International Journal of Mechanical Sciences最新文献

{"title":"Bio-inspired perturbated hierarchical mechanical metamaterial for energy absorption","authors":"Yinan Zhu ,&nbsp;Zijue Chen ,&nbsp;Yuman Zhu ,&nbsp;Matthieu Gresil ,&nbsp;Yunlong Tang","doi":"10.1016/j.ijmecsci.2025.110847","DOIUrl":"10.1016/j.ijmecsci.2025.110847","url":null,"abstract":"<div><div>Mechanical metamaterials inspired by the disordered and hierarchical structure of natural materials show promising potential in enhancing stress dissipation, damage tolerance and energy absorption. However, translating these bio-inspired principles into tunable and manufacturable architectures remains a critical challenge, requiring advances in multiscale design and predictive modeling. To mimic nature’s ability to balance structural disorder with hierarchy, a computationally driven metamaterial design that integrates controlled random perturbations with periodic hierarchical unit cells is presented. This design exploits the sequential collapse behavior of hierarchical structures and perturbation-induced post-yielding hardening to improve energy absorption capacity under predefined allowable stress constraints, optimized through Bayesian methods. The optimized metamaterials achieve increases in energy absorption of up to 112.7% and 46.8% at different allowable stress levels, compared to a baseline structure. These results demonstrate that controlled disorder enhances mechanical performance and enables a new paradigm for tunable, non-periodic metamaterials under varied application conditions.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110847"},"PeriodicalIF":9.4,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222950","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":"Solid oxide cell stack operating parameter optimization considering various stresses","authors":"Weiqiang Cai ,&nbsp;Ruidong Zhou ,&nbsp;Sunyao Jiang ,&nbsp;Kaihua Sun ,&nbsp;Liusheng Xiao ,&nbsp;Fu Wang ,&nbsp;Chunfei Zhang ,&nbsp;Jinliang Yuan ,&nbsp;Chao Xie","doi":"10.1016/j.ijmecsci.2025.110877","DOIUrl":"10.1016/j.ijmecsci.2025.110877","url":null,"abstract":"<div><div>In this study, the finite element method is applied to evaluate and optimize operating parameters for large-scale solid oxide cell stacks by involving detailed-structure stress model and homogenized-structure multi-physics computational fluid dynamics model. A proposed one- and two-step temperature gradient evaluation method (combining end-plate unilateral difference and internal-cell central difference) is employed to establish a quantitative relationship between inter-cell temperature gradients and maximum stress, and to define a “safe operating window” criterion. It is found that cell residual stress establishes a preloaded mechanical state and dominates multi-stress coupling affecting the stress distribution in the stack. When further coupled with bolt-preload-induced assembly stress, the compressive stress is amplified in critical regions from 62.92 MPa (the assembly stress alone) to 565.81 MPa, while the stress concentration is intensified on vulnerable areas such as the electrolyte layers. Subsequent coupling with the stack operation-induced thermal stress drives the tensile stress to 700–1000 MPa. This multi-stress coupling narrows the operating window, with critical temperature gradient thresholds identified as 36.4 K·cm⁻¹ and 40.2 K·cm⁻¹ under assembly-thermal coupling, and 21.5 K·cm⁻¹ and 29.1 K·cm⁻¹ when all stresses are included. Guided by the safe threshold of 21.5 K·cm⁻¹, the stack operating parameters are further optimized to balance the trade-off between electrochemical performance and mechanical constraints.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110877"},"PeriodicalIF":9.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159324","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":"In-situ analysis on tensile deformation behavior of impact welding joint","authors":"Xi Jiang ,&nbsp;Haiping Yu","doi":"10.1016/j.ijmecsci.2025.110858","DOIUrl":"10.1016/j.ijmecsci.2025.110858","url":null,"abstract":"<div><div>As a solid-state impact welding technique, magnetic pulse welding has previously been applied in aircraft flight control tubes, end enclosures for nuclear fuel rods, automotive transmission shafts, etc. However, current reports focus on optimizing the manufacturing process to achieve superior mechanical properties of the joints, neglecting their dynamic