Analysis of innovative methods application for production of composite integral parts

Nowadays, the degree of structural integrity is as important as the specific load bearing capacity. An integral product can be called a product obtained by combining structural elements of different configurations and functional purposes into a single object that does not contain joints. The concept of “integral”, obviously, is synonymous with the concept of “monolithic”. However, the word “monolithic” is traditionally identified with a massive structure, in which all fragments have the same order of measurement. The very concept of “degree of integration” is very conditional, since now there is no clear methodology for its assessment in quantitative terms. Issues related to the design, manufacture and operation of such products should be addressed in a comprehensive manner based on design solutions, technological capabilities, as well as data obtained as a result of strength calculations. In this paper strength calculations were made for metal and composite panels. Besides, composite panel has integral design. Production specifics of integral composite structures as well as advantages and disadvantages.

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“…It can be implemented in textile options -satin, linen, etc. Stringers are reinforced by roving in the axial direction [11].…”

Section: Panels Loaded With Distributed Load On Two Opposite Sidesmentioning

confidence: 99%

Evaluation of the possibility of developing and manufacturing integral composite structures for airframe elements

et al. 2023

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“…There are several OOA technologies in current use including resin transfer molding (RTM), vacuum‐assisted RTM, and same qualified resin transfer molding (SQRTM). The most advanced of these processes can produce high‐tech net shape aircraft components .…”

Section: Introductionmentioning

confidence: 99%

Comparison between the mechanical properties of carbon/epoxy laminates manufactured by autoclave and pressurized prepreg

et al. 2018

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An experimental study on mechanical properties, such as strength, elastic modulus and interlaminar fracture toughness of two different manufacturing processes namely autoclave vacuum bagging (AP) and resin liquid Pressurized Prepreg (PP) is outlined in this article. AP is a technique employed to create mechanical pressure on a laminate during its cure cycle. This process have for years enabled aerospace industry to maximize the physical properties of advanced composite materials. The resin liquid PP is an out‐of‐autoclave process in which prepregs are laid up onto a closed‐mold, liquid resin is injected to pressurize the laminate in order to exert the hydrostatic pressure required to consolidate the preform and eliminate any gas bubbles that may form during the setting of the resin and the cure is performed into a heated press. The experimental results indicated that laminates manufactured by the PP process exhibited an overall inferior mechanical performance when compared with the laminates obtained using the AP process. The reduction in the mechanical properties may be explained by the non‐homogeneous resin perculation, interfacial mixing of two types of resins, higher thickness and, consequently, higher resin content of the PP laminates. POLYM. COMPOS., 39:E2562–E2572, 2018. © 2018 Society of Plastics Engineers

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Uncertainty analysis of curing-induced dimensional variability of composite structures utilizing physics-guided Gaussian process meta-modeling

Zhou

Enos

Zhang

et al. 2022

Composite Structures

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Analysis of innovative methods application for production of composite integral parts

Cited by 4 publications

References 1 publication

Evaluation of the possibility of developing and manufacturing integral composite structures for airframe elements

Evaluation of the possibility of developing and manufacturing integral composite structures for airframe elements

Comparison between the mechanical properties of carbon/epoxy laminates manufactured by autoclave and pressurized prepreg

Uncertainty analysis of curing-induced dimensional variability of composite structures utilizing physics-guided Gaussian process meta-modeling

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