International Journal of Mechanical Sciences最新文献

{"title":"Bioinspired frog adaptive-mass quasi-zero stiffness vibration isolator","authors":"Wentao Wu ,&nbsp;Tianci Jiang ,&nbsp;Guangdong Sui ,&nbsp;Xiaobiao Shan ,&nbsp;Chenghui Sun ,&nbsp;Xiyan Xie ,&nbsp;Chunyu Zhou","doi":"10.1016/j.ijmecsci.2025.110509","DOIUrl":"10.1016/j.ijmecsci.2025.110509","url":null,"abstract":"<div><div>This study proposes and systematically investigates a bioinspired frog vibration isolator (BFVI) featuring quasi-zero stiffness (QZS) characteristics and adaptive load capacity, aiming to address the degradation in vibration isolation performance commonly observed in traditional isolators under varying load conditions. A composite electromagnetic structure integrating horizontal and vertical configurations is constructed. The electromagnetic force model is derived using the filament method, and the influence of key geometric parameters—including structural rod length, initial angle, magnet dimensions, and current intensity—on the quasi-zero stiffness behavior is thoroughly analyzed. A nonlinear dynamic differential equation is established based on the Lagrange approach, and the harmonic balance method (HBM) is employed to reveal the transmission rate shift induced by mass variation. The effectiveness of adaptive current control in mitigating this shift is theoretically demonstrated. Furthermore, an active controller based on the nonlinear backstepping method is designed. Simulation results confirm adaptive current regulation effectively compensates for equilibrium deviation and performance loss caused by load fluctuations. Static experiments validate the QZS characteristics of the BFVI while time-varying load experiments confirm the controller's regulation capabilities and system response. Transmission rates under both fixed and adaptive current conditions are compared. Results show the system provides strong active regulation and effective low-frequency isolation under varying loads. This work offers new insights and strategies for integrating intelligent active control with bioinspired vibration isolation in complex engineering scenarios.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"301 ","pages":"Article 110509"},"PeriodicalIF":7.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking metallic glasses ultra-low friction via high-entropy effect and oxidation","authors":"Xinyi Liu ,&nbsp;Yin Du ,&nbsp;Xuhui Pei ,&nbsp;Hanming Wang ,&nbsp;Dongpeng Hua ,&nbsp;Qing Zhou ,&nbsp;Haifeng Wang","doi":"10.1016/j.ijmecsci.2025.110507","DOIUrl":"10.1016/j.ijmecsci.2025.110507","url":null,"abstract":"<div><div>Bulk metallic glasses (BMGs) hold immense potential as micro- and nano-scale engineering materials, yet their tribological performance remains limited by metastable structures and poor friction behavior. This study achieves superior nanotribological properties in a Ti₂₀Zr₂₀Cu₂₀Hf₂₀Be₂₀ high-entropy BMG (HE-BMG) by synergistically combining high-entropy design with controlled surface oxidation, overcoming limitations of conventional BMG treatments. Nano-scratch testing revealed a 40 % reduction in coefficient of friction (from 0.2 to 0.12) and a 44 % decrease in scratch depth (from 90 nm to 50 nm) for high entropy oxide amorphous surface, alongside a 90 % elastic recovery, far surpassing the as-cast counterpart. Complementary molecular dynamics simulations and nanoindentation uncovered the dual role of the high entropy oxide amorphous surface: its ionic bonding and elevated free volume suppress ploughing and adhesion, while boosting hardness and elastic modulus. This synergy arises from the HE-BMG’s uniform elemental distribution, which curbs oxygen diffusion and yields a uniquely thin yet robust oxide layer compared to traditional BMGs. These findings establish a credible framework for designing low-friction, wear-resistant BMGs, with broad implications for advanced engineering applications.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"301 ","pages":"Article 110507"},"PeriodicalIF":7.