response under stress. This study provides the first insights into the synergistic deformation effects of the welding zone characteristics and multiscale interface microstructure of an Al/Fe magnetic pulse welded joint under sustained loading. An innovative combination of in-situ Digital image correlation and Smooth particle hydrodynamics simulation confirms the asynchronous deformation behavior and significant strain localization in the welded zones. In-situ observations show that the waveform intermetallic compounds layer causes delay in the crack propagation originating from the weakly bonded zone by absorbing deformation energy and increasing the crack propagation path. Finally, interface cracks are hindered by the waveform interlocking interface and are deflected into the Al sheet. The combined presence of Al-Fe coherent interfaces within vortex zones, nanoscale intermetallic compounds in intermediate pockets, and amorphous layers contributes to the excellent welding strength of the waveform-interlocking interface. In addition, molecular dynamics simulation results demonstrate that dislocations originating from Fe atoms propagate into the amorphous layer, thus promoting the emission of pre-existing dislocations into Al atoms and effectively reducing the rapid stress concentration at the interface. These findings fill a gap in current research on the mechanical properties of magnetic pulse welded joints and provide valuable insights for optimizing the joint interface microstructure.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110858"},"PeriodicalIF":9.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145223311","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 unified framework for rectilinear and rotational flow-induced vibrations of a square prism","authors":"Jinlong Liu ,&nbsp;Qingxian Liu ,&nbsp;Peng Dong ,&nbsp;Weijian Ding ,&nbsp;Quan Wang","doi":"10.1016/j.ijmecsci.2025.110876","DOIUrl":"10.1016/j.ijmecsci.2025.110876","url":null,"abstract":"<div><div>A unified framework is developed in this study to investigate the flow-induced vibrations of a square prism along a circular trajectory, bridging the gap between rectilinear and rotational flow-induced vibrations (FIVs) and aiming to offer an interconnected perspective for understanding the underlying physical mechanisms of fluid-structure interactions. Comprehensive analyses of the vibration responses, phase portrait evolutions, vortex shedding patterns, work-energy characteristics, and surface pressure distributions of the square prism undergoing vortex-induced vibration and galloping are conducted using this framework and validated against experimental data. The above analyses over a wide range of trajectory radii spanning from 0.1 <em>D</em> to 100 <em>D</em> (where <em>D</em> denotes the side length of the square prism) and a broad variety of airflow velocities ranging from 0.1 m/s to 3.0 m/s, are performed for concave and convex configurations corresponding to equilibrium circular trajectory angles of 0^° and 180^°, respectively. Three principal observations are obtained. The introduction of a finite trajectory radius <em>R</em> results in configuration-dependent dynamical evolution pathways from rectilinear (<em>R</em>→∞) to rotational (<em>R</em> = 0) FIVs. For the concave configuration, the flow-body system sequentially undergoes galloping for <em>R</em>/<em>D</em> &gt; 2, forced vibrations for 0.2 ≤ <em>R</em>/<em>D</em> ≤ 2, and classical vortex-induced vibrations (VIVs) at <em>R</em> = 0. In contrast, the convex configuration demonstrates three distinct dynamic regimes: galloping for <em>R</em>/<em>D</em> ≥ 2, subharmonic VIV for 0.4 ≤ <em>R</em>/<em>D</em> ≤ 1, and classical VIV for <em>R</em>/<em>D</em> ≤ 0.2. Moreover, the subharmonic VIV regime is characterized by the emergence of an upper branch triggered by a 2P (two-pair) wake mode and a higher branch triggered by either a 4(2S) or 6(2S) wake mode, corresponding to four or six successive two-single vortex shedding patterns within each oscillation cycle. Additionally, the excitation mechanism underlying FIVs is dictated by the sign of aerodynamic work: positive work gives rise to large-amplitude synchronization branches, whereas negative work leads to small-amplitude desynchronization branches.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110876"},"PeriodicalIF":9.