Results 41 to 50 of about 16,452 (299)

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney   +2 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

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Duality of singularities of multiscale damage localization and crack advance: length variety in Theory of Critical Distances

open access: yesFracture and Structural Integrity, 2019
The existence of two singularities related to the stress field at the crack tip and blow-up kinetics of damage localization is considered as the physical basis for the interpretation of the Theory of Critical Distances.
Oleg Naimark
doaj   +3 more sources

Stress intensity solutions for cracked orthotropic plates

open access: yesEPJ Web of Conferences, 2010
In this paper, fracture mechanics in orthotropic plates, stress and displacement distributions around the crack tip in an anisotropic material are considered.
Rahmani O.   +3 more
doaj   +1 more source

Deformation and fracture simulation of Ni3Al alloy under shock loads [PDF]

open access: yesEPJ Web of Conferences, 2019
A theoretical study of the deformation and fracture behavior of Ni3Al alloy under shock loading has been carried out. The finite element method simulation was used within the approach that combined modeling in terms of the dislocation kinetics of alloys ...
Belov Nikolay   +3 more
doaj   +1 more source

Fracture mechanics approaches to modeling the pullout of anchor bolts

open access: yes, 1992
Summarizes and presents preliminary results of a round-robin analysis of anchor bolts organized by RILEM TC 90-FMA, Fracture Mechanics of Concrete-Applications.
Elfgren, Lennart,, Schwartz, S E
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +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

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