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic compression and energy absorption of nanofluidic solid-fluid composites","authors":"Wei Huang ,&nbsp;Yifan Liu ,&nbsp;Yuhang Li ,&nbsp;Zhongcheng Mu ,&nbsp;Jiayi Liu","doi":"10.1016/j.ijmecsci.2025.110506","DOIUrl":"10.1016/j.ijmecsci.2025.110506","url":null,"abstract":"<div><div>This study presents a comprehensive investigation on the dynamic energy absorption mechanisms of nanofluidic solid-fluid composites (NSFCs) through an integrated approach combining dynamic compressive experiments and molecular dynamics (MD) simulations analysis. The interrelationship between microscale nanofluidic behavior and macroscale mechanical response is extensively elucidated by examining the effects of strain rate (1000–3000 s^-1) and aspect ratio. Based on the dynamic stress equilibrium analysis, the increase in critical infiltration stress under dynamic loading may be attributed to nanoparticle clustering. The result reveals a 250 % enhancement in strain rate-dependent peak infiltration stress with increasing loading rates, attributed to the diminished loading duration that suppresses secondary elastic stage shown in quasi-static conditions. MD simulations confirm the rate-dependent infiltration characteristics while demonstrating strain rate-insensitive exfiltration initiation and duration. The loading intensity determines the number of infiltrating water molecules, and the peak infiltration stress can be efficient decreased by increasing the aspect ratio. A dual-phase energy absorption mechanism differentiating active and inactive nanofluidic behaviors is proposed to explain the effect of strain rate and aspect ratio. These findings establish a tunable design framework for NSFCs, providing fundamental insights into rate-dependent energy dissipation mechanisms for advanced impact protection applications.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"300 ","pages":"Article 110506"},"PeriodicalIF":7.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 new yield surface model considering non-uniform strain rate hardening behavior","authors":"Chongyang Zeng, Xiangfan Fang","doi":"10.1016/j.ijmecsci.2025.110504","DOIUrl":"https://doi.org/10.1016/j.ijmecsci.2025.110504","url":null,"abstract":"Uniaxial tensile tests using specimens of different geometries and stress states were performed on H340 steel sheets with various specimen orientations to rolling direction (RD) under strain rates ranging from 10<ce:sup loc=\"post\">−4</ce:sup> to 10<ce:sup loc=\"post\">3</ce:sup><ce:italic>s</ce:italic><ce:sup loc=\"post\">−1</ce:sup>. Such uniaxial tensile tests, especially simple shear tests, show clear differences in work hardening that are significantly dependent on strain rate. This phenomenon, referred to as non-uniform strain rate hardening, has not been considered in existing yield surface models. Thus, a new yield surface model, termed the YldSRH model, based on Tsai-Wu strength criterion was proposed in this study to describe the non-uniform strain rate-dependent expansion of the yield surface. All parameters in the YldSRH model are independent of each other and can be directly determined using experimental results from tensile tests conducted in different directions and stress states at various strain rates. Moreover, the YldSRH model was coupled with a rate- and temperature-dependent damage mechanics (e<ce:sup loc=\"post\">2</ce:sup>MBW) model for a combined YldSRH+e<ce:sup loc=\"post\">2</ce:sup>MBW model. The predictive capability of the YldSRH+e<ce:sup loc=\"post\">2</ce:sup>MBW model was validated by comparing the experimental and simulated force-displacement responses of different fracture specimens (SH, CH-R3, NDB-R8 and PS-R4) corresponding to different stress states at the three material orientations and at loading speeds of up to 10000 mm/s. In this study, the new model exhibited improved predictability for the dynamic anisotropic plasticity and fracture behavior of H340 compared with the existing model.","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"3 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Auxetic metamaterials with double re-entrant configuration","authors":"Changfang Zhao, Zhiqiang Meng, Jianlin Yi, Chang Qing Chen","doi":"10.1016/j.ijmecsci.2025.110505","DOIUrl":"https://doi.org/10.1016/j.ijmecsci.2025.110505","url":null,"abstract":"The load-bearing and deformation behaviors of structures and materials play a decisive role in their applicability. While re-entrant auxetic structures—a classic type of mechanical metamaterials—exhibit impressive mechanical properties, their functionality has traditionally been constrained by a single stress plateau under compression, limiting their multifunctional applications. In this