European Journal of Mechanics A-Solids最新文献

{"title":"Yield anisotropy and failure behavior of domestic Zr-2.5Nb pressure tubes: A study combining microstructure and the Hill’48 criterion","authors":"Xikai Xu ,&nbsp;Wenjing Ding ,&nbsp;Chen Bao ,&nbsp;Yupeng Cao ,&nbsp;Guannan Zhao","doi":"10.1016/j.euromechsol.2025.105990","DOIUrl":"10.1016/j.euromechsol.2025.105990","url":null,"abstract":"<div><div>The anisotropic mechanical behavior of domestic Zr-2.5Nb alloy pressure tubes under nuclear reactor service conditions plays a critical role in their structural integrity and reliability. This study systematically investigates the multiscale mechanisms underlying anisotropy in this alloy, integrating microstructural characterization, experimental testing, and numerical modeling. The microstructure and crystallographic texture were examined using electron backscatter diffraction (EBSD), revealing a strong basal texture aligned along the circumferential direction. The critical resolved shear stress (CRSS) and Schmid factors of the dominant slip systems were analyzed to elucidate the deformation mechanisms under different loading orientations. Based on uniaxial tension, compression, and shear tests, all six anisotropy coefficients (<em>F</em>, <em>G</em>, <em>H</em>, <em>L</em>, <em>M</em>, <em>N</em>) of the Hill’48 yield criterion were experimentally calibrated for the domestic alloy. Finite element simulations incorporating these parameters accurately reproduced anisotropic yielding and fracture behaviors of shear and notched specimens, as well as curved compact tension (CCT) specimens. The Hill’48 criterion was shown to capture the directional dependence of yield strength, crack propagation, and fracture toughness with high fidelity. This work establishes, for the first time, a complete and experimentally validated Hill’48 anisotropic framework for domestic Zr-2.5Nb pressure tubes, linking microstructural texture, slip system activation, and macroscopic mechanical response. The developed anisotropic yield criterion can also be directly extended to simulate the burst behavior of full-scale pressure tubes under internal pressure, providing a reliable foundation for structural integrity assessment and safety design in nuclear reactor applications.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 105990"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749782","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 DEM-based study of the mechanical behavior and energy dissipation of metal rubber with structural nonuniformity","authors":"Yuedan Li ,&nbsp;Chunhui Zhou ,&nbsp;Zihao Huang ,&nbsp;Xianjie Shi ,&nbsp;Qiang Wan ,&nbsp;Qinwei Wang ,&nbsp;Peng Pi ,&nbsp;Zhiying Ren","doi":"10.1016/j.euromechsol.2026.106016","DOIUrl":"10.1016/j.euromechsol.2026.106016","url":null,"abstract":"<div><div>Metal rubber (MR) is widely used for vibration attenuation and noise reduction in harsh environments. However, the internal nonuniformity of MR leads to a more complex spatial distribution mechanism of energy dissipation, while the corresponding influence mechanism on the dynamic behavior remains unclear. Hence a Discrete Element Method (DEM) numerical model is developed together with a contact energy-conversion model for dissipation to investigate the nonuniformity of wire-to-wire contact turns in MR. An effective DEM-based nonuniformity nonlinear dynamics model (DEM-NND) is proposed to capture the dynamic hysteretic mechanical response across different specimen sizes. The results show pronounced Probability Distribution of Low Energy Dissipation (PDLED) and Probability Distribution of High Energy Dissipation (PDHED) within MR, evidencing strong nonuniformity in both the contact and dissipation fields. Specimen thickness markedly alters the volumetric fractions of PDLED and PDHED, thereby modulating stiffness and energy-dissipation performance. The proposed model agrees well with dynamic loading experiments in terms of hysteresis-loop morphology and dissipation capacity. Experimentally, reducing MR thickness from 15 mm to 5 mm decreased the PDHED volume fraction from 33.89 % to 19.61 %, accompanied by a 35.89 % reduction in the loss factor (<em>η</em>). This study elucidates how nonuniformity governs the macroscopic mechanical performance of MR and provides a theoretical basis and quantitative reference for structural design.