Results 101 to 110 of about 10,260 (202)

Post-critical buckling of truncated conical carbon nanotubes considering surface effects embedding in a nonlinear Winkler substrate using the Rayleigh-Ritz method

Materials Research Express, 2020
This research predicts theoretically post-critical axial buckling behavior of truncated conical carbon nanotubes (CCNTs) with several boundary conditions by assuming a nonlinear Winkler matrix.
Mohammad Malikan, Victor A Eremeyev
doaj   +1 more source

Physics-Informed Neural Network for Nonlinear Bending Analysis of Nano-Beams: A Systematic Hyperparameter Optimization

Mathematical and Computational Applications
This paper investigates the nonlinear bending analysis of nano-beams using the physics-informed neural network (PINN) method. The nonlinear governing equations for the bending of size-dependent nano-beams are derived from Hamilton’s principle ...
Saba Sadat Mirsadeghi Esfahani, Ali Fallah, Mohammad Mohammadi Aghdam   +2 more
doaj   +1 more source

A Multiscale Nonlocal Progressive Damage Model for Composite Materials [PDF]

In this paper, the advantages of a nonlocal progressive damage formulation are described and demonstrated. An approximation of the nonlocal formulation was implemented coupled with the MAT162 composite damage model as a User defined material model in the
Kodagali, Karan, Sockalingam, Subramani
core   +1 more source

Flexural Eigenfrequency Analysis of Healthy and Pathological Tissues Using Machine Learning and Nonlocal Viscoelasticity

Computers
Biomechanical characteristics can be used to assist the early detection of many diseases, including breast cancer, thyroid nodules, prostate cancer, liver fibrosis, ovarian diseases, and tendon disorders.
Ali Farajpour, Wendy V. Ingman
doaj   +1 more source

A Review of Theories and Numerical Methods in Nanomechanics for the Analysis of Nanostructures

Mathematics
Nanostructures, such as carbon nanotubes (CNTs), graphene, nanoplates, etc., show behaviors that classical continuum theories cannot capture. At the nanoscale, size effects, surface stresses, and nonlocal interactions become important, so new models are ...
Mostafa Sadeghian, Arvydas Palevicius, Giedrius Janusas   +2 more
doaj   +1 more source

Mathematical Modeling on Weakened Thermomagnetic Nanobeam Based on the Nonlocal Strain Gradient Theory

Contemporary Mathematics
In this research paper, the focus is on analyzing the free lateral vibration of a nanobeam that has been weakened. The investigation revolves around studying the impact of thermal and magnetic effects on the nanobeam, utilizing both Bernoulli's beam theory and the nonlocal strain gradient theory (NSGT).
Mohammadreza Eghbali, Seyed Amirhosein Hosseini, Mahdi Keshtkar   +2 more
openaire   +1 more source

A Refined Nonlocal Strain Gradient Theory For Assessing Scaling-Dependent Vibration Behavior Of Microbeams

, 2017
{"references": ["L. Li, Y. Hu, and L. Ling, \"Flexural wave propagation in small-scaled\nfunctionally graded beams via a nonlocal strain gradient theory,\"\nComposite Structures, vol. 133, pp. 1079\u20131092, 2015.", "L. Li, Y. Hu, and L. Ling, \"Wave propagation in viscoelastic\nsingle-walled carbon nanotubes with surface effect under magnetic field ...
Xiaobai Li, Li, Li, Hu, Yujin, Weiming Deng, Ding, Zhe   +4 more
openaire   +1 more source

Exact Analytical Solutions for Static Response of Helical Single-Walled Carbon Nanotubes Using Nonlocal Euler-Bernoulli Beam Theory. [PDF]

Nanomaterials (Basel)
Dalgıç AM, Tüfekci M, Pir İ, Tüfekci E.   +3 more
europepmc   +1 more source

Peridynamics-Based Finite Element Analysis of Sealing Failure at Casing-Cement Sheath Interfaces in Ultra-Deep Wells. [PDF]

ACS Omega
Zhai S, Feng B, Zhao S, Li D, Cai C, Zhao X.   +5 more
europepmc   +1 more source

Non-ordinary state-based peridynamics model for rock crack propagation: a combined stress-energy fracture method. [PDF]

Sci Rep
Gong B, Song Y, Zhang L, Chao W.
europepmc   +1 more source