study, we present an auxetic metamaterial with a double re-entrant configuration (DREC), engineered to achieve dual stress plateaus while preserving auxeticity, setting it apart through its simplicity and self-similarity. This metamaterial shows distinct two-phase behavior under quasi-static compressive loading, delineated as phase I and phase II. By leveraging stacking and symmetry programming of the DREC, we construct multi-cellular variants that possess additional phases, unlocking multi-step deformation characteristics driven by the formation and transformation of new configurations and showing a significant improvement in specific energy absorption over the conventional re-entrant configuration. Theoretical models, based on Euler beam and plastic hinge theories, have been developed that effectively capture the mechanical behavior of the DREC metamaterials. This work opens new avenues for engineering applications that demand adaptable and high-performance mechanical responses.","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"269 1","pages":""},"PeriodicalIF":7.3,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phase-field modeling of fracture and healing in BioFiber-Reinforced Concrete","authors":"Amirreza Sadighi ,&nbsp;Sean Kerrane ,&nbsp;Hsiao Wei Lee ,&nbsp;Li Meng ,&nbsp;Mohammad Houshmand Khaneghahi ,&nbsp;Seyed Ali Rahmaninezhad ,&nbsp;Divya Kamireddi ,&nbsp;Yaghoob (Amir) Farnam ,&nbsp;Christopher M. Sales ,&nbsp;Caroline Schauer ,&nbsp;Ahmad R. Najafi","doi":"10.1016/j.ijmecsci.2025.110447","DOIUrl":"10.1016/j.ijmecsci.2025.110447","url":null,"abstract":"<div><div>Self-healing concrete has been extensively studied for its potential to reduce maintenance and reconstruction costs, with various strategies developed to embed healing functionality. As an alternative to vascular networks, which may compromise mechanical performance due to stress concentrations around internal channels, BioFiber Reinforced Concrete (BioFRC) introduces a damage-responsive and self-activated healing mechanism through embedded bioengineered fibers. Given the structural complexity of these fibers, a detailed numerical simulation is necessary to evaluate their fracture and healing behavior. In this study, the phase-field method is employed to simulate the damage-healing response of BioFRC, where each fiber comprises a PVA core, a middle coating layer (endospore-laden hydrogel sheath), and an outer polymeric shell that protects the inner components, a system that has not been thoroughly examined before. A parametric study is conducted across ten models with varying fiber permutations to assess the influence of hydrogel material behavior (i.e., quasi-brittle when dry and viscous when wet), fiber geometrical features, healing time (associated healing ratio), and the mechanical properties of the microbially induced calcium carbonate precipitation (MICCP), which is the healing end-product. Results show that the transition to a viscous hydrogel significantly reduces fracture resistance, while longer fibers with thinner coatings enhance energy absorption and peak force. Additionally, both healing duration (e.g., one-week vs. four-week healing) and MICCP stiffness critically affect recovery performance. These findings provide quantitative insights into the mechanical performance of BioFRCs. They also inform manufacturing strategies aimed at optimizing design by leveraging both the peak load capacity prior to fracture and the recovery behavior following fiber breakage and healing.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"301 ","pages":"Article 110447"},"PeriodicalIF":7.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topology optimization for multi-axis additive manufacturing considering overhang and anisotropy","authors":"Seungheon Shin,&nbsp;Byeonghyeon Goh,&nbsp;Youngtaek Oh,&nbsp;Hayoung Chung","doi":"10.1016/j.ijmecsci.2025.110443","DOIUrl":"10.1016/j.ijmecsci.2025.110443","url":null,"abstract":"<div><div>Topology optimization produces designs with intricate geometries and complex topologies that require advanced manufacturing techniques such as additive manufacturing (AM). However, insufficient consideration of manufacturability during the optimization process often results in design modifications that compromise the optimality of the design. While multi-axis AM enhances manufacturability by enabling flexible material deposition