Results 11 to 20 of about 1,562,663 (239)

Using the discrete element method to simulate brittle fracture in the indentation of a silica glass with a blunt indenter [PDF]

open access: yes, 2013
This work was supported by the Conseil Régional d’Aquitaine and was conducted under the auspices of the Etude et Formation en Surfacage Optique (EFESO 2) project.
CHARLES, Jean-Luc   +5 more
core   +1 more source

Constitutive modeling of damageable brittle and quasi-brittle materials

open access: yesInternational Journal of Solids and Structures, 2017
Abstract The objective of this paper is to develop a constitutive model for damageable brittle and quasi-brittle materials. A damage model, which can handle damage anisotropy, distinct tensile and compressive damage behavior, and damage deactivation simultaneously, is developed.
Liang Zhang, Wenbin Yu
openaire   +1 more source

Sub-surface damage issues for effective fabrication of large optics [PDF]

open access: yes, 2008
A new ultra precision large optics grinding machine, BoX®has been developed at Cranfield University. BoX®islocated at the UK's Ultra Precision Surfaces laboratory at the OpTIC Technium.
P. Morantz   +13 more
core   +1 more source

A damage model for the dynamic fragmentation of brittle solids [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Denoual, Christophe, Hild, François
openaire   +1 more source

A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite [PDF]

open access: yes, 2011
This work concerned the design and development of a miniature double torsion (DT) testing rig, for use inside the chamber of a scanning electron microscope, to perform in situ loading studies of brittle materials using the DT fracture mechanics specimen.
Rosie, Kathryn A
core   +1 more source

Brittle creep, damage, and time to failure in rocks [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2006
We propose a numerical model based on static fatigue laws in order to model the time‐dependent damage and deformation of rocks under creep. An empirical relation between time to failure and applied stress is used to simulate the behavior of each element of our finite element model. We review available data on creep experiments in order to study how the
Amitrano, David, Helmstetter, A.
openaire   +3 more sources

The numerical analysis of dynamically loaded ceramic: a crack softening approach [PDF]

open access: yes, 2000
A physically based crack softening approach to modelling the failure of brittle materials that have been subjected to dynamic loading is presented and applied to a two-dimensional non-linear transient dynamic hydrocode.
Iremonger, Michael J.   +5 more
core   +1 more source

Catastrophic Rupture Induced Damage Coalescence in Heterogeneous Brittle Media

open access: yes, 2006
In heterogeneous brittle media, the evolution of damage is strongly influenced by the multiscale coupling effect. To better understand this effect, we perform a detailed investigation of the damage evolution, with particular attention focused on the ...
汪海英   +5 more
core   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

open access: yesAdvanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

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