, roadway surrounding rock control is still one of the major problems in deep mining of coal resources. The formation and development of the plastic zone of the surrounding rock is the main cause of large deformation and failure of roadway.
WANG Weijun   +3 more
doaj   +1 more source

ME Design and Freeform Fabrication of Compliant Cellular Materials with Graded Stiffness [PDF]

open access: yes, 2006
Typically, cellular materials are designed for structural applications to provide stiffness or absorb impact via permanent plastic deformation. Alternatively, it is possible to design compliant cellular materials that absorb energy via recoverable ...
Gupta, Guarav   +2 more
core   +1 more source

Anomalous compliance and early yielding of nanoporous gold

open access: yes, 2015
We present a study of the elastic and plastic behavior of nanoporous gold in compression, focusing on molecular dynamics simulation and inspecting experimental data for verification.
Albe, Karsten   +5 more
core   +1 more source

Effects of Stress State, Crack—γ/γ′ Phase Interface Relative Locations and Orientations on the Deformation and Crack Propagation Behaviors of the Ni-Based Superalloy—A Molecular Dynamics Study

open access: yesCrystals, 2023
In this study, we systematically investigate the influence of stress states, relative locations, and orientations of crack—γ/γ′ phase interfaces on the deformation and crack propagation behaviors of the Ni-based superalloy through molecular dynamics ...
Xinmao Qin, Yilong Liang, Jiabao Gu
doaj   +1 more source

Development of the Metal Rheology Model of High-temperature Deformation for Modeling by Finite Element Method [PDF]

open access: yes, 2019
It is shown that when modeling the processes of forging and stamping, it is necessary to take into account not only the hardening of the material, but also softening, which occurs during hot processing.
Aliieva, L. (Leila)   +3 more
core   +2 more sources

Strategic niobium integration and thermomechanical processing in the advancement of novel CMnSiAlPMo TRIP-aided bainitic steel

open access: yesScientific Reports
This study examines the effects of niobium (Nb) addition and different thermomechanical controlled processing (TMCP) regimes on the flow stress behaviour and microstructure evolution of a newly developed CMnSiAlPMo TRIP-aided bainitic steel.
Hoda Refaiy   +3 more
doaj   +1 more source

Evaluating the Effectiveness of Magnetic-Pulse Treatment for Healing Continuity Defects in the Metal of Oil and Gas Pipelines

open access: yesMetals, 2023
This research paper addresses the issues in evaluating the effectiveness of magnetic-pulse treatment for healing continuity defects in the metal of oil and gas pipelines. A theoretical analysis of the magnetic-pulse action mechanism on continuity defects
Andrey Schipachev   +5 more
doaj   +1 more source

A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers

open access: yes, 2015
Polymer self-adhesion due to the interdiffusion of macromolecules has been an active area of research for several decades [70, 43, 62, 42, 72, 73, 41]. Here, we report a new phenomenon of sub-Tg, solid-state, plasticity-induced bonding; where amorphous ...
Padhye, Nikhil   +3 more
core   +1 more source

$1/f$ noise and avalanche scaling in plastic deformation [PDF]

open access: yes, 2006
We study the intermittency and noise of dislocation systems undergoing shear deformation. Simulations of a simple two-dimensional discrete dislocation dynamics model indicate that the deformation rate exhibits a power spectrum scaling of the type $1/f ...
B. Gutenberg   +8 more
core   +3 more sources

Mechanism Governing the Effect of Roller Straightening of a Pure Magnesium Strip on the Tensile Stress–Strain Curve Shape

open access: yesJournal of Manufacturing and Materials Processing
A roller straightening process of a pure magnesium strip, accompanied by alternating elastic-plastic deformation, was performed through one and three passes, where one pass corresponded to 19 bending events.
Stanislav O. Rogachev   +5 more
doaj   +1 more source

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