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159339","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":"Generation principle of consistent toolpath for precision smoothing curved blades","authors":"Yilin Mu,&nbsp;Lai Zou,&nbsp;Heng Li,&nbsp;Xin Liu,&nbsp;Xiaoyu Zhao,&nbsp;Jinhao Xiao,&nbsp;Wenxi Wang","doi":"10.1016/j.ijmecsci.2025.110874","DOIUrl":"10.1016/j.ijmecsci.2025.110874","url":null,"abstract":"<div><div>Achieving high-precision and uniform material removal in robotic grinding of blades remains a critical challenge in aerospace manufacturing. A major contributing factor is that existing toolpath planning methods fail to consider the flexible contact characteristics and tangential discontinuities in belt grinding, leading to uneven material removal. To address these challenges, a consistent toolpath generation method with corner smoothing is introduced for robotic belt grinding. First, cutter-contact points are discretized using an optimized constant chord height strategy and adjusted according to contact constraints. Then, the row spacing direction is determined through an iterative search algorithm to ensure uniform overlap between adjacent toolpaths. To further eliminate residual height errors, a dual-constraint interval contraction algorithm is introduced to accurately locate and suppress peak residual height regions on the blade surface. In addition, a Pythagorean-Hodograph (PH) spline-based corner smoothing algorithm is developed to effectively utilize error constraints, thereby improving the robotic feed rate at blade corners. Finally, robotic grinding experiments on turbine blades were conducted to validate the effectiveness of the proposed method. The results showed that consistent toolpath generation (CPG) method outperforms Iso-parametric toolpath generation (IPG) method with improvements of up to 41.67 % in root mean square error (RMSE) and 26.07 % in normalized root mean square error (NRMSE) across blade surfaces. Furthermore, quadratic row spacing planning led to 26.83 % and 30.77 % reductions in blade RMSE and peak-to-valley (PV) across four sections compared to without planning. Additionally, corner smoothing led to reductions of 55.95 % in root mean square (RMS) and 54.99 % in PV waviness errors compared to the unsmoothed surface.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110874"},"PeriodicalIF":9.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159334","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":"Feasibility and performance study of 2400 mm sealed piezoelectric balance","authors":"Jin Wang ,&nbsp;Qiang Chen ,&nbsp;Mingyu Yuan ,&nbsp;Shilu Mai ,&nbsp;Zongjin Ren ,&nbsp;Wei Liu","doi":"10.1016/j.ijmecsci.2025.110862","DOIUrl":"10.1016/j.ijmecsci.2025.110862","url":null,"abstract":"<div><div>To address the technical challenge of directly measuring the aerodynamic loads of large-sized and heavy aircraft models in hypersonic wind tunnel tests, this paper has developed a 2400 mm sealed piezoelectric gauge balance to meet the aerodynamic measurement requirements of large aircraft models. The piezoelectric gauge balance consists of two groups of force-sensitive elements (a total of 8), and adopts a sealed structure to protect the force-sensitive elements and avoid environmental damage, overcoming the problems of insufficient stiffness and susceptibility to temperature interference in traditional strain gauge balances. The 2400 mm large size fills the research gap of similar gauge balances. Based on the piezoelectric effect, a gauge balance structure composed of 8 three-component piezoelectric sensors is designed, and a piezoelectric coefficient matrix is established. Through simulation analysis, the structural strength of the piezoelectric gauge balance is evaluated. A calibration platform is built, and static and dynamic calibrations are carried out, analyzing performance such as linear error, repeatability, and inter-channel interference. Through decoupling matrix compensation, the inter-channel interference is reduced by up to 96.15 %. The measurement errors of the decoupled drag, lift and pitch moment directions are 0.015 %, 0.140 % and 0.065 %, respectively, and the maximum improvement effect reaches 106.5 %. Long-term effectiveness verification is conducted, and the life of the gauge balance is re-calibrated after 9 years, proving that the piezoelectric gauge balance has long-term effectiveness. A large-sized sealed piezoelectric gauge scheme is proposed, providing a new idea for wind tunnel force measurement of large aircraft models; the feasibility and long-term stability of the piezoelectric gauge balance in large-scale scenarios are verified, providing technical references for the development of related equipment.