Journal ArticleDOI
Optimal bead orientation of 3D shell/plate structures
Jian Hui Luo,Hae Chang Gea +1 more
TLDR
In this article, the optimal bead orientation problem of 3D shell/plate structures is investigated for both static and dynamic cases using a bending equivalent orthotropic shell design cell model, and it is solved by a new energy based method.About:
This article is published in Finite Elements in Analysis and Design.The article was published on 1998-11-01. It has received 55 citations till now. The article focuses on the topics: Shell (structure) & Orthotropic material.read more
Citations
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Journal ArticleDOI
Discrete material optimization of general composite shell structures
Jan Stegmann,Erik Lund +1 more
TL;DR: A novel method for doing material optimization of general composite laminate shell structures is presented and its capabilities are illustrated with three examples.
Journal ArticleDOI
Topology optimization of structures with geometrical nonlinearities
Hae Chang Gea,Jianhui Luo +1 more
TL;DR: In this paper, the stiffness optimization problem for structures with geometrical nonlinearities is investigated and the mean compliance of the structure is chosen as the objective function and its sensitivities are derived using the adjoint method.
Journal ArticleDOI
Discrete material optimization of vibrating laminated composite plates for minimum sound radiation
TL;DR: In this paper, the authors deal with vibro-acoustic optimization of laminated composite plates, where the vibration of the laminated plate is excited by time-harmonic external mechanical loading with prescribed frequency and amplitude, and the design objective is to minimize the total sound power radiated from the surface of a laminate plate to the surrounding acoustic medium.
Journal ArticleDOI
Stiffness-based optimization framework for the topology and fiber paths of continuous fiber composites
TL;DR: In this paper, a novel framework for the optimized topology and the fiber paths in order to create variable stiffness designs is introduced, where the fiber orientation of each element or the fiber path is considered as the design variable.
Journal ArticleDOI
A novel fiber optimization method based on normal distribution function with continuously varying fiber path
TL;DR: In this article, the authors proposed a novel fiber orientation optimization method based on the optimized selection of discrete angles, commonly used to avoid the multiple local minima problem found in fiber oriented optimization methods that consider the fiber angle as the design variable.
References
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Journal ArticleDOI
A homogenization method for shape and topology optimization
Katsuyuki Suzuki,Noboru Kikuchi +1 more
TL;DR: In this paper, shape and topology optimization of a linearly elastic structure using a modification of the homogenization method introduced by Bendsoe and Kikuchi together with various examples which may justify validity and strength of the present approach for plane structures are discussed.
Journal ArticleDOI
On optimal orientation of orthotropic materials
TL;DR: In this paper, the optimal orientation of an anisotropic material with respect to the actual strain condition was investigated and complete analytical results were derived, including local as well as global maxima and minima.
Journal ArticleDOI
Shape optimization of structures for multiple loading conditions using a homogenization method
TL;DR: In this article, a formulation for shape optimization of elastic structures subject to multiple load cases is presented, where the problem is solved using a homogenization method, and it is shown that the more general formulation can produce more stable designs while it introduces little additional complexity.
Journal ArticleDOI
On thickness and orientational design with orthotropic materials
TL;DR: In this paper, sensitivity analysis for strain energy with anisotropic elasticity is applied to thickness and orientational design of laminated membranes, and the first order gradients of the total elastic energy are primarily used in an optimality criteria based method.