Acta Mechanica Sinica最新文献

{"title":"Crack-tip field properties of an inclined crack terminating at the interface of anisotropic magnetoelectroelastic bimaterials","authors":"Chao Wen \u0000 (,&nbsp;),&nbsp;Zhen Yan \u0000 (,&nbsp;),&nbsp;Wenjie Feng \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25730-x","DOIUrl":"10.1007/s10409-025-25730-x","url":null,"abstract":"<div><p>In this paper, it is firstly derived for the analytic expressions of the crack-tip field when an inclined crack terminates at the interface of anisotropic (AI) magnetoelectroelastic bimaterials based on the Stroh method and the concept of axis conjugation. Particular attention is then paid to how the crack-interface angle and the constituent material properties affect the crack-tip (extended stress) singularity. By the example analyses, lots of key and novel conclusions have been drawn. Among others, for the AI magnetoelectroelastic (MEE) bimaterials, when the crack-interface angle approaches 0° or 180°, all four singularity indices exhibit oscillatory characteristics, in which two of them form a pair with equal real parts and imaginary parts opposite in sign. As the crack-interface angle varies to 90°, the oscillatory singularity disappears, but the strength of crack-tip singularity progressively intensifies. For the transversely isotropic MEE bimaterials, increasing the similarity of constituent material properties will mitigate crack-tip oscillatory behavior, while raising the BaTiO₃ volume fraction in the cracked medium will effectively reduce the crack-tip singularity. These findings are expected to be instructive for the design and application of electro-magneto-mechanical multi-field coupled layered structures and/or devices.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A PINNs-XGBoost integrated framework for offshore monopile deformation prediction","authors":"Biao Li \u0000 (,&nbsp;),&nbsp;Wengang Qi \u0000 (,&nbsp;),&nbsp;Shunyi Wang \u0000 (,&nbsp;),&nbsp;Qingkai Song \u0000 (,&nbsp;),&nbsp;Fuping Gao \u0000 (,&nbsp;)","doi":"10.1007/s10409-026-51073-x","DOIUrl":"10.1007/s10409-026-51073-x","url":null,"abstract":"<div><p>The accuracy of conventional beam models in predicting lateral pile response decreases as the pile diameter increases, due to their inability to capture complex lateral behavior when considering only lateral resistance. This study presents an integrated PINNs (Physics-Informed Neural Networks)-XGBoost (eXtreme Gradient Boosting) framework for predicting the deformation of offshore monopiles. The proposed framework accounts for the lateral deformation characteristics of both flexible and rigid piles by incorporating base resistance at the bottom boundary of the beam model. Furthermore, an XGBoost model, trained on an extensive dataset, reconstructs the distribution of soil springs along the pile, thereby supplying the PINNs with boundary conditions that realistically approximate soil-structure interactions for solving the governing beam equations. The effectiveness of this approach is validated against multiple centrifuge and field tests. The lateral responses of large-diameter monopiles under scoured conditions are also evaluated, demonstrating the model’s applicability in complex offshore environments. By eliminating the need for repetitive modeling, the approach enables efficient and comprehensive assessment of scour effects across varying depths and morphologies throughout the scour evolution process.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved non-equilibrium bounce-back boundary scheme for the incompressible lattice Boltzmann model","authors":"Boyu Yang \u0000 (,&nbsp;),&nbsp;Sheng Liao \u0000 (,&nbsp;),&nbsp;Wang Xiao \u0000 (,&nbsp;),&nbsp;Yong Zhao \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25626-x","DOIUrl":"10.1007/s10409-025-25626-x","url":null,"abstract":"<div><p>In this paper, an improved non-equilibrium bounce-back (NEBB) boundary scheme is proposed for incompressible fluid flows. The boundary scheme is meticulously derived from the incompressible lattice Boltzmann (LB) model, a widely used variant of the LB model known for its simplicity and computational efficiency. Based on the NEBB concept, a comprehensive scheme for constructing velocity and pressure boundary conditions has been developed. The numerical LB solutions obtained using the new scheme are compared with the current boundary schemes in terms of analytical solutions. By analyzing the pressure difference driven Poiseuille flow, it can be found that the numerical solution simulated by the boundary scheme proposed by us can not only better match the analytical solution than the original NEBB boundary scheme, but also maintain the second-order numerical accuracy like the non-equilibrium extrapolation boundary scheme. Our model demonstrates superior numerical stability in simulating high-Reynolds-number lid-driven cavity flows and outperforms others in modeling unsteady cylinder flow simulations. In a few words, the proposed method achieves higher accuracy and improved stability for incompressible fluid flows compared to the traditional NEBB boundary scheme.