Results 21 to 30 of about 2,037,833 (341)

A simple permanent deformation model of rockfill materials

open access: yesWater Science and Engineering, 2018
Existing experimental results have shown that using a semi-log linear relationship between the permanent volumetric strain and cyclic number underestimates the volumetric deformation of rockfill materials with a large cyclic number, and that the error ...
De-gao Zou   +4 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

Time series InSAR surface deformation monitoring in extremely difficult area based on track refining control points selection

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2021
The extremely difficult area has the characteristics of extremely rugged terrain, complex geographical environment and sparse permanent scatterers. Therefore, an improved SBAS-InSAR technology is designed to monitor the surface deformation. In this paper,
Jianping PAN   +5 more
doaj   +1 more source

Stress buildup in the Himalaya [PDF]

open access: yes, 2004
The seismic cycle on a major fault involves long periods of elastic strain and stress accumulation, driven by aseismic ductile deformation at depth, ultimately released by sudden fault slip events. Coseismic slip distributions are generally heterogeneous
Avouac, J. P.   +3 more
core   +1 more source

Electronic structure of rectangular quantum dots [PDF]

open access: yes, 2003
We study the ground state properties of rectangular quantum dots by using the spin-density-functional theory and quantum Monte Carlo methods. The dot geometry is determined by an infinite hard-wall potential to enable comparison to manufactured ...
A. Harju   +47 more
core   +2 more sources

Deformation of elastomeric chains related to the amount and time of stretching

open access: yesDental Press Journal of Orthodontics, 2013
OBJECTIVE: To investigate a potential relationship between degree of stretching and resulting permanent deformation of elastomeric chains (ECs) as well as whether or not stretching time has any bearing on the degree of permanent deformation.
Denise Yagura   +3 more
doaj   +1 more source

Investigation on permanent deformation in steel-concrete composite beam bridge deck pavement under temperature-load coupling effect

open access: yesFrontiers in Materials, 2023
Rutting is one of the common distresses observed in asphalt pavement, influenced by temperature and load conditions. To clarify the permanent deformation behavior of steel-concrete composite beam (SCCB) bridge deck pavement under temperature-load ...
Jing Yang   +3 more
doaj   +1 more source

Factors Affecting on Permanent Deformation of Orthodontic Arch wires (An In vitro Study) [PDF]

open access: yesAl-Rafidain Dental Journal, 2011
Aims: To measure the amount of permanent deformation of different types of orthodontic arch wires and to study the effect of both time interval and simulated oral environment on amount of permanent deformation of different types of nickel titanium and ...
Enas TM Al-Jwary
doaj   +1 more source

Characterization of the material response in the granular ratcheting [PDF]

open access: yes, 2005
The existence of a very special ratcheting regime has recently been reported in a granular packing subjected to cyclic loading \cite{alonso04}. In this state, the system accumulates a small permanent deformation after each cycle.
A. Niemunis   +23 more
core   +2 more sources

Constraints on the perturbed mutual motion in Didymos due to impact-induced deformation of its primary after the DART impact [PDF]

open access: yes, 2017
Binary near-Earth asteroid (65803) Didymos is the target of the proposed NASA Double Asteroid Redirection Test (DART), part of the Asteroid Impact & Deflection Assessment (AIDA) mission concept.
Benner, Lance A. M.   +12 more
core   +2 more sources

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