Results 41 to 50 of about 32,091 (263)
Artificial Instabilities of Finite Elements for Nonlinear Elasticity: Analysis and Remedies
International Journal for Numerical Methods in Engineering, 2022 SummaryWithin the framework of plane strain nonlinear elasticity, we present a discussion on the stability properties of various Enhanced Assumed Strain (EAS) finite element formulations with respect to physical and artificial (hourglassing) instabilities.
Simon Bieber +3 more
openaire +5 more sources
Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
Nonlinear Stiffness Modeling Method for a Collaborative Robot
Jixie chuandong, 2021 A nonlinear stiffness modeling method for collaborative robots（Cobots） is proposed， which is combine the finite element analysis method （FEA） with the virtual joint method （VJM）.
Song Wang +4 more
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Advanced Engineering Materials, EarlyView.Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley +1 more source
Finite element nonlinear analysis of high-rise unreinforced masonry building
Latin American Journal of Solids and StructuresA simple efficient algorithm based on compressive diagonal strength of unreinforced masonry walls is presented to determine capacity curve of unreinforced masonry building. The compressive strength is calculated based on a new close form solution.
A.H. Akhaveissy
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Advanced Engineering Materials, EarlyView.This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca +9 more
wiley +1 more source
Nonlinear Finite Element Analysis of Reinforced Concrete Shells
Tikrit Journal of Engineering Sciences, 2013 This investigation is to develop a numerical model suitable for nonlinear analysis of reinforced concrete shells. A nine-node Lagrangian element Figure (1) with enhanced shear interpolation will be used in this study.
Mustafa K. Ahmed +2 more
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From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices
Advanced Engineering Materials, EarlyView.Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle +3 more
wiley +1 more source
Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure
Advanced Engineering Materials, EarlyView.Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari +3 more
wiley +1 more source
NONLINEAR FINITE ELEMENT ANALYSIS OF PRESTRESSED CONCRETE MEMBERS
مجلة النهرين للعلوم الهندسية, 2008 A finite element method of analysis is used to study the strength and behavior of prestressed concrete members under short-term and sustained load conditions. The degenerated assumed strain eight-node shell finite element is used with each node having
Hani M. Fahmi, Zubaidah A. Al-Bayati
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