Results 41 to 50 of about 67,709 (358)

Buckling Analysis of Thin-Walled Circular Shells under Local Axial Compression using Vector Form Intrinsic Finite Element Method

Metals, 2023
The buckling failure of thin-walled circular shells under local axial compression is common in engineering. This study uses the vector form intrinsic finite element (VFIFE) method to investigate the buckling behavior of thin-walled circular shells under ...
Wenliang Ma, Zihan Sun, Han Wu, Leige Xu, Yong Zeng, Yanxing Wang, Guangyin Huang   +6 more
doaj   +1 more source

Effect of electron-phonon coupling in the ARPES spectra of the tri-layer cuprate Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10+\delta}$

, 2012
Angle-resolved photoemission spectroscopy using tunable low energy photons allows us to study the quasi-particle (QP) dispersions of the inner and outer CuO2 planes (IP and OP) separately in the tri-layer cuprate Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10+\delta ...
A Fujimori, A Ino, H Anzai, H Namatame, K M Kojima, K Takashima, Lee W S, M Arita, M Hashimoto, M Taniguchi, S Ideta, S Uchida, Sandvik A W, T Yoshida   +13 more
core   +1 more source

Buckling and vibration analysis of laminated composite plate/shell structures via a smoothed quadrilateral flat shell element with in-plane rotations [PDF]

, 2011
This paper presents buckling and free vibration analysis of composite plate/shell structures of various shapes, modulus ratios, span-to-thickness ratios, boundary conditions and lay-up sequences via a novel smoothed quadrilateral flat element.
Allman, Aydogu, Bathe, Chakrabarti, Choi, Darilmaz, Fares, Ferreira, H. Nguyen-Van, Hu, Huang, Hughes, Ibrahimbegovic, Jayasankar, Khdeir, Kim, Kumar, Leissa, Liew, Liew, Liew, Liew, Liew, Liew, Liew, Liew, Liew, Liu, Liu, Liu, Long, Matsunaga, Matsunaga, Mohamad, N. Mai-Duy, Nguyen-Van, Noor, Phan, Pimpinelli, Providas, Prusty, Reddy, Reddy, Reddy, Reddy, Sciuva, Striz, T. Tran-Cong, Taylor, Valchoutsis, W. Karunasena, Wang, Wang, Wu, Yang, Zhang, Zhen, Zienkiewicz   +57 more
core   +2 more sources

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Application of response surface methodology to stiffened panel optimization [PDF]

, 2006
In a multilevel optimization frame, the use of surrogate models to approximate optimization constraints allows great time saving. Among available metamodelling techniques we chose to use Neural Networks to perform regression of static mechanical criteria,
Grihon, Stéphane, Merval, Antoine, Samuelides, Manuel   +2 more
core   +1 more source

Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams

Advanced Engineering Materials, EarlyView.
This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier, Brett Emery, Jacob Miske, Jeffrey Lipton   +3 more
wiley   +1 more source

Localized Perturbation Load Approach for Buckling Design of Thin-Walled Steel Cylindrical Shells under Partial Axial Compression

Metals, 2023
A thin-walled steel cylindrical shell is a common engineering structure that has an efficient load-carrying capacity. This structure is more easily subjected to partial axial compression loads in application, and buckling is the main failure mode ...
He Ma, Peng Jiao, Huangyang Xu, Xinshuang Li, Zhiping Chen   +4 more
doaj   +1 more source

Local Buckling of Compressed Cold‐Formed Lipped Channels via Buckling Mode Shapes

ce/papers, 2022
AbstractThe effective width method is the most well‐known approach to determine the resistance of cold‐formed members using design formulas, accounting for the effect of local and distortional buckling.Local buckling is usually the most dominant failure mode of compressed C channels. The usual codified design method to calculate the buckling resistance
openaire   +1 more source

Multi-Mode Buckling Analysis of FGM Channel Section Beams [PDF]

Materials, 2020
The interactive buckling phenomenon in thin-walled channel section beams is investigated in this paper. This study deals with medium length beams made of the step-variable functionally graded materials (FGM) which consists of aluminum and titanium layers.
Zaczynska, Monika, Kazmierczyk, Filip
openaire   +2 more sources

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

Advanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo, Chiara Morano, Leonardo Pagnotta, Luigi Bruno   +3 more
wiley   +1 more source