in multiple orientations, challenges remain in addressing overhang structures, potential collisions, and material anisotropy caused by varying build orientations. To overcome these limitations, this study proposes a novel space–time topology optimization framework for multi-axis AM. The framework employs a pseudo-time field as a design variable to represent the fabrication sequence, simultaneously optimizing the density distribution and build orientations. This approach ensures that the overhang angles remain within manufacturable limits while also mitigating collisions. Moreover, by incorporating material anisotropy induced by diverse build orientations into the design process, the framework can take the scan path-dependent structural behaviors into account during the design optimization. Numerical examples demonstrate that the proposed framework effectively derives feasible and optimal designs that account for the manufacturing characteristics of multi-axis AM.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"301 ","pages":"Article 110443"},"PeriodicalIF":7.1,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High frequency vibration calculation methods for PFCPs","authors":"Liyan Wang ,&nbsp;Yiyong Yin ,&nbsp;Linshan Qi ,&nbsp;Congfeng Qu ,&nbsp;Yongjin Yu ,&nbsp;Binhui Liu ,&nbsp;Xiujian Xia ,&nbsp;Shuofei Yang","doi":"10.1016/j.ijmecsci.2025.110502","DOIUrl":"10.1016/j.ijmecsci.2025.110502","url":null,"abstract":"<div><div>The classical transfer matrix method (CTMM) is widely used in investigating the dynamic behavior of fluid-conveying pipes. When the fluid-conveying pipe is too long or the frequency is too high, the issue of unstable numerical solutions often occurs. In response to this, several improved transfer matrix methods have been developed to improve the numerical stability of the CTMM. Nevertheless, most of these methods are primarily suited for single fluid-conveying pipe systems. There is a scarcity of studies addressing the numerical stability issues and the associated improvement techniques in parallel fluid-conveying pipes (PFCPs). Therefore, this study first establishes a dynamic model of the PFCPs, and investigates the numerical stability challenges associated with applying the CTMM to solve such systems. Additionally, a sensitivity analysis is performed to evaluate how various parameters influence numerical stability. The results indicate that the PFCPs exhibit numerical instability issues in axial, lateral, and torsional vibrations. This instability arises because the elbow pipe induces coupling among vibrations in different directions. Additionally, each single pipe within the PFCPs also demonstrates numerical instability across all vibration modes due to structural coupling. Among various factors, the length of the pipe is identified as the most critical parameter affecting its numerical stability. The hybrid energy transfer matrix method (HETMM) and stiffness transfer matrix method (STMM) are efficient approaches for improving the numerical stability of the CTMM by reducing the characteristic length. However, when applied to PFCPs, these methods result in singular and ill-conditioned matrices, thereby preventing the successful solution of such systems. Therefore, this study develops the improved hybrid energy transfer matrix method (IHETMM) and the improved stiffness transfer matrix method (ISTMM) by addressing the singular and ill-conditioned issues of matrices that arise during their solution processes. Finally, the validity of the two improved methods is confirmed through comparisons with five existing examples, while their stability and efficiency are demonstrated by contrasting them with currently improved transfer matrix methods. This study provides innovative approaches for the high-frequency numerical solution of PFCPs, thereby improving the numerical stability of CTMM in solving the dynamic response of such systems.