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the dynamic plastic behavior of open-celled foams by merely using their nonuniform deformation images under crushing","authors":"Jialuan Zhou \u0000 (,&nbsp;),&nbsp;Yongrou Zhang \u0000 (,&nbsp;),&nbsp;Lingling Hu \u0000 (,&nbsp;),&nbsp;Tongxi Yu \u0000 (,&nbsp;),&nbsp;Mingzhe Zhou \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25854-x","DOIUrl":"10.1007/s10409-025-25854-x","url":null,"abstract":"<div><p>Metal foams are extensively utilized in engineering due to their excellent energy-absorption capacity. The plateau stress and the densification strain of foams are the two key parameters for the energy absorbing capacity, which are conventionally gained by drawing data from the foams’ stress-strain curves, while they have been found to vary with the foam’s initial density and crushing speed. However, traditional force measurement methods require additional sensors that are often impractical in real applications. In our previous study (Hu et al., 2019), quasi-static experiments on open-celled metal foams demonstrated that instantaneous density—rather than initial density—governs the current stress, enlightening an innovative way to understand the foams’ mechanical behaviors. Under high-speed dynamic crushing, the shock-wave propagation dominates the deformation process with both stress and deformation distributed nonuniformly within the foam. In this study, based on the images obtained from numerical simulations and/or experiments, we examine whether the nonuniform stress distribution is correlated with the nonuniform deformation of the crushed foam by the relation between the current stress and the instantaneous density, which can be regarded as an inherent property of the foam as revealed in our previous study. Then we will show that both experiments and numerical simulations verified this hypothesis. According to the local density variation, the deformed foam is divided into three zones: densified zone, transition zone, and undeformed zone. Plateau stress at the impact-end and the support-end can be evaluated by the density of transition and undeformed zone, respectively, while the densification strain can be evaluated by the average density of the deformed zones (including densified and transition zones) during crushing. The evaluated results agree closely with experimental and numerical data, demonstrating that the dynamic mechanical properties of metal foams can be accurately evaluated using image-based density analysis, reducing reliance on direct force measurements.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-objective structural optimization of degradable PLLA vascular stents based on surrogate models","authors":"Mingkai Liang \u0000 (,&nbsp;),&nbsp;Yuanming Gao \u0000 (,&nbsp;),&nbsp;Qiao Li \u0000 (,&nbsp;),&nbsp;Li Shen \u0000 (,&nbsp;),&nbsp;Lingsen You \u0000 (,&nbsp;),&nbsp;Wentao Feng \u0000 (,&nbsp;),&nbsp;Buyu Deng \u0000 (,&nbsp;),&nbsp;Lizhen Wang \u0000 (,&nbsp;),&nbsp;Junbo Ge \u0000 (,&nbsp;),&nbsp;Yubo Fan \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25216-x","DOIUrl":"10.1007/s10409-025-25216-x","url":null,"abstract":"<div><p>Due to their material properties, polymer stents have relatively weak mechanical properties compared to metal stents, leading to inadequate support and premature fracture. A multi-parameter structural optimization approach for poly-L-lactic acid (PLLA) vascular stents was developed based on an extensive dataset of finite element simulations and surrogate models. This study investigated the effect of four design parameters—support ring angle (<i>θ</i>₁ and <i>θ</i>₂), link width, and stent thickness—on the support force (<i>F</i>) and maximum equivalent plastic strain (PEEQ). Surrogate models were employed to establish the functional relationship between the design parameters and the optimization objectives, while a genetic algorithm was used to identify the optimal solution. The results showed that all the proposed surrogate models provided improved predictions of stent structural performance, with the radial basis function model providing optimal results. Compared to the initial structure, the optimized stent exhibited a 24.7% increase in <i>F</i> and a 28% reduction in maximum PEEQ. The prediction errors for both <i>F</i> and PEEQ in the optimal structure were below 5%. The proposed optimization framework effectively enhanced the mechanical performance of the stent by improving structural support and reducing localized plastic deformation, offering a systematic approach for the structural optimization of PLLA vascular stents.