Results 81 to 90 of about 111,009 (290)

Dynamic Analysis of a Fiber-Reinforced Composite Beam under a Moving Load by the Ritz Method

Mathematics, 2021
This paper presents the dynamic responses of a fiber-reinforced composite beam under a moving load. The Timoshenko beam theory was employed to analyze the kinematics of the composite beam.
Şeref D. Akbaş, Hakan Ersoy, Bekir Akgöz, Ömer Civalek   +3 more
doaj   +1 more source

A Force‐Based Beam‐Column Element With Selective Gradient‐Inelasticity for Softening Materials in 3‐Dimensional Nonlinear Analysis

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 1, Page 26-45, January 2026.
ABSTRACT Fiber‐based beam‐column elements featuring an effective material constitutive law with softening can capture the degrading response of structural members under extreme loading. However, these elements exhibit strain localization and mesh divergence, which impedes their accuracy.
Diego Isidoro Heredia Rosa, Albano de Castro e Sousa, Dimitrios G. Lignos, Arka Maity, Amit Kanvinde   +4 more
wiley   +1 more source

Bending and Free Vibration Analysis of Nonlocal Functionally Graded Nanocomposite Timoshenko Beam Model Rreinforced by SWBNNT Based on Modified Coupled Stress Theory [PDF]

Journal of Nanostructures, 2013
In this article, the bending and free vibration analysis of functionally graded (FG) nanocomposites Timoshenko beam model reinforced by single-walled boron nitride nanotube (SWBNNT) using micro-mechanical approach embedded in an elastic medium is studied.
M. Mohammadimehr, M. Mahmudian-Najafabadi   +1 more
doaj   +1 more source

Variational Formulation of Curved Beams in Global Coordinates

, 2013
In this paper we derive a variational formulation for a linear curved beam which is natively expressed in global Cartesian coordinates. During derivation the beam midline is assumed to be implicitly described by a vector distance function which ...
Hansbo, Peter, Larson, Mats G., Larsson, Karl   +2 more
core   +1 more source

Transverse Vibration of Axially Moving Functionally Graded Materials Based on Timoshenko Beam Theory

, 2015
The transverse free vibration of an axially moving beam made of functionally graded materials (FGM) is investigated using a Timoshenko beam theory. Natural frequencies, vibration modes, and critical speeds of such axially moving systems are determined ...
Sui Sui, Ling Chen, Cheng Li, Xinpei Liu
semanticscholar   +1 more source

Hygromnemics: Programmable Material Memory Matter Actuators via Wet Pre‐Constraining

Advanced Materials Technologies, Volume 10, Issue 23, December 3, 2025.
Humidity‐based pre‐constraining creates hygromnemics‐shape memory matter. From identical biocomposites actuation in dry and wet states is obtained via hygromnemic and hygromorphic actuation, respectively. Hygromnemic actuators present long‐ and short‐term shape memory abilities.
Charles de Kergariou, Findlay S. G. Smith, Richard S. Trask, Adam W. Perriman, Fabrizio Scarpa, David Correa   +5 more
wiley   +1 more source

Free and Forced Vibrations of an Axially-Loaded Timoshenko Multi-Span Beam Carrying a Number of Various Concentrated Elements

Shock and Vibration, 2012
In the existing reports regarding free and forced vibrations of the beams, most of them studied a uniform beam carrying various concentrated elements using Bernoulli-Euler Beam Theory (BET) but without axial force. The purpose of this paper is to utilize
Yusuf Yesilce
doaj   +1 more source

Automated Computation of Autonomous Spectral Submanifolds for Nonlinear Modal Analysis

, 2018
We discuss an automated computational methodology for computing two-dimensional spectral submanifolds (SSMs) in autonomous nonlinear mechanical systems of arbitrary degrees of freedom.
Haller, George, Pedergnana, Tiemo, Ponsioen, Sten   +2 more
core   +1 more source

Can Asymmetrical Mechanical Loading Be Accurately Inferred From the Analysis of Skeletal Material?

American Journal of Biological Anthropology, Volume 188, Issue 4, December 2025.
ABSTRACT Objectives Reconstructing habitual limb preference in the past is crucial for understanding the evolution of hominin behavior. However, our ability to reliably identify asymmetrical behaviors from bone remains is limited due to a lack of experimental evidence directly correlating a history of loading asymmetry with skeletal asymmetry.
Antonio Profico, Nathan Jeffery, Fotios Alexandros Karakostis   +2 more
wiley   +1 more source

Structural and Functional Co‐Adaptation of Plants of the Genus Lysimachia L. (Primulaceae) and Pollinating Insects of the Genus Macropis Panzer (Hymenoptera, Melittidae)

Ecology and Evolution, Volume 15, Issue 12, December 2025.
The co‐adaptation of bees from the genus Macropis and Lysimachia plants has been studied in detail. Research shows that bees collect not just pure liquid oil from flower petals but tear off trichome heads filled with oil, transferring them to their nests.
Vladimir G. Radchenko, Mykola G. Chausov, Artur F. Likhanov, Hanna Yu. Honchar, Denis Michez   +4 more
wiley   +1 more source