An efficient reanalysis assisted optimization for variable-stiffness composite design by using path functions

Huang, Guanxin; Wang, Hu; Li, Guangyao

doi:10.1016/j.compstruct.2016.06.043

Cited by 62 publications

(17 citation statements)

References 69 publications

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“…Other strategies use a mesh description of the surface and use an optimizer algorithm to determine the optimal angle orientation in each finite element of the mesh. One of this algorithm is used in [35], [56], [58], [69] and [72]. Then methods such in [77] or the use of streamlines in [49] can be used to compute a path based on the angle found previously.…”

Section: Discussion and Future Workmentioning

confidence: 99%

Experiments with T-mesh for Constructing Bifurcation and Multi-furcation using Periodic Knot Vectors

Joshi¹,

Bhatt²

2018

CAD&A

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Design and manufacturing of composite structures are driving the next generation innovation cycles for the aerospace, automotive and energy markets. Automated fiber placement (AFP) is quickly becoming the preferred manufacturing method of those structures as it offers manufacturing automation, reduces production cycle times, and decreases human induced errors. One of the major steps towards manufacturing structures with AFP technology is the selection of the optimal layup strategy. This is limited by, not only geometrical and process parameters, but certification allowable and guidelines. This paper outlines a systematic review of the multiple layup strategies practices currently used and/or investigated for the AFP manufacturing process. The optimal layup strategy needs to be selected and verified to obtain laminates with little to no manufacturing defects. Through a methodical description, the different layup strategies found in the literature are described as well as their mathematical implementation. Following, a geometrical benchmark is presented so that new layup strategies can be compared to others based on the same reference. The article can be the foundation for any new layup strategy investigation.

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Section: Discussion and Future Workmentioning

confidence: 99%

Experiments with T-mesh for Constructing Bifurcation and Multi-furcation using Periodic Knot Vectors

Joshi¹,

Bhatt²

2018

CAD&A

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“…In this paper, laminate shells are formulated using FEM based on Mindlin-Reissner theory [27,28]. e laminate model is shown in Figure 2 with the description of coordinate systems.…”

Section: Fem Formulation Of Laminate Shellsmentioning

confidence: 99%

Simultaneous Shape and Stacking Sequence Optimization of Laminated Composite Free‐Form Shells Using Multi‐Island Genetic Algorithm

San

Xiao

Qiu

2019

Advances in Civil Engineering

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A simultaneous shape and stacking sequence optimization algorithm is presented for laminated composite free-form shells, by which the coupled effect of shape and stacking sequence can be considered. The optimization objective is determined as maximizing fundamental natural frequency to obtain largest stiffness of shells. Nonuniform rational B-spline (NURBS) is employed to represent free-form geometrical shapes. The coordinates of NURBS control points and fiber orientations are set up as continuous and discrete optimization variables, respectively, and optimized simultaneously. To improve the efficiency of the mixed continuous-discrete optimization, multi-island genetic algorithm (MIGA) is employed to search for the global result. Through several numerical examples, the performance of the proposed approach is demonstrated in comparison with the two-phase optimization method; the effect of boundary conditions and the setup of control points on optimal results are investigated, respectively.

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“…Moreover, quadratic are used as the path function of the fiber angle, which can be expressed as The parameters of Eq. (59) can be determined by genetic algorithm according to [5] strategy and the result is shown in table 2.…”

Section: Numerical Examples 41 Variable-stiffness Composite Hole Platementioning

confidence: 99%

An efficient D-vine copula-based coupling uncertainty analysis for variable-stiffness composites

Cai

Wang

et al. 2019

Composite Structures

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An efficient reanalysis assisted optimization for variable-stiffness composite design by using path functions

Cited by 62 publications

References 69 publications

Experiments with T-mesh for Constructing Bifurcation and Multi-furcation using Periodic Knot Vectors

Experiments with T-mesh for Constructing Bifurcation and Multi-furcation using Periodic Knot Vectors

Simultaneous Shape and Stacking Sequence Optimization of Laminated Composite Free‐Form Shells Using Multi‐Island Genetic Algorithm

An efficient D-vine copula-based coupling uncertainty analysis for variable-stiffness composites

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