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 10","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147828538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Near-physiological fatigue behaviors of orthopedic implants in vitro","authors":"Qirui Ma \u0000 (,&nbsp;),&nbsp;Huiwen Huang \u0000 (,&nbsp;),&nbsp;Lizhen Wang \u0000 (,&nbsp;),&nbsp;Yubo Fan \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25498-x","DOIUrl":"10.1007/s10409-025-25498-x","url":null,"abstract":"<div><p>The fatigue performance of orthopedic implants is a critical factor determining their clinical service life and reliability. Developing the <i>in vitro</i> testing systems that can closely simulate the real mechanical loading and physiological environment of orthopedic implants is essential for investigating their near-physiological fatigue behaviors. Such studies are of great significance for accurately predicting the implant fatigue life to provide guidance for structural optimization. This paper reviews the advances of <i>in vitro</i> research on the near-physiological fatigue behaviors of orthopedic implants. The construction methods of <i>in vitro</i> testing systems and techniques used to characterize the near-physiological fatigue behaviors of orthopedic implants were summarized. The influencing factors and corresponding mechanisms of the near-physiological fatigue behaviors of orthopedic implants were analyzed. Although substantial progress has been made in this field, existing <i>in vitro</i> testing systems still have limitations in simulating the complex physiological loading, dynamic bodily fluid circulation, and tissue regeneration process. Future efforts should focus on developing multi-factor coupled testing platforms enabling the integrated simulation of complex physiological loading, dynamic bodily fluid circulation, and tissue regeneration to simulate the interactions among mechanical-chemical-biological stimuli. Such advancements will facilitate the precise prediction of the near-physiological fatigue behavior of orthopedic implants and provide guidance for their performance optimization.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 11","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147828562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adhesion difference between piezoelectric quasicrystals and conventional piezoelectric materials","authors":"Tao Zheng \u0000 (,&nbsp;),&nbsp;Yueting Zhou \u0000 (,&nbsp;),&nbsp;Qinghui Luo \u0000 (,&nbsp;),&nbsp;Shenghu Ding \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25695-x","DOIUrl":"10.1007/s10409-025-25695-x","url":null,"abstract":"<div><p>Unlike conventional piezoelectric materials, quasicrystals (QCs) exhibit piezoelectric properties governed by both phason and phonon fields. As smart parts shrink to the micro-nano scale, surface adhesion becomes significant. To examine the difference of piezoelectric QCs in adhesive behavior compared with conventional piezoelectric materials, this study firstly establishes frictionless Johnson-Kendall-Roberts (JKR) and Maugis-Dugdale (M-D) models for a two-dimensional hexagonal piezoelectric quasicrystal (2D HPQC) half-space indented by a rigid conical indenter (electrically conducting or insulating). Using the superposition principle and Griffith’s energy balance, key adhesive contact parameters are derived analytically. The results of this study are verified by reducing the models to classical piezoelectricity cases reported in the literature. Numerical results demonstrate that adjusting the cone angle and electrical potential influences the adhesive contact behavior of 2D HPQC. Most significantly, the analysis indicates that the adhesive behavior of 2D HPQC shows little difference compared to corresponding results from the conventional piezoelectric framework, as modeled by extended JKR and M-D theories. This work demonstrates that conventional piezoelectric contact theories are sufficient for modeling the adhesion behavior of 2D HPQC for given the specified material coefficients, thereby offering a critical simplification for the design and analysis of QCs-based devices.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phononic crystal design: maximizing and customizing bandgaps using parameterized level set method-based topology optimization","authors":"Peng Wei \u0000 (,&nbsp;),&nbsp;Haoran Wu \u0000 (,&nbsp;),&nbsp;Haijian Fan \u0000 (,&nbsp;),&nbsp;Xiaodong Huang \u0000 (,&nbsp;),&nbsp;Xueping Li \u0000 (,&nbsp;),&nbsp;Shutian Liu \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25746-x","DOIUrl":"10.1007/s10409-025-25746-x","url":null,"abstract":"<div><p>Phononic crystals are metamaterials capable of controlling the propagation of elastic waves through the periodic arrangement of unit cells. This study introduces a two-step method for the precise customization of bandgaps in phononic crystals, allowing