Polymer-Based Composite Structures: Processing and Applications

Sharma, Shruti; Sowntharya, L.; Kar, Kamal K.

doi:10.1007/978-3-662-49514-8_1

Cited by 13 publications

(16 citation statements)

References 61 publications

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“…Ensuring the quality of the third winding layer is often more important than the quality of the first winding layer as it also ensures the fixing of the second placement of fibers in a longitudinal direction (second static guide line provides winding at zero angle). Therefore, constants ν 1 , ν 2 can be set ν 2 > ν 1 in the definition of cost functions F in relation (8).…”

Section: Notementioning

confidence: 99%

“…We find the global minimum of cost function F defined by relation (8) in i-th step of passage frame through the fiber-processing head, i.e.,…”

Section: Notementioning

confidence: 99%

“…MDEA is used to find TCP(i) opt for given value i, where 1 ≤ i ≤ N. The position of the frame in BCS is given by four parameters x H(i) BCS , z H(i) BCS , ϕ(i), ω(i). These parameters define the value of cost function F specified by relation (8). This means that every four parameters x H(i) BCS , z H(i) BCS , ϕ(i), ω(i) define one possible location of the frame in the i-th step of passage through the fiber-processing head.…”

Section: Use Of Differential Evolution Algorithm To Ree Trajectory Opmentioning

confidence: 99%

“…In the first experimental test, a normal 2D shape was selected, while a very complicated 3D shape was selected for the second experiment. Cost function F defined by relation (8) is used in the optimization procedure of both cases.…”

Section: Practical Experimental Verification Tests Of Optimization Prmentioning

confidence: 99%

“…It follows from values of cost function F defined by relation (8) in Figure 26 (and also in Test 1- Figure 21) that the optimized calculation method for definition of REE trajectory is more suitable than the simple non-optimized method defined in [21] for complex frame shapes.…”

Section: Figures 24 and 25 Show Graphs Of Parameters Of Optimalmentioning

confidence: 99%

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Fabrication of High-Quality Polymer Composite Frame by a New Method of Fiber Winding Process

et al. 2020

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Polymer composite frame has been frequently used in the main structural body of vehicles in aerospace, automotive, etc., applications. Manufacturing of complex curved composite frame suffer from the lack of accurate and optimum method of winding process that lead to preparation of uniform fiber arrangement in critical location of the curved frame. This article deals with the fabrication of high-quality polymer composite frame through an optimal winding of textile fibers onto a non-bearing core frame using a fiber-processing head and an industrial robot. The number of winding layers of fibers and their winding angles are determined based on the operational load on the composite structure. Ensuring the correct winding angles and thus also the homogeneity of fibers in each winding layer can be achieved by using an industrial robot and by definition of its suitable off-line trajectory for the production cycle. Determination of an optimal off-line trajectory of the end-effector of a robot (robot-end-effector (REE)) is important especially in the case of complicated 3D shaped frames. The authors developed their own calculation procedure to determine the optimal REE trajectory in the composite manufacturing process. A mathematical model of the winding process, matrix calculus (particularly matrices of rotations and translations) and an optimization differential evolution algorithm are used during calculation of the optimal REE trajectory. Polymer composites with greater resistance to failure damage (especially against physical destruction) can be produced using the above mentioned procedure. The procedure was successfully tested in an experimental composite laboratory. Two practical examples of optimal trajectory calculation are included in the article. The described optimization algorithm of REE trajectory is completely independent of the industrial robot type and robot software tools used and can also be used in other composite manufacturing technologies.

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Section: Notementioning

confidence: 99%

“…We find the global minimum of cost function F defined by relation (8) in i-th step of passage frame through the fiber-processing head, i.e.,…”

Section: Notementioning

confidence: 99%

Section: Use Of Differential Evolution Algorithm To Ree Trajectory Opmentioning

confidence: 99%

Section: Practical Experimental Verification Tests Of Optimization Prmentioning

confidence: 99%

Section: Figures 24 and 25 Show Graphs Of Parameters Of Optimalmentioning

confidence: 99%

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Fabrication of High-Quality Polymer Composite Frame by a New Method of Fiber Winding Process

et al. 2020

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Composites and Biocomposites: Manufacturing and Processing

Sapuan

Ilyas

Asyraf

2021

Safety and Health in Composite Industry

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Experimental investigation of compressive behavior and vibration properties of layered hybrid foam formed by aluminum foam/EPS-filled syntactic foam

Çıbıkçı,

Yaman

2024

J Mater Sci

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Hybrid foams are a type of composite material created by combining two foam materials. They are preferred in many applications due to their lightweight, high strength, and ability to absorb more energy. In this research, a new hybrid foam was designed for use in sandwich cores of structural materials. The hybrid foam was formed by combining closed-cell aluminum foam and expanded polystyrene (EPS)-filled syntactic foam. The EPS-filled syntactic foams were produced with the conventional mold casting technique. Uniaxial compressive behaviors (0.5 mm/min) of layered hybrid foams consisting of EPS-filled syntactic foam with three different densities and closed-cell aluminum foam were investigated experimentally and compared with conventional single-foamed materials. These results exhibited that in general, layered hybrid foams outperform conventional single-foamed materials in terms of compressive strength. Moreover, the natural frequency and damping ratio of the layered hybrid foams were investigated by vibration tests under clamped-free and free-free boundary conditions and compared to conventional single-foamed materials. It was established that the vibration damping capacity of the layered hybrid foams improved compared to the closed-cell aluminum foam. Additionally, the microstructure of the conventional single-foamed materials was examined by SEM. In the outcome of the research, the experimental results showed that layered hybrid foam provides an opportunity to design lightweight cellular materials with effective mechanical properties.

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Polymer-Based Composite Structures: Processing and Applications

Cited by 13 publications

References 61 publications

Fabrication of High-Quality Polymer Composite Frame by a New Method of Fiber Winding Process

Fabrication of High-Quality Polymer Composite Frame by a New Method of Fiber Winding Process

Composites and Biocomposites: Manufacturing and Processing

Experimental investigation of compressive behavior and vibration properties of layered hybrid foam formed by aluminum foam/EPS-filled syntactic foam

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