Results 31 to 40 of about 101,352 (336)

X-FEM in isogeometric analysis for linear fracture mechanics [PDF]

open access: yes, 2011
The extended finite element method (X-FEM) has proven to be an accurate, robust method for solving problems in fracture mechanics. X-FEM has typically been used with elements using linear basis functions, although some work has been performed using ...
Akkerman   +33 more
core   +1 more source

Cracked finite elements proposed for NASTRAN [PDF]

open access: yes, 1973
The recent introduction of special crack-tip singularity elements, usually referred to as cracked elements, has brought the power and flexibility of the finite-element method to bear much more effectively on fracture mechanics problems.
Aberson, J. A., Anderson, J. M.
core   +1 more source

Fatigue life prediction of z-fibre pinned composite laminate under mode I loading [PDF]

open access: yes, 2019
A hybrid method is presented combining linear elastic fracture mechanics with nonlinear damage mechanics that can predict the fatigue crack growth rate in z-fibre pinned composites under mode I loading.
Ayre, David   +3 more
core   +2 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

3D numerical modelling of twisting cracks under bending and torsion of skew notched beams [PDF]

open access: yes, 2017
The testing of mode III and mixed mode failure is every so often encountered in the dedicated literature of mechanical characterization of brittle and quasi-brittle materials.
Benedetti, Lorenzo   +2 more
core   +5 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek   +5 more
wiley   +1 more source

Modeling Fractures in a Poro-Elastic Medium

open access: yesOil & Gas Science and Technology, 2014
We present a fracture model in a poro-elastic medium. The model describes the fracture as a curve or surface according to the dimension, the width of the crack being included into the equation of flow in the fracture. The discretization uses mixed finite
Ganis Benjamin   +4 more
doaj   +1 more source

Cast3M implementation of the extended finite element method for cohesive crack

open access: yesVietnam Journal of Mechanics, 2011
In this paper, the finite element for cohesive crack for quasi-brittle materials is constructed by the displacement discontinuities in the element.
Nguyen Truong Giang, Ngo Huong Nhu
doaj   +1 more source

Progressive Fracture of Composite Structures [PDF]

open access: yes, 2008
A new approach is described for evaluating fracture in composite structures. This approach is independent of classical fracture mechanics parameters like fracture toughness.
Chamis, Christos C., Minnetyan, Levon
core   +1 more source

A quadtree-polygon-based scaled boundary finite element method for image-based mesoscale fracture modelling in concrete [PDF]

open access: yes, 2019
A quadtree-polygon scaled boundary finite element-based approach for image-based modelling of concrete fracture at the mesoscale is developed. Digital images representing the two-phase mesostructure of concrete, which comprises of coarse aggregates and ...
A.A. Saputra   +59 more
core   +1 more source

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