for the attainment of specified bandwidths within a defined frequency range, in contrast to previous research primarily focused on maximizing bandwidth. The approach involves constructing two objective functions to maximize and tailor bandgaps effectively using a parameterized level set method with the level set band. Furthermore, an alternative scheme is innovatively proposed to achieve a smooth transition from the first stage to the second stage. This innovative strategy stabilizes the optimization process while maintaining the merits of the level set method in generating clear and smooth structures. Additionally, a multiple eigenvalue problem is addressed to obtain sensitivity information. Numerical simulations conducted in COMSOL demonstrate that wave propagation in the optimized structures is successfully confined within targeted maximum and designated bandgaps for both waveguide and energy harvesting models. A notable feature of this method is the independence from initial designs, as similar optimized structures can be achieved from uniformly or randomly distributed initial configurations in the bandgap maximization process. This research provides new insights into the design of phononic crystal bandgaps.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of compressive deformation on the martensitic transformation temperature in superconducting Nb3Sn","authors":"Yuxin He \u0000 (,&nbsp;),&nbsp;He Ding \u0000 (,&nbsp;),&nbsp;Gesheng Xiao \u0000 (,&nbsp;),&nbsp;Lin Yang \u0000 (,&nbsp;),&nbsp;Li Qiao \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25383-x","DOIUrl":"10.1007/s10409-025-25383-x","url":null,"abstract":"<div><p>Superconducting Nb₃Sn, which is designed for high-field magnet fabrication, offers considerable potential for applications that range from the international thermonuclear experimental reactor to demonstration power plants (DEMO). Strain effects in Nb₃Sn superconductors are a critical issue for their engineering application in superconducting magnets, and the origin of anomalous low-temperature resistivity changes in strained Nb₃Sn remains debated. By analyzing the phonon and electronic properties of uniaxially strained Nb₃Sn during phase transitions, we develop a semianalytical trans-scale electromechanical model to characterize its low-temperature resistivity. The strain dependence of martensitic transformation temperature (Ms) is quantitatively derived from characteristic variations in normal-state resistivity under coupled thermomechanical loading. Our computation and analysis reveal the effect of compression deformation on the tetragonal-to-cubic phase transition of superconducting Nb₃Sn. Below the Ms, the variation in resistivity with temperature is predominantly governed by strain-induced changes in electronic density of states (DOS). Near the Ms point, temperature-dependent resistivity arises from the competitive interplay between strain-dependent electronic and phonon DOS variations and is accompanied with elevating Ms with increasing applied strain. Our study deepens the understanding of strain effects in superconducting Nb₃Sn, providing critical insights for establishing the relationship between phase structure and strain-affected resistivity and advancing material applications in future DEMO magnets.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling noise in quantum computing of scalar convection","authors":"Jiahua Yang \u0000 (,&nbsp;),&nbsp;Zhen Lu \u0000 (,&nbsp;),&nbsp;Yue Yang \u0000 (,&nbsp;)","doi":"10.1007/s10409-026-51281-x","DOIUrl":"10.1007/s10409-026-51281-x","url":null,"abstract":"<div><p>Quantum computing holds potential for accelerating the simulation of fluid dynamics. However, hardware noise in the noisy intermediate-scale quantum era significantly distorts simulation accuracy. Although error magnitudes are frequently quantified, the specific physical effects of quantum noise on flow simulation results remain largely uncharacterized. We investigate the influence of gate noise on the quantum simulation of one-dimensional scalar convection. By employing a quantum spectral algorithm where ideal time advancement affects only Fourier phases, we isolate and analyze noise-induced artifacts in spectral magnitudes. We derive a theoretical transition matrix based on Hamming distances between computational basis states to predict spectral decay, and then validate this model against density-matrix simulations and experiments on a superconducting quantum processor. Furthermore, using data-driven sparse regression, we demonstrate that quantum noise manifests in the effective partial differential equation primarily as artificial diffusion and nonlinear source terms. These findings suggest that quantum errors can be modeled as deterministic physical terms rather than purely stochastic perturbations.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}