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 106016"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925622","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":"Transient dynamic response of honeycomb non-pneumatic tires to obstacle impact under varying conditions","authors":"Zhou Zheng ,&nbsp;Fei Wang ,&nbsp;Haichao Zhou ,&nbsp;Darshan Dorugade ,&nbsp;Jian Qu ,&nbsp;Ran Guo ,&nbsp;Chengdong Wang ,&nbsp;Mingdi Wang ,&nbsp;Shengbin Zhao ,&nbsp;Chen Liang","doi":"10.1016/j.euromechsol.2025.106012","DOIUrl":"10.1016/j.euromechsol.2025.106012","url":null,"abstract":"<div><div>Most existing studies typically identify only one vibration mode from resonance peaks in response spectra, which limits the interpretation of the dynamic behaviour of rolling tires. This study aims to associate dominant resonance peaks with specific vibration modes by comparing their natural frequencies with those of loaded stationary tires or pneumatic counterparts, and by analysing their dependence on selected operating and design parameters. A 3D finite element (FE) model was built for a non-pneumatic tire (NPT) with honeycomb-structured spokes to investigate its spindle and contact response characteristics. Model validity was confirmed by comparing predicted load-deflection response with experimental results from a prototype tire. Transient dynamic simulations were conducted for the loaded rotating NPT impacting obstacles of varying radii under different operating and design parameters. The results show that the dominant response peaks correspond to the hop, torsion, oval-diagonal, diametric, and oval vibration modes. Amplitudes of these peaks are significantly affected by operating parameters, whereas their frequencies remain largely unchanged. Hop and torsion frequencies are particularly sensitive to design parameters related to the cell and shear band, while the diametric mode is only slightly affected. These findings improve understanding of NPT modal behaviour and provide a basis for structural optimization and performance enhancement.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 106012"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925624","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 solution temperature on mechanical properties and wrinkle resistance of 2219 aluminum alloy","authors":"Hailong Cui ,&nbsp;Bing DU ,&nbsp;Chaoyang Huang ,&nbsp;Fenghua Liu ,&nbsp;Lei Fu ,&nbsp;LiJun Wu","doi":"10.1016/j.euromechsol.2025.105997","DOIUrl":"10.1016/j.euromechsol.2025.105997","url":null,"abstract":"<div><div>The 2219 aluminum alloy has been extensively utilized in aerospace and automotive industries due to its superior mechanical properties. In these fields, parts are mainly manufactured by cold forming first, then quenching and aging. However, the high-performance manufacturing process of quenching-forming-aging developed in recent years has shown significant advantages in avoiding quenching deformation and improving mechanical properties of parts. Nevertheless, the wrinkling phenomena persist during the forming of thin-walled components. Given this, in this study, the relationship between microstructure, mechanical properties evolution, and wrinkling behavior of 2219 aluminum alloy sheets at different solution temperatures was systematically revealed by combining microstructure characterization with macroscopic numerical simulation. A verifiable mapping relationship was established between them. Key findings include: (1) Elevated solution temperature simultaneously enhances yield strength, tensile strength, and elongation while reducing the in-plane anisotropy index; (2) Higher solution temperature promotes the growth and homogeneous distribution of recrystallized grains, modifying texture components through increased Cube texture and decreased Brass/S texture fractions; (3) Increased solution temperature degrades wrinkle resistance, strongly correlated with yield strength variations. Specifically, reducing yield stress in the 45° direction while increasing it in 0° and 90° directions improves wrinkle resistance. (4) The presence of S and Brass textures helps to improve the material wrinkle resistance. The existence of Cube textures makes the material properties tend to be consistent, which is not conducive to improving the material wrinkle resistance to a certain extent. These results confirm that solution temperature optimization critically governs both mechanical properties and wrinkle resistance of 2219 aluminum alloy. This research provides valuable insights for optimizing manufacturing processes of thin-walled aluminum alloy components in industrial applications.