Effects of anisotropy and off‐axis angle on buckling behavior of carbon/epoxy Z‐pin under axial pressure

Lin, Chengxiang; Song, Xiaowen; Wang, Han; Cheng, Liang; Wang, Qing; Ke, Yinglin

doi:10.1002/pc.27668

Cited by 2 publications

(1 citation statement)

References 37 publications

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“…The preparation of Z‐pin reinforced structures is identical to that of conventional composite laminates except for the implantation of Z‐pins. Therefore, researchers have so far conducted extensive research on Z‐pin reinforced composite structures to apply Z‐pin technology to aerospace structures 6–14 …”

Section: Introductionmentioning

confidence: 99%

Progressive damage analysis of Z‐pin reinforced composite laminates based on CDM

Shi,

Guo,

Niu

et al. 2024

Polymer Composites

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A RVE finite element model was developed, and the effective mechanical properties were predicted by analyzing the fine structure of Z‐pin reinforced composite laminates. A new damage criterion based on strain description is adopted, a progressive damage analysis model is established and progressive damage analysis is carried out, which provides a reference for further research on Z‐pin reinforced composites. By applying both longitudinal tensile and in‐plane shear loads to the RVE, the material strength prediction was carried out the damage evolution process was emphasized, and the stress–strain curves of the material as well as the damage modes and damage levels in different regions were finally predicted. From the damage evolution process, it can be seen that the damage in the fiber direction and the damage in the transverse direction appear the earliest and have the highest percentage of failure.Highlights The RVE model was developed and its effective mechanical properties were predicted. A new damage criterion is introduced, a UMAT subroutine is written, and a progressive damage model is developed. Material strength predictions were made for the RVE and the damage evolution process was emphasized.

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Section: Introductionmentioning

confidence: 99%

Progressive damage analysis of Z‐pin reinforced composite laminates based on CDM

Shi,

Guo,

Niu

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

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The theoretical and experimental buckling analysis of a nanocomposite beams reinforced by nanorods made of recycled materials

Bargozini,

Mohammadimehr

2023

Polymer Composites

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In this article, the numerical and experimental results for buckling analysis of a nanocomposite beams reinforced by nanorods are studied and compared. The Chebyshev–Ritz method is used to calculate the buckling numerically and compare it with the buckling test. Epoxy resin, glass's fiber, and nanorods are used to make composites. These nanorods are made using recycled materials. Also, bending and tensile tests are used to obtain the properties of these composites. In addition, the effect of various parameters such as Young's modulus, temperature change, Poisson's ratio, and boundary conditions, the strain gradient parameter, and different shape function is investigated. The addition of nanorods increases the strength and stiffness of composites and increases the critical buckling load. Actually, the made nanorods are used as a reinforcement in matrix, thus in the made nanocomposites, fracture and buckling tests are done and the results indicate that the inclusion of nanorods (0.32%) increases the critical buckling load by 16.4%. A facile hydrothermal method to synthesis the nano rodes has a less cost with the other methods, thus by adding a small percentage of it to the composite, the stiffness of the structure increases. According to the results and the significant increase in Young's modulus and critical buckling load and the cost‐effectiveness of carbon nanorods (CNRs) made from recycled materials, these environmentally friendly reinforcements can be used in various industries such as machine body construction, automobile manufacturing, shipbuilding and construction of type's turbines.Highlights Using potato peels and hydrothermal methods, CNRs produced. These CNRs are useful, and production is cheap and no harm environmental. Buckling sample include of glass fiber, without and with CNRs and epoxy resin. Third order shear deformation beam theory and Chebyshev–Ritz are used Theoretical and experimental buckling critical load are compared.

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Effects of anisotropy and off‐axis angle on buckling behavior of carbon/epoxy Z‐pin under axial pressure

Cited by 2 publications

References 37 publications

Progressive damage analysis of Z‐pin reinforced composite laminates based on CDM

Progressive damage analysis of Z‐pin reinforced composite laminates based on CDM

The theoretical and experimental buckling analysis of a nanocomposite beams reinforced by nanorods made of recycled materials

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