Results 21 to 30 of about 14,074,967 (383)

Buckling pressure assessment methods of bellows with thin wall reinforcing rings

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This paper describes evaluation methods of in-plane squirm buckling strength of bellows with thin wall reinforcing rings. Many bellows with thin wall reinforcing rings are used in the facilities of nuclear power plants. Bellows used in a vent pipe of the
Hideo MACHIDA, Manabu ARAKAWA
doaj   +1 more source

Analysis of the Flux and Polarization Spectra of the Type Ia Supernova SN 2001el: Exploring the Geometry of the High-velocity Ejecta [PDF]

open access: yes, 2003
SN 2001el is the first normal Type Ia supernova to show a strong, intrinsic polarization signal. In addition, during the epochs prior to maximum light, the CaII IR triplet absorption is seen distinctly and separately at both normal photospheric ...
Brown J. C.   +20 more
core   +2 more sources

Bending buckling of box beam by energy method

open access: yesNihon Kikai Gakkai ronbunshu, 2015
Recently, high strength steel is used increasingly for plates which constitute the frame structures of vehicles. Since these plates become thinner, the buckling on the plates has been recognized as an important issue for automotive industries.
Katsuya FURUSU   +4 more
doaj   +1 more source

Method Development for Sustainable Product and Service Design Strategy: Polymer Products with Shell Structures

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2023
Sustainability in industrial design aims to provide a better world for future generations by reducing the energy and resource consumption used in the design of products or services.
Mustafa CANBULAT   +2 more
doaj   +1 more source

Free-form optimization of a shell structure for minimizing maximum stress

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this paper, we present a parameter-free free-form optimization method for the strength design problem of a shell structure. The maximum von Mises stress is minimized under a given volume constraint condition.
Masatoshi SHIMODA   +2 more
doaj   +1 more source

Thickness optimization of shell structure for controlling time-dependent responses

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this study, we propose a parameter-free optimization method to control time-dependent responses of a shell structure, where the optimal thickness distribution is determined without design parameterization.
Mamoru WAKASA, Masatoshi SHIMODA
doaj   +1 more source

Investigation on the Precipitates of IN718 Alloy Fabricated by Selective Laser Melting

open access: yesMetals, 2019
The microstructure and precipitates of INCONEL 718 alloy (IN718) fabricated by selective laser melting (SLM) are investigated. The matrix is comprised of the elongated γ grains along Z direction, tilting a few degrees.
Yu Cao, Pucun Bai, Fei Liu, Xiaohu Hou
doaj   +1 more source

Temporal structures in shell models [PDF]

open access: yesPhysical Review E, 2001
The intermittent dynamics of the turbulent GOY shell-model is characterised by a single type of burst-like structure, which moves through the shells like a front. This temporal structure is described by the dynamics of the instantaneous configuration of the shell-amplitudes revealing a approximative chaotic attractor of the dynamics.
openaire   +3 more sources

Research on seismic performance of honeycomb plate cylindrical reticulated shell structure

open access: yesCase Studies in Construction Materials, 2023
In previous research, an aluminum alloy honeycomb plate cylindrical reticulated shell structure was designed. The bearing capacity test and numerical analysis show that the numerical analysis model of honeycomb plate cylindrical reticulated shell ...
Tengteng Zheng   +4 more
doaj   +1 more source

Employing mesh segmentation algorithms as fabrication strategies: Pattern generation based on reaction-diffusion mechanism [PDF]

open access: yesFME Transactions, 2019
This paper examines how the evolution of architectural generative design processes aim to apply similar physical and geometrical principles of biological processes taking place during development and to translate them to fabrication processes. In analogy
Giannopoulou Effimia   +5 more
doaj  

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