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 105997"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797705","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":"Investigation of energy absorbing performance of Novel hybrid composite tubes with carbon fiber and metallic strip","authors":"Dursun Meriç ,&nbsp;Ali Ihsan Budur ,&nbsp;Hasan Gedikli","doi":"10.1016/j.euromechsol.2025.106002","DOIUrl":"10.1016/j.euromechsol.2025.106002","url":null,"abstract":"<div><div>Hybrid composite structures, created by combining different fibers and materials, offer improved mechanical and energy-absorbing properties by balancing the weaknesses of individual materials. The study aims to develop innovative hybrid composite tubes with circular, square, and hexagonal section geometry and to investigate their energy absorption performances. Hybrid composite tubes are manufactured using aluminum (Al6061) and steel (304 L) metal strips with continuous carbon fiber reinforcement in the fiber winding machine. Hybrid composite tubes with one, two and three metal strip layers were produced to examine the effect of the number of metal strip layers on energy absorption performance. As a result of static compression tests, absorbed energy (AE), specific energy absorption (SEA), and peak force criteria were used to evaluate the energy absorption performances of composite and hybrid composite tubes. The results showed that hybrid tubes with one-layer aluminum and one-layer steel metal strip increased AE and SEA values. In contrast, these values decreased in hybrid tubes with two- and three-layer aluminum and steel strips. In addition, it was determined that the peak force values decreased in two- and three-layer hybrid tubes.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 106002"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797707","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":"Nonlinear dynamic analysis of geometrically exact microshells with flexoelectricity based on weak form quadrature element method","authors":"Tingrui Chen ,&nbsp;Jingchun Zhang ,&nbsp;Fan Yang ,&nbsp;Run Zhang","doi":"10.1016/j.euromechsol.2025.105985","DOIUrl":"10.1016/j.euromechsol.2025.105985","url":null,"abstract":"<div><div>In this paper, a geometrically exact dynamic shell model incorporating flexoelectricity is developed, along with its formulation based on the weak form quadrature element method. The model accounts for the coupling between the strain gradient and the electric field within the framework of flexoelectricity, including size effects along the thickness direction. The validity and feasibility of the proposed formulation are demonstrated through several numerical examples involving typical geometrically nonlinear dynamic shell problems. Furthermore, the influences of the size-dependent coefficient and the flexoelectric coefficient on the dynamic response of microshell structures are investigated. In contrast to existing flexoelectric shell models, the present model employs a geometrically exact shell theory, providing an innovative framework for analyzing the dynamic behavior of flexoelectric microshells undergoing large displacements and rotations. This study is a step forward to better understand the flexoelectric effects on microshells under large deflections and also provides a feasible method to predict its nonlinear dynamic behaviors.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 105985"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797709","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":"Crack morphology effects on post-fracture tensile behavior of ionomer-laminated glass","authors":"Dongdong Xie ,&nbsp;Xing-Er Wang ,&nbsp;Jian Yang ,&nbsp;Yige Wang ,&nbsp;Zhufeng Pan ,&nbsp;Chenjun Zhao ,&nbsp;Shennan Peng","doi":"10.1016/j.euromechsol.2026.106024","DOIUrl":"10.1016/j.euromechsol.2026.106024","url":null,"abstract":"<div><div>The tensile behavior of fractured laminated glass, which is affected by crack morphology, is crucial for assessing its residual structural performance. This paper investigated the random-cracked tensile behavior of fractured SG (SentryGlas®) laminated glass with different tempering levels and glass thicknesses for the first time. Besides, the crack morphological features including fragment density and uniform parameter were captured. The uniform parameter was defined as the ratio of the minimum centroid distance of fragments to the assumed uniform centroid distance. It is shown that the equivalent stiffness and strength decrease with an increasing tempering level. The mechanical properties show a strong correlation with fragment density, whereas the uniform parameter has an insignificant correlation. It is followed by developing mesoscale numerical models considering the random crack morphology and effective adhesion of fragments. The numerical models provide a novel method for reproducing the realistic tensile behaviors of fractured laminated glass. The effective adhesion coefficient was determined and found to have a linear relationship with fragment density. The effects of tempering level, glass thickness, and SG thickness on the tensile behavior were parametrically analyzed. Furthermore, surrogate models were constructed to assess the equivalent stiffness and strength of fractured laminated glass with different design variables, providing effective approaches for post-fracture performance evaluation for the refined design under static loading and at room temperature.