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  1. No Access

    Article

    Effects of surface imperfections on the boundary layer stability in a high speed flow

    The effect of surface imperfections on the second mode instability in a Mach 4.5 flow is investigated using direct numerical simulation (DNS) and stability analysis by linear stability theory (LST). Two types ...

    Geng Gong, Weibo Hu, Wenfeng Huang, Chenhui Li, Guohua Tu, Jianqiang Chen in Acta Mechanica (2024)

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    Article

    A Cosserat bond-based correspondence model and the investigation of microstructure effect on crack propagation

    Microstructure plays a significant role in the fracture behavior of the material. To analyze the microstructure effect on crack propagation, a peridynamic model named Cosserat bond-based correspondence model (...

    Zhuang Chen, **hua Chu, Diansen Yang in Computational Particle Mechanics (2024)

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    Article

    Investigation of discharging flow behavior of powder in the conical feeding silo: effect of BINSERT-type aided flowing device

    In the fluidization process of nylon powder, maintaining a uniform flow of powder in the feed silo is crucial to reduce powder agglomeration and facilitate the fluidization process. In this study, BINSERT was ...

    **angwu **ao, Bo Li, Ruitao Peng, Meiliang Chen in Computational Particle Mechanics (2024)

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    Article

    Isogeometric homogenization of unidirectional nanocomposites with energetic surfaces

    The present work aims to propose an interface-enriched isogeometric analysis strategy for predicting the size-dependent effective moduli and local stress field of periodic arrays of nanosize inhomogeneity. The...

    **aoxiao Du, Qiang Chen, Chatzigeorgiou George, Fodil Meraghni, Wei Wang in Acta Mechanica (2024)

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    Article

    Static profiles of capillary surfaces in the annular space between two coaxial cones under microgravity

    In space, surface tension plays an important role and liquid behaviour is much different from that on the ground. The static capillary surfaces in the annular space between two coaxial cones under microgravity...

    Wen Li **文, Di Wu 吴笛, Yong Li **永, Shuyang Chen 陈舒扬 in Acta Mechanica Sinica (2024)

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    Article

    Chemical short-range-order induced multiscale strengthening in refractory medium entropy alloys

    High/medium entropy alloys (H/MEAs) are generally possible to exhibit chemical short-range order (SRO). However, the complex role of SRO on mechanical properties from nano-scale to meso-scale is still challeng...

    Weizheng Lu 鲁卫征, Yang Chen 陈阳, Jia Li **甲, Peter K. Liaw in Acta Mechanica Sinica (2024)

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    Article

    Flexural vibration control of functionally graded poroelastic pipes via periodic piezoelectric design

    In this paper, the flexural wave propagation and its control of a novel piezoelectric composite pipe conveying fluid are investigated. Dual piezoelectric layers used as sensor and actuator are periodically arr...

    Yu-Hao Ding, Zhi-Qiang Chen, Feng Liang, Heow-Pueh Lee, Hao Yu in Acta Mechanica (2024)

  8. No Access

    Article

    Comprehensive study on fail-safe topological design method for 3D structures

    Fail-safe topology optimization is valuable for ensuring that optimized structures remain operable even under damaged conditions. By selectively removing material stiffness in patches with a fixed shape, the c...

    Hongxin Wang 王洪鑫, Yujun Liao 廖宇君, Guilin Wen 文桂林 in Acta Mechanica Sinica (2024)

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    Article

    Wall temperature effects on the stability of leeward vortices of a blunt inclined cone

    Streamwise vortex instability is one of the most potent mechanisms for the transition of the three-dimensional boundary layers. By using the global stability analysis methods, stability characteristics of the ...

    Ligeng Zhang 张力耕, Bingbing Wan 万兵兵, Siwei Dong 董思卫 in Acta Mechanica Sinica (2024)

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    Article

    A novel stochastic calculation scheme for dynamic response analysis of FG-GPLRC plate subject to a moving load

    This paper is the first attempt, to the best of the authors' knowledge, to explore the effect of the stochastic material parameters on the dynamic response of functionally graded graphene platelets reinforced ...

    Xuebing Zhang, Baikuang Chen, Zhanjun Shao, Qingshan Wang, ** **ang in Acta Mechanica (2024)

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    Article

    Research on pitch error phase matching of herringbone star gear system considering multi-tooth with different backlash

    Pitch error is inevitable in gear machining, and it will aggravate the vibration and noise of the herringbone star gear train (HSGT). Although the machining accuracy is limited, the dynamic performance of the ...

