Results 51 to 60 of about 16,360 (294)

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source

Static and Dynamic Analysis of Strain Gradient Planar Trusses

Buildings
This paper examines the static and dynamic responses of strain gradient planar trusses. Classical elasticity (CE) theory lacks a material microstructural length parameter in its governing equations, making it insufficient to capture size-dependent ...
George C. Tsiatas, Aristotelis E. Charalampakis, Antonios E. Giannakopoulos, Panos Tsopelas   +3 more
doaj   +1 more source

Nanomechanics of a screw dislocation in a functionally graded material using the theory of gradient elasticity

Journal of the Mechanical Behavior of Materials, 2013
The modest aim of this short article is to provide some new results for a screw dislocation in a functionally graded material within the theory of gradient elasticity. These results, based on a displacement formulation and the Fourier transform technique,
Davoudi Kamyar M., Davoudi Hossein M., Aifantis Elias C.   +2 more
doaj   +1 more source

The ab-initio aided strain gradient elasticity theory: a new concept for fracture nanomechanics

Fracture and Structural Integrity, 2019
When the width of cracked nanocomponents made of brittle or quasi-brittle materials is less than approximately , the size of the - dominance zone becomes smaller than and comparable to the fracture process zone ( ).
Tom� Profant, Jaroslav Pokluda
doaj   +1 more source

Uniqueness for plane crack problems in dipolar gradient elasticity and in couple-stress elasticity

, 2005
The present work deals with the uniqueness theorem for plane crack problems in solids characterized by dipolar gradient elasticity. The theory of gradient elasticity derives from considerations of microstructure in elastic continua [Mindlin, R.D., 1964 ...
Georgiadis, H.G., C.G. Grentzelou, Grentzelou, C.G., Georgiadis, HG, H.G. Georgiadis, Grentzelou, CG   +5 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Buckling analysis of nonuniform nonlocal strain gradient beams using generalized differential quadrature method

Alexandria Engineering Journal, 2018
Recently, it was shown that the length scales presented in nonlocal elasticity and strain gradient theory each describe a different physical and material properties of structures at small scales.
H. Bakhshi Khaniki, Sh. Hosseini-Hashemi, A. Nezamabadi   +2 more
doaj   +1 more source

Axial and Torsional Free Vibrations of Elastic Nano-Beams by Stress-Driven Two-Phase Elasticity [PDF]

Journal of Applied and Computational Mechanics, 2019
Size-dependent longitudinal and torsional vibrations of nano-beams are examined by two-phase mixture integral elasticity. A new and efficient elastodynamic model is conceived by convexly combining the local phase with strain- and stress-driven purely ...
Andrea Apuzzo, Raffaele Barretta, Francesco Fabbrocino, S. Ali Faghidian, Raimondo Luciano, Francesco Marotti de Sciarra   +5 more
doaj   +1 more source

Strong Ellipticity and Infinitesimal Stability within Nth-Order Gradient Elasticity

Mathematics, 2023
We formulate a series of strong ellipticity inequalities for equilibrium equations of the gradient elasticity up to the Nth order. Within this model of a continuum, there exists a deformation energy introduced as an objective function of deformation ...
Victor A. Eremeyev
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source