Results 21 to 30 of about 678 (166)

Effective elastic moduli of two-dimensional solids with multiple cracks [PDF]

open access: yes, 1998
An accurate method which directly accounts for the interactions between different microcracks is used for analyzing the elastic problem of multiple cracks solids. The effective elastic moduli for randomly oriented cracks and parallel cracks are evaluated
Zhan, S (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech Continuous Media, Beijing 100080, Peoples R China.   +3 more
core   +1 more source

Towards gigantic RVE sizes for 3D stochastic fibrous networks [PDF]

open access: yes, 2014
The size of representative volume element (RVE) for 3D stochastic fibrous media is investigated. A statistical RVE size determination method is applied to a specific model of random microstructure: Poisson fibers. The definition of RVE size is related to
Jeulin, D.   +5 more
core   +1 more source

Micromechanics of creep fracture: simulation of intergranular crack growth [PDF]

open access: yes, 1998
A computational model is presented to analyze intergranular creep crack growth in a polycrystalline aggregate in a discrete manner and based directly on the underlying physical micromechanisms.
Giessen, Erik van der,   +4 more
core   +1 more source

Cosserat modeling of cellular solids [PDF]

open access: yes, 2002
Cellular solids inherit their macroscopic mechanical properties directly from the cellular microstructure. However, the characteristic material length scale is often not small compared to macroscopic dimensions, which limits the applicability of ...
Onck, Patrick R.,   +2 more
core   +1 more source

A stress-based macroscopic approach for microcracks unilateral effect [PDF]

open access: yes, 2010
The question of the nonlinear response of brittle materials undergoing elastic damage is investigated here. Owing to the specific nature of microcracking, the macroscopic behaviour of these materials is complex, generally anisotropic owing to the ...
Welemane, Hélène, Cormery, Fabrice
core   +1 more source

Comparison of several closure approximations for evaluating the thermoelastic properties of an injection molded short-fiber composite [PDF]

open access: yes, 2007
The accurate prediction of both the elastic properties and the thermal expansion coefficients is very important for the precise simulation of such processes as injection molding of short-fiber polymer-matrix composites.
DRAY, Delphine   +2 more
core   +1 more source

Size effects in cellular solids [PDF]

open access: yes, 2007
The mechanical properties of metal foams (and other cellular solids) depend on the properties of the metal that they are made from, on their relative density, and on the cell topology (i.e., cell size, cell shape, open or closed cell morphology, etc ...
Tekoğlu, Cihan, Tekoğlu, Cihan,
core  

Data presented in the paper: "Micromechanics-based surrogate models for the response of composites: A critical comparison between a classical mesoscale constitutive model, hyper-reduction and neural networks" [PDF]

open access: yes, 2020
This package contains the data presented in the following publication: I.B.C.M. Rocha, P. Kerfriden, F.P. van der Meer, "Micromechanics-based surrogate models for the response of composites: A critical comparison between a classical mesoscale ...
van der Meer, F.P. (Frans)   +11 more
core   +1 more source

Analysis of two-dimensional finite solids with microcracks

open access: yes, 1999
A general method is presented for solving the plane elasticity problem of finite plates with multiple microcracks. The method directly accounts for the interactions between different microcracks and the effect of outer boundary of a finite plate ...
Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.   +3 more
core   +1 more source

Enhancements on a micromechanical constitutive model of solid propellant

open access: yesInternational Journal of Solids and Structures, 2016
Abstract A constitutive model of solid propellant based on the micromechanical approach is presented. Proposed model includes the effects of temperature and strain rate dependency, and severe nonlinearities under cyclic loading. Damage is represented by the reduced elastic moduli which is the function of the void volume fraction.
Junyoung Hur   +3 more
openaire   +1 more source

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