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110862"},"PeriodicalIF":9.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159335","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":"Generative inverse design of metamaterials with customized stress-strain response","authors":"Xin-Chun Zhang ,&nbsp;Zhi-Yi Song ,&nbsp;Yi-Nan Li ,&nbsp;Li-Jun Xiao ,&nbsp;Zheng Xu ,&nbsp;Li-Xiang Rao ,&nbsp;Tie-Jun Ci ,&nbsp;Xu-Long Hui","doi":"10.1016/j.ijmecsci.2025.110875","DOIUrl":"10.1016/j.ijmecsci.2025.110875","url":null,"abstract":"<div><div>This study presents an inverse design framework that integrates a multi-task variational autoencoder (VAE) with a residual predictor to achieve simultaneous structural reconstruction and mechanical response prediction of lattice-based metamaterials. In this framework, a 28-dimensional binary structural vector and its corresponding stress-strain curve are embedded into a shared latent space, enabling a bidirectional mapping between geometry and mechanical performance. A comprehensive database of over 20,000 three-dimensional lattice topologies, generated through finite element (FE) simulations under quasi-static compression, was used for model training and validation. The residual predictor enhances the stability and accuracy of the VAE in capturing nonlinear features. Under both small-sample and full-sample training regimes, the model demonstrates robust generalization and accurate curve reconstruction, with mean relative area errors (RAE) of 0.08 and 0.0036, respectively. Furthermore, inverse design experiments verify the capability of the framework to generate lattice structures tailored to customized stress-strain responses, including multi-peak, plateau, and oscillatory curves. Compared with conventional strategies, this framework provides a unified, data-driven pathway for on-demand metamaterial design, offering new opportunities for the intelligent and customizable development of architected materials in engineering applications.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110875"},"PeriodicalIF":9.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159332","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":"Mechanical property prediction of complex-configuration mechanical metamaterials based on multimodal CNN","authors":"Yansong Liu ,&nbsp;Meng Zou ,&nbsp;Yingchun Qi ,&nbsp;Zhanhong Guo ,&nbsp;Hailong Yu ,&nbsp;Liqian Shi ,&nbsp;Jiafeng Song ,&nbsp;Shucai Xu ,&nbsp;Weiguang Fan ,&nbsp;Qingyu Yu","doi":"10.1016/j.ijmecsci.2025.110872","DOIUrl":"10.1016/j.ijmecsci.2025.110872","url":null,"abstract":"<div><div>The macroscopic mechanical properties of mechanical metamaterials are strongly influenced by their microstructural geometries. However, efficient and accurate prediction of these properties remains a significant challenge, especially for large-scale datasets featuring highly diverse configurations. This study introduces a novel image-based multimodal deep learning framework that combines structural images with auxiliary indices to enable the simultaneous prediction of discrete performance indices and complete force-displacement (<em>F-D</em>) curves. To achieve this, we have constructed a high-resolution database comprising 64,000 unit-cell images (porosity <em>Ф</em> ∈ [0.3,0.8]) and developed an automated Python–Abaqus platform capable of completing the full finite element analysis process for a single configuration in approximately three seconds, thus significantly enhancing both modeling and computational efficiency. Systematic evaluations using three representative CNN backbones demonstrate that the multimodal Xception model surpasses both ResNet50 and VGG16, achieving considerably higher accuracy compared to unimodal input. High prediction accuracy is attained for performance indices (<em>R</em>² ≈ 0.97–0.99). Moreover, by integrating structure-sensitive auxiliary indices and an attention mechanism, the prediction accuracy of Poisson’s ratio is enhanced from <em>R</em>² = 0.88 to 0.93, effectively capturing the microstructure-sensitive response characteristics. For curve prediction, the average value of the area ratio metric on the validation set is 1.01, accurately reflecting nonlinear response behaviors. The proposed framework significantly advances the development of performance prediction and intelligent design methodologies for mechanical metamaterials.