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Xueren Wang, Jie Gao, Yanchao Wang, Jianfang Bai, Zhipeng Zhao and Chao Luo
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Xu Gao, Jiyuan Wei, Jiajing Huo, Zhishuai Wan and Ying Li
An improved re-entrant negative Poisson?s ratio metamaterial based on a combination of 3D printing and machining is proposed. The improved metamaterial exhibits a superior load-carrying and vibration isolation capacity compared to its traditional counter...
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Dianwei Gao, Chunwei Zhang and Jianhua Zhang
The energy absorption capacity of materials with negative Poisson?s ratio (NPR) is attracting interest from both industry and academia due to the excellent impact resistance of the local shrinkage of materials. However, understanding the compressive beha...
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Qianning Li, Xiaofei Cao, Xingxing Wu, Wei Chen, Chunbao Li and Xiaobin Li
An improved star-shaped honeycomb (ISSH) is a kind of honeycomb structure with excellent performance. The main objective of this study was to provide some ideas for the optimization of the ISSH structure in ships. As a result, 2D-ISSH specimens were fabr...
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Kai Yan, Yong Wang, Xianghua Lai, Yanli Wang and Zhiyong Yang
The influence of saturation on the Poisson?s ratio v of reservoir sediments has an engineering significance in the field of oil and nature gas exploration. Based on a self-developed combined (BE-EE-RC) test system, under the dehydration path, the Poisson...
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Weijun Lin, Mengzhen Li, Pu Li, Qianning Li and Wei Chen
In this paper, the negative Poisson?s ratio and rigidity of a protective structure are improved to allow the structure to exert a negative Poisson?s ratio effect in multiple directions and to enhance the structural load-carrying capacity. Therefore, a 3D...
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Jiali Fan, Yuyao Li, Bing Wang, Fengwei Gu, Feng Wu, Hongguang Yang, Zhaoyang Yu and Zhichao Hu
Potato stems removal is an important part of mechanized potato harvesting. However, there is still limited research on the physical properties of potato stems, especially the determination of Poisson?s ratio and Young?s modulus. This study determined the...
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Tsara Kamilah Ridwan, Maman Hermana, Luluan Almanna Lubis and Zaky Ahmad Riyadi
This article demonstrates SQp and SQs methods as the new AVO attributes that sensitive to determine facies and fluid analysis.
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Mª Dolores Álvarez Elipe, Jesús Anaya Díaz
Pág. 209 - 214
Architecture is totally linked to the knowledge and study of geometry. The re-entrant hexatruss structure is part of the auxetic structures. These structures, characterized by its negative Poisson?s ratio, change their geometric configuration from a line...
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Jiwei Tang, Weicheng Xie, Xiaoliang Wang, Yonglin Chen and Junjie Wu
An optimal calculation method for the mechanical properties of near-space capsule materials was proposed. First, biaxial tensile tests under low tensile ratios were carried out on the envelope materials of a near-space airship. The experimental results s...
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Jicheng Huang, Kunpeng Tian, Aimin Ji, Bin Zhang, Cheng Shen and Haolu Liu
Finite element numerical simulations provide a visual and quantitative approach to studying the interaction between rigid mechanical components and flexible agricultural crops. This method is an important tool for the design of modern agricultural produc...
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Fei Guo and Jihong Ye
In order to verify the accuracy and applicability of the discrete element method (DEM) in dealing with geometrically large deformations of continuous plate structures, both a single-parameter analysis and an orthogonal design method were adopted to analy...
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Fang Luo, Shilian Zhang and Deqing Yang
To improve the anti-explosion performance of blast wall in offshore platforms, an auxetic re-entrant blast wall (ARBW) was proposed and designed based on the indentation resistance effect of an auxetic structure. Based on the numerical nonlinear dynamic ...
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Kim S. Mews, Mustafa M. Alhubail and Reza Gh. Barati
Rock brittleness is pivotal in the development of the unconventional reservoirs. However, the existence of various methods of calculating the brittleness index (BI) such as the mineral-based brittleness index (MBI), the log-based brittleness index (LBI),...
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Xin Jin, Fengchi Wang, Zhichen Wang, Ye Yang, Zhaoyang Chu, Naisheng Guo and Xin Lv
To explore the interactions and mechanisms of Thermoplastic polyurethane (TPU)-modified asphalt with different kinds of mineral fillers, a micro-mechanical model for TPU-modified asphalt mastic was established, which considered the interaction between as...
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Yu Wang, Xiang Li, Tingjia Wu and Hailian Yin
Since the taper ratio of most wings is not equal to 1, the beam-disk trailing edge deflection mechanism originally designed for the rectangular wing is not fully applicable to the non-equal chord wing. Moreover, it is not only expected that the wing shap...
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Ming Ji and Hongjun Guo
During loading and unloading test, various rocks manifest different stress values of elastic-plastic transformation. This study proposes to include axial pressure increment ratio in the conventional triaxial compression test to evaluate different variabl...
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Entong Du, Lei Zhou and Ruizhen Fei
In the construction of a shield crossing an existing mined tunnel without load, it is imperative to develop corresponding design standards that reflect actual engineering force characteristics to ensure the successful completion of the tunnel constructio...
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Mingyuan Wang, Linfeng Song, Xinglei Cheng, Jianxin Zhang, Liqiang Lu and Wenqian Li
This study derives the expression of dynamic stress components of the soil element in the semi-infinite elastic space under obliquely incident P- and SV-waves, and obtained the corresponding dynamic stress path. The effects of some factors including the ...
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Levan Glonti, Temur Enik, Vladimir Kekelidze, Alexander Kolesnikov, Dmitry Madigozhin, Natalia Molokanova, Sergey Movchan, Yuri Potrebenikov and Sergey Shkarovskiy
For the development of charged particle detectors based on straw tubes operating in vacuum, a special measurement technique is required for the evaluation of their mechanical properties. A summary of the known equations that govern straw behavior under i...
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