Results 81 to 90 of about 159,258 (313)

Study on the Dynamic Deformation Characteristics of Artificial Structural Loess

Buildings
Due to the difficulties in sampling, high sensitivity to humidity, and inconvenience in storage, undisturbed loess is prone to changes in its original structure.
Yu Xi, Mingming Sun, Xueqing Hua, Yao Zhang, Ye Yuan   +4 more
doaj   +1 more source

The time-dependent deformation and damage constitutive model of rock based on dynamic disturbance tests

Open Geosciences, 2023
In the deep rock excavation process, the rock will produce deformation and damage under multiple dynamic disturbances, while there is also unrecoverable time-dependent deformation.
Chu Shaofeng, Chen Shihai, Liu Minlong, Huang Jiang, Wei Haixia   +4 more
doaj   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

Analytical Modeling and Structural Optimization of Slender Variable Cross-Section Rod for High-Speed Chip Placement

Machines
The cantilever pick-and-place arm of the high-speed placement machine is susceptible to micro-vibration and elastic deformation under high-acceleration motion, thereby degrading chip placement accuracy.
Guoqing Hu, Tonglin Song, Jian Xue
doaj   +1 more source

Analysis of static and dynamic deformation modulus

Engineering Structures and Technologies, 2016
This article summarises dynamic deformation modulus correlation with second reload of static plate load test results for an even thickness soil strata layer.
Mindaugas Mikolainis, Marijus Ustinovičius, Danutė Sližytė, Tatyana Zhilkina   +3 more
doaj   +1 more source

Correlation of microseismic and chemical properties of brittle deformation in Locharbriggs sandstone [PDF]

, 2003
The time-dependent properties of ceramic materials such as rocks depend both on preexisting cracks and chemical properties acting at their tips. We have examined the direct effect of chemical processes on the growth of a crack population by carrying out ...
Main, Ian G, Ira O. Ojala, Ian G. Main, Ojala, Ira O, Elphick, Stephen, Bryne T. Ngwenya, Ojala, I. O., Ngwenya, B. T., Elphick, S. C., Stephen C. Elphick, Main, I. G.; id_orcid, Ngwenya, Bryne T   +11 more
core   +1 more source

Nanostructures as indicator for deformation dynamics

Nature Communications
We aim to determine the feedback between fault dynamics and fault gouge structures by examining gouge structures that formed during rupture and slip of initially intact granite under upper crustal conditions. Experiments were conducted under quasi-static (3·10-5 mm/s), weakly dynamic (0.27 mm/s) and fully dynamic (≫1.5 mm/s ...
Sarah Incel, Markus Ohl, Frans Aben, Oliver Plümper, Nicolas Brantut   +4 more
openaire   +6 more sources

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Transmission-lattice based geometric phase analysis for evaluating the dynamic deformation of a liquid surface

, 2014
Quantitatively measuring a dynamic liquid surface often presents a challenge due to high transparency, fluidity and specular reflection. Here, a novel Transmission-Lattice based Geometric Phase Analysis (TLGPA) method is introduced.
Shi WX, 黄先富, Liu ZW, Liu, ZW (reprint author), Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China.   +3 more
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source