An integrated design approach for simultaneous shape and topology optimization of shell structures

S Cai, H Zhang, W Zhang - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
In this work, a novel design approach is developed to carry out shape and topology
optimization of shell structures simultaneously. This approach effectively integrates the …

Locking-free isogeometric collocation formulation for three-dimensional geometrically exact shear-deformable beams with arbitrary initial curvature

E Marino - Computer Methods in Applied Mechanics and …, 2017 - Elsevier
This paper presents a displacement-based and a mixed isogeometric collocation
formulations for three-dimensional geometrically exact shear-deformable beams with …

Versatility of steel in correcting construction deficiencies and in seismic retrofitting of RC buildings

P Foraboschi - Journal of Building Engineering, 2016 - Elsevier
This paper presents the structural upgrade of a public school building, which did not
guarantee safety against collapse under gravity loads and which had been designed …

Bending load-carrying capacity of reinforced concrete beams subjected to premature failure

P Foraboschi - Materials, 2019 - mdpi.com
This paper investigates the ultimate flexural strength of reinforced concrete beams when
affected by premature failure due to a rotational capacity of the first plastic hinge being …

[HTML][HTML] Isogeometric structural shape optimization using automatic sensitivity analysis

J López, C Anitescu, T Rabczuk - Applied Mathematical Modelling, 2021 - Elsevier
A method for isogeometric structural shape optimization using a multilevel approach and
automated sensitivity analysis is presented in this work. The analysis mesh is obtained after …

Parameter optimization for FPSO design using an improved FOA and IFOA-BP neural network

L Wu, Y Yang, M Maheshwari, N Li - Ocean Engineering, 2019 - Elsevier
In the offshore oil industry, FPSO (floating, production, storage and offloading) units play a
leading role for the production, processing and storage of oil. The hull girder strength of …

R-Funicularity of form found shell structures

S Gabriele, V Varano, G Tomasello, D Alfonsi - Engineering Structures, 2018 - Elsevier
The study of new design methods targeted to minimize the use of materials is a theme of
great relevance nowadays; structural designers pursue structural solutions characterized by …

Simultaneous optimization of shape and topology of free-form shells based on uniform parameterization model

Y Xia, Y Wu, MAN Hendriks - Automation in construction, 2019 - Elsevier
In current optimization methods for free-form shells, the shape and topology are usually
optimized separately. These methods are based on the assumption that the shape and …

Shape optimization of shells: an R-Funicularity based approach

GR Argento, V Varano, E Marino, S Gabriele - Structures, 2024 - Elsevier
Shells with a funicular shape with respect to a given load should be able to bear it without
introducing bending. Usually, this is not possible due to boundary conditions and bending …

Fabrication-aware shape parametrisation for the structural optimisation of shell structures

R Mesnil, C Douthe, C Richter, O Baverel - Engineering Structures, 2018 - Elsevier
The difficulty to construct mechanically optimal shells may limit the use of structural
optimisation in practice. The objective of this paper is to propose a new parametric …