Results 41 to 50 of about 20,135,100 (276)

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar   +3 more
wiley   +1 more source

Data-driven Bayesian model-based prediction of fatigue crack nucleation in Ni-based superalloys

open access: yesnpj Computational Materials, 2022
This paper develops a Bayesian inference-based probabilistic crack nucleation model for the Ni-based superalloy René 88DT under fatigue loading. A data-driven, machine learning approach is developed, identifying underlying mechanisms driving crack ...
Maxwell Pinz   +4 more
doaj   +1 more source

An oversampling technique for the multiscale finite volume method to simulate electromagnetic responses in the frequency domain [PDF]

open access: yesComputational Geosciences, 2017
15 pages, 18 ...
Luz Angélica Caudillo-Mata   +2 more
openaire   +4 more sources

High-order multiscale finite element method for elliptic problems [PDF]

open access: yes
In this paper, a new high-order multiscale finite element method is developed for elliptic problems with highly oscillating coefficients. The method is inspired by the multiscale finite element method developed in [3], but a more explicit multiscale ...
Zhang, Shun   +2 more
core   +2 more sources

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

Mixed Multiscale Finite Volume Methods for Elliptic Problems in Two-Phase Flow Simulations [PDF]

open access: yesCommunications in Computational Physics, 2012
We develop a framework for constructing mixed multiscale finite volume methods for elliptic equations with multiple scales arising from flows in porous media. Some of the methods developed using the framework are already known [20]; others are new. New insight is gained for the known methods and extra flexibility is provided by the new methods. We give
Jiang, Lijian, Mishev, Ilya D.
openaire   +2 more sources

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang   +12 more
wiley   +1 more source

Multiscale Heat Transfer Analysis of Three-dimensional Braided Composites

open access: yesHangkong gongcheng jinzhan, 2019
3D braided composites have been widely used in aerospace engineering and thermal conductivity is one of its important physical properties. Based on the mesoscopic unit cell of 3D 4-directional braided composites, the macro-and micro-multi-scale models ...
Huang Zhiqiang, Nie Yufeng, Li Yiqiang
doaj   +1 more source

Finite element heterogeneous multiscale methods with near optimal computational complexity

open access: yes, 2007
This paper is concerned with a numerical method for multiscale elliptic problems. Using the framework of the heterogeneous multiscale methods (HMM), we propose a micro-macro approach which combines the finite element method (FEM) for the macroscopic ...
Engquist, Björn,, Abdulle, A.
core   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

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