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110872"},"PeriodicalIF":9.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120898","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 recrystallization nucleation and grain boundaries in polycrystals","authors":"Qing Xia,&nbsp;Jingjie Cheng,&nbsp;Yibao Li","doi":"10.1016/j.ijmecsci.2025.110790","DOIUrl":"10.1016/j.ijmecsci.2025.110790","url":null,"abstract":"<div><div>Solid-state recrystallization in polycrystalline materials involves complex interactions between crystal nucleation and grain boundary migration, which significantly affect microstructure evolution and material properties. Modeling this coupled behavior is challenging due to its inherent multiscale nature. This work presents a phase-field model that captures the coupled dynamics of recrystallization nucleation and grain boundary evolution. The model integrates mesoscale boundary migration with microscale nucleation in a thermodynamically consistent framework. Based on Landau theory, a variational formulation is used to derive the governing equations, accounting for multiple energy contributions. To handle nonlinearities and multiscale coupling, a space- and time-dependent Lagrange multiplier is introduced to improve energy stability. Time discretization combines the Crank–Nicolson and Adams–Bashforth methods, while spatial derivatives are solved using Fourier spectral method with <span><math><mrow><mi>O</mi><mrow><mo>(</mo><mi>N</mi><mo>log</mo><mi>N</mi><mo>)</mo></mrow></mrow></math></span> complexity. The energy stability of our model is rigorously analyzed. Numerical results demonstrate its accuracy, efficiency, and robustness in reproducing recrystallization pathways and nucleation–boundary interactions. This framework offers a stable and scalable tool for simulating microstructure evolution and understanding multiscale coupling in complex crystalline systems.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110790"},"PeriodicalIF":9.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103412","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":"Mechanical shock reduction mechanisms of locally resonant lattice metamaterials","authors":"Yijia Liu ,&nbsp;Desen Hou ,&nbsp;Ying Li","doi":"10.1016/j.ijmecsci.2025.110864","DOIUrl":"10.1016/j.ijmecsci.2025.110864","url":null,"abstract":"<div><div>A novel locally resonant lattice metamaterial (LRLM) has been designed to meet multi-functional requirements by resolving the contradiction between high load-bearing capacity and efficient shock reduction, while ensuring reusability. This work presents the first investigation into the propagation mechanism of aperiodic oscillating (mechanical) shock loads in the LRLM, which fundamentally differs from the behavior observed under harmonic loads or transient blast/impact loads. The designed LRLM is composed of equivalent body-centered cubic (EBCC) lattices with high strength and local resonators generating tailoring band gap. The maximum relative difference in the pseudo velocity shock response spectra (PVSRS) corresponding to the LRLM and the lattice metamaterial (LM) without local resonators reaches 7.87 dB by the drop-weight test. The frequency range (&lt;767, 1024&gt; Hz) of the maximum shock reduction obtained by the drop-weight test is slightly smaller than that (&lt;820, 1244&gt; Hz) of the theoretical band gap (or negative mass density) obtained by its idealized dynamic model, and their error is attributed to the loose installations of local resonators. Furthermore, the propagation and attenuation of the shock-waveform (SW, which can be used to characterize any shock loads) with intense waveform effect in the LRLM are also investigated. The results indicate that shock reduction effects of the LRLM against SWs with larger waveform coefficients (WCs) are more remarkable than that against both harmonic waves and SWs with smaller WCs. The proposed SW shock reduction method underpins that LRLMs with vibration reduction effect can also be used to reduce shock loads as the protective structure in severe shock engineering fields.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110864"},"PeriodicalIF":9.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145121285","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}