Mesomechanics finite-element method for determining the shear strength of mudded intercalation materials

Hu, Qijun; Shi, Rendan; Yang, Xiaoqiang; Cai, Qijie; He, Tianjun; He, Leping

doi:10.1007/s11595-017-1594-x

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…Hu Li et al utilized the finite element method to design a truss frame for a college student racing car. Their approach successfully reduced the mass while maintaining the required strength and stiffness levels [7]. Similarly, Kong Deying et al employed finite element analysis software to conduct topology design and size optimization on the frame.…”

Section: Introductionmentioning

confidence: 99%

Double Optimization Design of the Formula Racing Car Frame Based on the Variable Density Method and the Joint Variable Method

Ma,

Lu,

Wang

et al. 2023

Applied Sciences

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In the Formula Student Racing Car, the frame is a fundamental component that supports the body. The frame’s anti-deformation ability will impact the four-wheel positioning parameters of the car, which subsequently affect the car’s stability. The quality of the frame directly determines the power and efficiency of the racing car, making the frame crucial to the overall race performance. Therefore, researching lightweight frame design is particularly important to enhance frame performance and reduce its total weight. In this paper, based on the variable density method, the global topology optimization of the frame is carried out to obtain the distribution of the frame material, realize the efficient utilization of the material, and improve the torsional stiffness of the frame. Compared with the previous local topology optimization, the global topology optimization involves a wider range, and the results are more accurate. Based on the adjoint variable method, the sensitivity analysis of the frame is carried out to obtain the influence level of each design variable. The size of the frame is optimized according to the variables with high influence levels. After optimization, the total mass of the frame is reduced by 12.8%; the performance in terms of maximum displacement and maximum stress is improved; and the lightweight design of the frame is realized as a whole.

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Section: Introductionmentioning

confidence: 99%

Double Optimization Design of the Formula Racing Car Frame Based on the Variable Density Method and the Joint Variable Method

Ma,

Lu,

Wang

et al. 2023

Applied Sciences

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“…It often causes some geological disasters, such as rock-mass instability and rock landslides [5][6][7][8][9]. Many scholars have conducted engineering projects containing muddy interlayer to carry out in-depth research, and achieved important results [10][11][12][13][14][15][16]. Therefore, the study of muddy interlayer and weak interlayer has always been the focus of research in the field of engineering geology.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Shear Creep and Long-Term Strength of Clay-Type Muddy Interlayer

Guo,

Zhang,

Liu

et al. 2023

Applied Sciences

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In order to have a better understanding of the shear creep characteristics of muddy interlayer in unstable landslides, we took the more “inferior” clay muddy interlayer as the research object, and shear creep experiments under different normal stress levels were carried out by means of hierarchical loading. This paper focuses on the variation law of creep curve and its long-term strength in the clay-type muddy interlayer under different normal stresses. The results showed that the creep characteristics of clay-type muddy interlayer were obvious: at the same normal stress level, instantaneous deformation, initial creep and stable creep appeared at lower shear stress level; at the level of rupture shear stress, there were two cases: the creep curve included three stages of typical initial creep, stable creep and accelerated creep failure, or directly entered the accelerated creep stage until the specimen’s failure. The average shear and stable creep rate of the muddy interlayer specimen increased exponentially with the increase in shear stress. The empirical formula u = u0 + A [1 − e(−Bt)] + Ctn of shear strength could better reflect the creep deformation law of muddy interlayer, and the correlation coefficient R2 varies from 0.90 to 0.99. Based on the definition of long-term ultimate strength, the long-term strength of clay-type muddy interlayer was determined.

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Sensitivity Analysis of Fine-Scale Parameters in Triaxial Tests of Soil Particles Based on Discrete Elements

Lu,

Zhou,

Yin

et al. 2024

Lecture Notes in Civil Engineering

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Mesomechanics finite-element method for determining the shear strength of mudded intercalation materials

Cited by 5 publications

References 5 publications

Double Optimization Design of the Formula Racing Car Frame Based on the Variable Density Method and the Joint Variable Method

Double Optimization Design of the Formula Racing Car Frame Based on the Variable Density Method and the Joint Variable Method

Experimental Study on Shear Creep and Long-Term Strength of Clay-Type Muddy Interlayer

Sensitivity Analysis of Fine-Scale Parameters in Triaxial Tests of Soil Particles Based on Discrete Elements

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