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Structural shape optimization with geometric description and adaptive mesh refinement
TLDR
A finite element mesh generation capability which requires only boundary information is used to generate the mesh, and a solution-based adaptive mesh refinement scheme is usedto provide a more accurate estimate of the true solution. Expand
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Numerical method for shape optimization using meshfree method
Abstract.A numerical method for continuum-based shape design sensitivity analysis and optimization using the meshfree method is proposed. The reproducing kernel particle method is used for domainExpand
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Axial crush simulation of braided carbon tubes using MAT58 in LS-DYNA
This paper examines a composite damage constitutive model, MAT58, in LS-DYNA and its application for use in braided composite tube axial crush simulations. The constitutive response of MAT58 wasExpand
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Shape Optimization of Plate and Shell Structures
  • M. Botkin
  • Engineering, Materials Science
  • 1 February 1982
In the past, much of the work done in structural optimization consisted of resizing the members of fixed configuration models. There is, however, a broad class of plate and shell problems in which anExpand
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Three-dimensional shape optimization using fully automatic mesh generation
Introduction T HE technique for associating design variables with mesh data is the most crucial factor in three-dimensional shape optimization. Previously, work in three-dimensional shapeExpand
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Practical methods for a posteriori error estimation in engineering applications
TLDR
This work presents an extension of the goal-oriented error estimation technique to the engineering analysis of three-dimensional linear elastic bodies with respect to local displacement and stress components. Expand
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Meshfree analysis and design sensitivity analysis for shell structures
A unified design sensitivity analysis method for a meshfree shell structure with respect to size, shape, and configuration design variables is presented in this paper. A shear deformable shellExpand
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A Coupled Meshfree/Finite Element Method for Automotive Crashworthiness Simulations
Mesh distortion induced numerical instability is a major roadblock in automotive crashworthiness finite element simulations. Remedies such as wrapping elements with null shells and deletion ofExpand
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Shape optimization with multiple loading conditions and mesh refinement
The capability to handle multiple, static loading conditions has been added to two-dimensional-shape optimization with adaptive mesh refinement. The strain energy density variations for each meshExpand
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