Results 21 to 30 of about 231,424 (276)

Homogenization methods and macro-strength of composites [PDF]

open access: yes, 2001
A multi-phase periodic composite subjected to inhomogeneous shrinkage or temperature deformation and prescribed mechanical loads is considered. The asymptotic homogenisation is applied for calculation of homogenized macrostresses. A non-local approximate
Krause, Egon   +2 more
core   +2 more sources

Influence of shear stress applied during flow stoppage and rest period on the mechanical properties of thixotropic suspensions [PDF]

open access: yesPhysical Review E, 2008
We study the solid mechanical properties of several thixotropic suspensions as a function of the shear stress history applied during their flow stoppage and their aging in their solid state. We show that their elastic modulus and yield stress depend strongly on the shear stress applied during their solid-liquid transition (i.e., during flow stoppage ...
Ovarlez, Guillaume, Chateau, Xavier
openaire   +4 more sources

Assur graphs, marginally jammed packings, and reconfigurable metamaterials

open access: yesPhysical Review Research, 2023
Isostatic frames are mechanical networks that are simultaneously rigid and stress-free. Isostaticity itself is a powerful concept in understanding phase transitions in soft matter and designing mechanical metamaterials.
Jose Ortiz-Tavarez   +2 more
doaj   +1 more source

Effect of microstructure on dynamic compressive behavior of cellular materials [PDF]

open access: yesEPJ Web of Conferences, 2021
It is known that the microstructure of cellular materials has a significant impact on their compressive properties. To study these phenomena, a hierarchical Poisson disk sampling algorithm and Voronoi partitioning were used to create a 3D numerical ...
Tateyama Kohei, Watanabe Keiko
doaj   +1 more source

Hydro-mechanical network modelling of particulate composites [PDF]

open access: yes, 2017
Differential shrinkage in particulate quasi-brittle materials causes microcracking which reduces durability in these materials by increasing their mass transport properties.
Athanasiadis, Ignatios   +2 more
core   +2 more sources

Effect of Curing Stress and Period on the Mechanical Properties of Cement-Mixed Sand

open access: yesSoils and Foundations, 2011
ABSTRACT Cement mixing is one of the popular ground improvement technologies in geotechnical engineering practice. In order to effectively and confidently design cement-mixed soil structures for specific purposes, its stress-strain behavior needs to be well understood. Though there have been many studies on cement-mixed soils using different types of
Jiro Kuwano   +3 more
openaire   +3 more sources

Quality factor control of mechanical resonators using variable phononic bandgap on periodic microstructures

open access: yesScientific Reports, 2022
The quality factor (Q-factor) is an important parameter for mechanical resonant sensors, and the optimal values depend on its application. Therefore, Q-factor control is essential for microelectromechanical systems (MEMS).
Naoki Inomata, Yuka Tonsho, Takahito Ono
doaj   +1 more source

Faults Self-Organized by Repeated Earthquakes in a Quasi-Static Antiplane Crack Model [PDF]

open access: yes, 1995
We study a 2D quasi-static discrete {\it crack} anti-plane model of a tectonic plate with long range elastic forces and quenched disorder. The plate is driven at its border and the load is transfered to all elements through elastic forces. This model can
Sornette, Didier, Vanneste, Christian
core   +5 more sources

Topological and Mechanical Properties of Different Lattice Structures Based on Additive Manufacturing

open access: yesMicromachines, 2022
The appearance and development of additive manufacturing technology promotes the production and manufacture of parts with more complex designs and smaller sizes and realizes the complex topology that cannot be made by equal-material manufacturing and ...
Fei Teng   +4 more
doaj   +1 more source

Mechanical properties of Graphene Nanoribbons

open access: yes, 2009
Herein, we investigate the structural, electronic and mechanical properties of zigzag graphene nanoribbons upon the presence of stress applying Density Functional Theory within the GGA-PBE approximation.
Cecilia Goyenola   +12 more
core   +1 more source

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