Strength Estimation of Metal-Composite Joints With Nuismer Criterion Application

Borovskaya, Yanina Stefanovna; Glebova, Mariya Alexandrovna; Grishin, V. I.; Guseva, Natalia Vyacheslavovna

doi:10.1615/tsagiscij.2018026893

Cited by 2 publications

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“…In [8]. a computational and experimental justification of application Nuismer criterion with the characteristic value d0 estimation (3) to calculate strength of metal-composite joints produced from high strength composite ( b>50 MPa) on series of two-.…”

Section: Strength Criterion For Calculating the Load-bearing Capacity...mentioning

confidence: 99%

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Strength determination of metal composite multiple-row joints

2023

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The results obtained using standard and improved (modified) calculation methods for load distribution on fasteners and joints strength are analyzed on the examples of four types of multiple-row metal-composite joints with cover plates of various thickness and various diameters of fasteners. A modified technique based on the Nuismer criterion is used to determine the load-bearing capacity. It was determined that for all joints the difference between the calculation results and the experiment is 14 - 26% using this criterion. It’s desirable to use a modified scheme of the Nuismer criterion to improve a calculation convergence of the load-bearing capacity with experimental data. In this case, the maximum difference between the calculation results and the experimental data for the considered joints was 12.9%.

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Section: Strength Criterion For Calculating the Load-bearing Capacity...mentioning

confidence: 99%

“…and four bolted joints is carried out. Comparison of computation with experiment has shown that results that are more accurate are obtained when the characteristic size is approximated by the following formula [8]:…”

Section: Strength Criterion For Calculating the Load-bearing Capacity...mentioning

confidence: 99%

Strength determination of metal composite multiple-row joints

2023

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Strength analysis of structural elements and metal-composite joints of a flying vehicle

Grishin

Glebova

Dudarkov

et al. 2020

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The strength and load-bearing capacity analyses results for flying vehicle typical structural elements and joints are presented in the paper. Calculations were made with the use of nonlinear finite element method, implemented in software NASTRAN and ABAQUS. Structural composite panels and metal-composite joints in attachment points of moving components under consideration for research. Employed computational models and procedures, obtained results analysis process are presented. Numerical strength estimations of structural panels and joint strength confirmed with test results. On the example of a virtual test simulation of composite panels’ strength test in a shear frame, the effect of experimental conditions on obtaining results is evaluated. It is shown that boundary conditions realized in such tests cannot always give correct values of panels’ global buckling critical stress. The computation results of buckling and strength of metal-composite joints in attachment points of moving components are presented. The computation performed on a detailed model with employing solid elements and taking into account contact interaction between joint parts, geometrical and physical nonlinearities. Composite strength in bolted joints is made based on Nuismer criterion. The formed recommendations for improvement made it possible to avoid earlier failure of the considered joint in strength tests.

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Strength Estimation of Metal-Composite Joints With Nuismer Criterion Application

Cited by 2 publications

References 0 publications

Strength determination of metal composite multiple-row joints

Strength determination of metal composite multiple-row joints

Strength analysis of structural elements and metal-composite joints of a flying vehicle

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