A novel approach for the edge rolling force and dog-bone shape by combination of slip-line and exponent velocity field

Zhang, Yufeng; Di, Hongshuang; Ling, Xu; Wen, Peng; Zhao, Dewen; Zhang, Dianhua

doi:10.1007/s42452-020-03770-3

Cited by 10 publications

(4 citation statements)

References 19 publications

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“…The epoxy resin filled with fullerene nanoparticles were found to have high ultimate tensile strength and Young's modulus properties [137]. For methodological industries, high mechanical features attained with 0.1 to 1 wt.% fullerene loadings have been found beneficial [138,139]. The compatibilizations effects owing to matrix-nanofiller interactions and fine nanoparticle scattering were responsible for the formation of high-tech polymer/fullerene nanomaterials [140].…”

Section: Fullerene Nanomaterials Towards Space Sectormentioning

confidence: 99%

Leading-Edge Polymer/Carbonaceous Nano-Reinforcement Nanocomposites—Opportunities for Space Sector

Kausar,

Ahmad

2023

Advances in Materials Science

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Carbonaceous or nanocarbon nano-reinforcement nanocomposites have been found as emergent candidates for aerospace industry. Consequently, the multifunctional nanocomposites have been fabricated using marvelous nanocarbon nanostructures like graphene, carbon nanotube, fullerene, carbon black, etc. Manufacturing techniques have also been engrossed for the formation of high performance engineering nanocomposites having fine strength, heat stability, flame resistance, and other space desired features. These practices include solution, in situ, and melt procedures, on top of specific space structural design techniques, for the formation of aerospace structures. The aerospace related material property enhancements using various carbonaceous nano-reinforcements depends upon the type of nanocarbon, dimensionality, as well as inherent features of these nanostructures (in addition to the choice of manufacturing methods). Furthermore, carbon nano-reinforcements have been filled, besides carbon fibers, in the epoxy matrices. Nanocarbon coated carbon fibers have been filled in epoxy resins to form the high performance nanomaterials for space structures. The engineering features of these materials have been experiential appropriate for the aerospace structures. Further research on these nanomaterials may be a key towards future opportunities in the aero systems. Additionally, the explorations on structure-property relationships of the carbonaceous nanocomposites have been found indispensable for the development of advanced aerospace structures.

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Section: Fullerene Nanomaterials Towards Space Sectormentioning

confidence: 99%

Leading-Edge Polymer/Carbonaceous Nano-Reinforcement Nanocomposites—Opportunities for Space Sector

Kausar,

Ahmad

2023

Advances in Materials Science

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“…From the mean value theorem of integral (Zhang et al, 2020), the mean slope k of B′E can be obtained as…”

Section: Derivation Of Average Slope Yield Criterion Yield Criterion Expressionmentioning

confidence: 99%

Modeling of Rolling Force for Thick Plate of Multicomponent Alloys and Its Application on Thickness Prediction

2021

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During the rolling process of thick plate, the nonlinear specific plastic power that derived from the non-linear Mises yield criterion is difficult to be integrated, which has restricted the establishment of a rolling force model. To solve this problem, a new yield criterion is firstly established, and then used to derive a linear specific plastic power. Meanwhile, a kinematically admissible velocity field whose horizontal velocity component obeys the Logistic function is proposed to describe the metal flow of the deformed plate. On these bases, the rolling energy items including the internal deformation power of the deformed body, friction power on the contact surface, and shear power on the entry and exit sections are integrated successively, and the rolling force model is established. It is proved that the model can predict the rolling force well when compared with the actual data of multicomponent alloys. Besides, the formula for predicting the outlet thickness is ultimately given upon this derived model, and a good agreement is also found between the predicted values and the actual ones, since the absolute errors between them are within 0.50 mm.

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“…Liu et al [22] innovatively put forward a three-dimensional kinematic tolerance velocity and strain rate field using dual flow function method and boundary conditions, and compared the calculated plate shapes with other models to prove the accuracy of the field. Zhang et al [23] proposed a new exponential velocity and strain rate field to satisfy the kinematic tolerance conditions adopting the upper bound theorem.…”

Section: Introductionmentioning

confidence: 99%

The curvature modeling for the double layered clad plate by asymmetric rolling with different diameters

Jiang,

Liang,

Chen

et al. 2024

Int J Adv Manuf Technol

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The plate curvature model plays an important role in the prediction and control of the double layered clad plate. However, there is currently no such a fast, precise and stable plate curvature model, and the actual shear stress on the cross section is uneven distributed actually which is conflicted with the uniform assumption of the traditional model. Based on the non-uniform distribution, this paper innovatively presents a theoretical plate curvature model using the flow function method and the upper bound method together without the complex stress analysis. The inlet boundary conditions of the model are more accurate modified and optimized as nonlinear functions. The velocity field and strain rate field were built depending on the flow function field. The plastic deformation, shear and friction power were developed by the five-node Gauss-Legendre quadrature method. The post-rolling strain model was obtained by integrating the positive strain rate and shear strain rate with time. The curvature model was constructed by calculating the curvature due to linear and shear strain differences. To demonstrate the validity of the theoretical model, the experiments and the simulation were conducted. The results showed that the relative deviation of the numerical values va and vb is less than 10.0%, accounting for 95.1% and 95.4%, compared with theoretical values. The shear power difference between layer a and b is the main reason for bending. The bending phenomenon appeared the outlet section of the plate, and the velocity difference provided the shear stress required for bending. The increase of the diameter ratios lead to the increase of the shear strain difference and shear power, and it leads to an increase in the total curvature. To certify the precision of the curvature model, the deviation of the theoretical peak curvature values is 12.05%, *

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A novel approach for the edge rolling force and dog-bone shape by combination of slip-line and exponent velocity field

Cited by 10 publications

References 19 publications

Leading-Edge Polymer/Carbonaceous Nano-Reinforcement Nanocomposites—Opportunities for Space Sector

Leading-Edge Polymer/Carbonaceous Nano-Reinforcement Nanocomposites—Opportunities for Space Sector

Modeling of Rolling Force for Thick Plate of Multicomponent Alloys and Its Application on Thickness Prediction

The curvature modeling for the double layered clad plate by asymmetric rolling with different diameters

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