A modified topological sensitivity analysis extended to the design of composite multidirectional laminates structures

Sousa, Bruno Silva de; Gomes, Guilherme Ferreira; Jorge, Ariosto Bretanha; Cunha, Sebastião Simões da; Ancelotti, Antônio Carlos

doi:10.1016/j.compstruct.2018.05.145

Cited by 12 publications

(6 citation statements)

References 37 publications

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“…As solver was used a modified version of well known viscous-inviscid flow analysis code XFoil. Details of this work can be found in Section 2.11 In the work of (Sousa et al, 2018) two main problems were analyzed, namely the optimal design of multilayered composite laminates and the topological sensitivity analysis in anisotropic elastostatics. Regarding the composite design, minimal weight structures subjected to bending and Hoffmann failure criteria constraints are considered, where the design variables are the shape/topology of each ply and the stacking sequence.…”

Section: Other Optimization Techniques: Crs Algorithm and Topological...mentioning

confidence: 99%

“…A new approach for Topological Sensitivity Analysis is presented in (Sousa et al, 2018) applied to composite structural design. Topological Sensitivity Analysis allows for the assessment of the sensitivity of both the objective function and the constraints when the problem definition domain changes shape and/or topology.…”

Section: Topological Sensitivity Analysis Applied To Composite Struct...mentioning

confidence: 99%

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Model-based and Signal-Based Inverse Methods

2022

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The engineering sector drives and enables the development of a country. The formation of an engineer allows a technical capacity to evaluate, plan, design, suggest and apply all possible techniques in search of the best construction of a technological equipment. Currently, the engineer must be more and more prepared to solve existing problems in various sectors of society. It is through it that societies grow in search of progress. The recognition of engineering and the training of new professionals increases every year in Brazil. In the 2000s, the University of Brasília (UnB) went through an expansion process, resulting in the implementation of the new UnB Engineering Campus in the city of Gama (UnB-Gama, FGA). Five new undergraduate courses were created: Aerospace Engineering, Automotive Engineering, Electronic Engineering, Energy Engineering and Software Engineering. The UnB Gama Campus project converges to increase the education level of the Brazilian population, especially in the five areas of engineering activity, all in line with current national public policies, aimed at expanding the population's access to quality higher education in the country. Following the high quality teaching line, the UnB-Gama campus has the Graduate Program in Integrity of Engineering Materials (PPG-Integridade). The program has the following lines of research: Dynamics and Vibrations, Fatigue, Structural Materials, Biomaterials, Structure Fluid Interaction and Numerical Simulation of the Mechanical Behavior of Materials. This book series is an initiative of PPG-Integridade -UnB, organized as a collaborative work involving researchers, engineers, scholars, from several institutions, universities, industry, recognized both nationally and internationally.Beside the high technical quality and relevance of the topics covered in the books, this series will enable an essential internationalization of the research currently developed within the University of Brasília. Several authors from different countries also contributed to these books, enabling greater interaction between national and international research groups. This internationalization raises the level of academic education for new professionals in the field of engineering, in addition to more advanced scientific research and technological development. Additionally, this book series features a strong contribution from the industrial sector. Several professionals from different companies collaborated with the writing of some chapters in the three volumes that make up this series. These initiatives are of great strategic importance, as they allow the grouping of different technical capabilities. On the part of companies in the sector, with knowledge of market demands, and on the part of universities, by adding the technical-scientific knowledge of their team of researchers to the improvement of innovative products and services. This book should be appreciated by anyone in need of knowledge of Materials Integrity. The completeness of Discrete Modeling and Inverse Methods theory c...

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Section: Other Optimization Techniques: Crs Algorithm and Topological...mentioning

confidence: 99%

Section: Topological Sensitivity Analysis Applied To Composite Struct...mentioning

confidence: 99%

Model-based and Signal-Based Inverse Methods

2022

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“…Sousa et al (2018) [230] analysed the design of multilayered composite laminates and the topological sensitivity in anisotropic elastistatics, considering the shape/topology of each ply and the stacking sequence as the design variables. To do so, the authors combined a topological sensitivity analysis and an ACO algorithm.…”

Section: Topology Optimizationmentioning

confidence: 99%

“…The focal point of research in this area has been the inclusion of design variables and their efficient management. From a physical perspective, this means the addition of material properties, such as the strength of the material [130], the orientation of the fibre reinforcements [87,98,99,130,178,179,202,216,224,230,248,292,293], lamination parameters [246,247] or information on the microstructure of the composite and its influence on a macro-scale level [13,83,85,109,134,176,261,270,272,[276][277][278][288][289][290], the inclusion of multiple materials [177,234,291], and manufacturing or process constraints [111]. A topic of research scarcely explored is the inclusion of fracture or damage predictive models in the topology optimization of composites, only referred in [130] where the authors used the Tsai-Hill failure criteria, which was imposed as a maximum stress constraint.…”

Section: Topology Optimizationmentioning

confidence: 99%

“…Only one research [80] ex-plored the use of this approach to design an elastic-hinge. In other fields of application, the topology optimization of composite materials has evolved significantly, in particular regarding the efficient inclusion of additional material properties such as the strength of the material [130], the orientation of the fibre reinforcements [87,98,99,130,178,179,202,216,224,230,248,292,293], lamination parameters [246,247] or information of the microstructure of the composite and its influence on a macro-scale level [13,83,85,109,134,176,261,270,272,[276][277][278][288][289][290], the inclusion of multiple materials [177,234,291], and manufacturing or process constraints [111].…”

Section: Final Remarks On the Design And Optimization Of Self-deployable Damage Tolerant Composite Structurementioning

confidence: 99%

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