    Jiajun Chen 陈家俊, Rupeng Zhu 朱如鹏, Weifang Chen 陈蔚芳, Miaomiao Li **苗苗 in Acta Mechanica Sinica (2024)

  12. Article

    Open Access

    Progress in physical modeling of compressible wall-bounded turbulent flows

    Understanding, modeling and control of the high-speed wall-bounded transition and turbulence not only receive wide academic interests but also are vitally important for high-speed vehicle design and energy sav...

    Cheng Cheng 程诚, **anliang Chen 陈贤亮, Wenkai Zhu 朱文凯, Wei Shyy 史维 in Acta Mechanica Sinica (2024)

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    Article

    Wave amplitudes and contour profiles of surface Rayleigh waves in a layered half-space with transversely isotropic materials

    We present field solutions for the surface Rayleigh wave fields in a layered half-space with transversely isotropic symmetry generated by a time-harmonic point load. The objective of this work is to provide a ...

    Yung-Chi Sun, Po-Ting Chen, Tungyang Chen in Acta Mechanica (2023)

  14. No Access

    Article

    A Lagrangian particle model on GPU for contaminant transport in groundwater

    To simulate contaminant transport in groundwater, this paper proposes a parallelized Lagrangian particle model using compute unified device architecture (CUDA) on graphics processing unit (GPU) based on smooth...

    Qingzhi Hou, Chunfu Miao, Shaokang Chen, Zewei Sun in Computational Particle Mechanics (2023)

  15. No Access

    Article

    Dynamic phononic crystals with spatially and temporally modulated circuit networks

    Elastic wave mitigation covering multiple broad bands is highly demanded for modern applications in wave control. Here, we report both theoretically and experimentally on the complete investigation of a series...

    Qian Wu 吴谦, Honghua Qian 钱泓桦, Yangyang Chen 陈洋洋 in Acta Mechanica Sinica (2023)

  16. No Access

    Article

    Combination of mean-field micromechanics and cycle jump technique for cyclic response of PA66/GF composites with viscoelastic–viscoplastic and damage mechanisms

    An accelerated micromechanics framework based on the extended Mori–Tanaka transformation field analysis (TFA) and cycle jump technique is proposed to predict the homogenized response of short glass fiber-reinf...

    Qiang Chen, George Chatzigeorgiou, Gilles Robert, Fodil Meraghni in Acta Mechanica (2023)

  17. No Access

    Article

    Assessment of a new hybrid-SSOR implicit temporal scheme for turbulent flows across a wide range of Mach numbers

    The convergent efficiency and numerical stability of temporal discretization schemes for Navier-Stokes (N-S) equations are significant for engineering turbulent flow simulations. Through analysis of the origin...

    Jian Liu 刘健, Jianqiang Chen 陈坚**, Zipei Zhang 张子佩, Yufeng Yang 杨玉峰 in Acta Mechanica Sinica (2023)

  18. No Access

    Article

    Effects of nose bluntness on entropy-layer stabilities over cones and wedges

    The effects of nose bluntness on the entropy-layer stabilities in hypersonic flows over blunt cones and wedges are investigated by using linear stability theory and numerical simulation. The entropy-layer inst...

    Bingbing Wan 万兵兵, Jianqiang Chen 陈坚**, Guohua Tu 涂国华 in Acta Mechanica Sinica (2022)

  19. No Access

    Article

    The general basis-free spin and its concise proof

    In this paper, the general basis-free spin expressions are presented. Combining with the representation theorem of a multivariable tensor function, a concise proof is given. First, the basic concept of spin is...

    Chun-Yu Meng, Ming-**ang Chen in Acta Mechanica (2022)

  20. No Access

    Article

    Dynamically compressive behaviors and plastic mechanisms of a CrCoNi medium entropy alloy at various temperatures

    As an attractive class of metallic materials, single-phase CrCoNi medium-entropy alloy (MEA) has drawn much attention recently regarding their deformation behaviors, but the dynamically mechanical responses of...

    Kun Jiang 蒋坤, Jianguo Li **建国, Bin Gan 甘斌, Tian Ye 叶天 in Acta Mechanica Sinica (2022)

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