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"301 ","pages":"Article 110502"},"PeriodicalIF":7.1,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact dynamics of a heterogeneous droplet striking cylindrical surfaces","authors":"Zhe Zhang ,&nbsp;Mingpu Wu ,&nbsp;Sunil Mehendale ,&nbsp;Jinjin Tian","doi":"10.1016/j.ijmecsci.2025.110498","DOIUrl":"10.1016/j.ijmecsci.2025.110498","url":null,"abstract":"<div><div>Heterogeneous (or compound) fluids consist of multiple immiscible components and are commonly encountered in industrial applications. Due to the diversity of their constituents and the complex structure of their interfaces, their fluid dynamics behavior differs significantly from that of typical homogeneous fluids. This paper systematically investigates the impact dynamics of heterogeneous droplets (HTDs) on cylindrical surfaces with different surface temperatures, providing a deep understanding of how temperature and cylindrical scale influence the impact dynamics of HTD. Firstly, microinjectors were employed to produce HTDs, comprising an inner core of deionized water (ICDW) and an outer shell of silicone oil (OSSO), which were then allowed to free-fall onto cylindrical surfaces maintained at various temperatures. The impact dynamics of HTDs striking cylindrical surfaces were quantitatively compared to those of HTDs impacting a horizontal metallic flat plate where Weber number was observed to produce differing effects on the inner and outer spreading diameters across the two surface geometries. Furthermore, temperature affects the degree of retraction of ICDW where cryogenic cylinders inhibit the suspension of ICDW and alter the bounce-separation behavior, regardless of the eccentricity. Utilizing a pressure transducer to measure the freezing strength of ICDW, it was found that its freezing behavior differs significantly from that of homogeneous water, providing important guidance for engineering design. Finally, an analytical expression for the maximum spreading diameter of ICDW as a function of temperature was derived by simultaneously applying the first law of thermodynamics and Fourier’s law.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"301 ","pages":"Article 110498"},"PeriodicalIF":7.1,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultra-broadband hybrid meta-porous absorbers: Serialization oriented optimization and experimental validation","authors":"Shuaixing Wang ,&nbsp;Yong Xiao ,&nbsp;Dazuo Wang ,&nbsp;Jing Jia ,&nbsp;Zhipeng Huang ,&nbsp;Jihong Wen","doi":"10.1016/j.ijmecsci.2025.110496","DOIUrl":"10.1016/j.ijmecsci.2025.110496","url":null,"abstract":"<div><div>Low-frequency acoustic meta-absorbers have received increasing attention recently. However, it is still a challenge to design an ultra-broadband acoustic meta-absorber by employing only a few subunits with simple constructions. To challenge this problem, this work proposes a type of hybrid meta-porous absorber (HMPA) consisting of simple coiled-up spaces filled with porous material blocks containing wedge-like impedance modulation channels. An analytical method for predicting the sound absorption performance of the HMPA is developed based on the double porosity theory and an approximate equivalent modeling approach, and it is verified by comparison with finite element method. The sound absorption mechanism of the HMPA is revealed, and the effects of geometrical parameters on the sound absorption performance are systematically analyzed. An optimization framework is established using a differential evolution algorithm. To meet diverse sound absorption requirements under various thickness and bandwidth constraints, a serialization oriented optimal design of the HMPA is carried out by utilizing only a few parallel subunits (two or four subunits) with simple configurations. A series of optimal HMPAs with a deep subwavelength thickness can achieve excellent sound absorption performance over an ultra-broad bandwidth covering frequencies below 200 Hz and even below 100 Hz. A typical optimal HMPA can achieve an efficient sound absorption coefficient (above 0.8) at ultra-broadband frequencies ranging from 47 Hz to 20,000 Hz. Various optimal HMPAs with different thicknesses are fabricated, and their ultra-broadband sound absorption performance is confirmed by measurements in impedance tubes and reverberation rooms. A typical HMPA specimen fabricated by only two subunits can achieve a quasi-perfect sound absorption coefficient (above 0.9) over the ultra-broadband frequency range of 46 Hz to higher than 8000 Hz. Since the proposed HMPAs have simple constructions yet ultra-broadband sound absorption performance, they can find broad applications in noise control engineering.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"301 ","pages":"Article 110496"},"PeriodicalIF":7.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}