Results 21 to 30 of about 8,567 (256)

Fracture behaviors of pre-cracked monolayer molybdenum disulfide: A molecular dynamics study

open access: yesBeilstein Journal of Nanotechnology, 2016
The fracture strength and crack propagation of monolayer molybdenum disulfide (MoS2) sheets with various pre-existing cracks are investigated using molecular dynamics simulation (MDS).
Qi-lin Xiong   +2 more
doaj   +1 more source

Modified compact tension specimen for experiments on cement based materials: comparison of calibration curves from 2D and 3D numerical solutions [PDF]

open access: yesFracture and Structural Integrity, 2017
The evaluation of fracture mechanics parameters of materials has become very important part of considering the condition of older constructions as well as properties of newly developed materials.
S. Seitl, V. Viszlay
doaj   +1 more source

An Image-Based Double-Smoothing Cohesive Finite Element Framework for Particle-Reinforced Materials

open access: yesMathematics, 2020
In order to simulate the fracture process of particle-reinforced materials on the micro-scale, an image-based double-smoothing cohesive finite element framework is proposed in the present paper.
Xiaoming Bai   +6 more
doaj   +1 more source

The effects of residual stress on elastic-plastic fracture propagation and stability

open access: yesMaterials & Design, 2018
Residual stresses in materials affect their resistance to the initiation of fracture and to subsequent crack growth. Using full-field strain measurements and finite element analysis we demonstrate that the effect of residual stress on a material's crack ...
H.E. Coules   +3 more
doaj   +1 more source

Finite Fracture Mechanics and Cohesive Crack Model_Size effects through a unified formulation

open access: yesFracture and Structural Integrity, 2022
Finite Fracture Mechanics and Cohesive Crack Model can effectively predict the strength of plain, cracked or notched structural components, overcoming the classical drawbacks of Linear Elastic Fracture Mechanics. Aim of the present work is to investigate
F. Ferrian   +3 more
doaj   +1 more source

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

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

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

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

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

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