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 106024"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077634","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":"Nonlinear fracture analysis of a penny-shaped crack in two-dimensional hexagonal piezoelectric quasicrystal media","authors":"Yuan Li ,&nbsp;Shuhang Tang ,&nbsp;Minghao Zhao ,&nbsp;Jingli Ren","doi":"10.1016/j.euromechsol.2026.106020","DOIUrl":"10.1016/j.euromechsol.2026.106020","url":null,"abstract":"<div><div>This study examines nonlinear fracture behavior for two-dimensional hexagonal piezoelectric quasicrystal media weakened by a penny-shaped crack. An electric polarization saturation model is developed for a penny-shaped crack in this material. The nonlinear fracture model is governed by a set of boundary integral-differential equations involving normal phonon displacement and electric potential discontinuities—collectively termed extended displacement discontinuities—as the variables to be determined. Analytical solutions of the extended displacement discontinuities, extended stress intensity factors and electric yielding zone are derived for uniformly applied electric and normal phonon loadings. Based on boundary element method and extended displacement discontinuity method, a numerical method for annular loadings is proposed to solve the boundary integral-differential equations. At the same time, we propose a numerical iterative method, which can effectively solve the size of electric yielding zone. Numerical results are utilized to cross-validate the obtained analytical solutions and the proposed numerical method. Graphical illustrations are provided to demonstrate the distributions of the key physical quantities obtained by the above two methods. The analytical and numerical solutions developed in this study offer effective methodologies for further investigations of other piezoelectric quasicrystals.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 106020"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077639","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":"Phase-field modeling of fatigue-induced crack propagation in strain-hardening elastomers","authors":"Shreeraman Swamynathan ,&nbsp;Sebastian Jobst ,&nbsp;Marc-André Keip","doi":"10.1016/j.euromechsol.2026.106030","DOIUrl":"10.1016/j.euromechsol.2026.106030","url":null,"abstract":"<div><div>Engineering materials and structures are often subject to repeated and cyclic loading during the entire life of a product. Prediction of fatigue failure under such loads has been a topic of interest in the scientific community for decades. In the context of the computational modeling of fracturing, the phase-field method has attracted great attention in the last years owing to its elegant way of modeling cracks within a continuum in the form of a scalar damage field. There is also growing literature where enhancements have been proposed to numerically model fatigue effects within the phase-field framework. However, most of the existing work concentrates on elastic and elasto-plastic behavior of metallic materials within the realm of small deformations. Fatigue formulations for polymers are also largely limited to Neo–Hookean models. In the present work, we propose a modeling framework that can be applied to the numerical simulation of fatigue crack growth of strain-hardening elastomeric materials, where the inextensibility of the polymeric chains is incorporated using a Gent-like material model. Numerical studies with increasing complexities are systematically performed to exemplify the striking features of the model. In addition, Wöhler and Paris curves are simulatively generated under multiple deformation modes and compared with data from the literature.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 106030"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077641","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":"Creep rupture life prediction model combining microstructure evolution and Monkman-Grant relation for thermal and irradiation creep","authors":"Dong Tang ,&nbsp;Shilin Li ,&nbsp;Long Yu ,&nbsp;Xinfu He ,&nbsp;Xiazi Xiao","doi":"10.1016/j.euromechsol.2026.106033","DOIUrl":"10.1016/j.euromechsol.2026.106033","url":null,"abstract":"<div><div>In this work, a creep rupture life prediction model is proposed by combining the creep constitutive laws and Monkman-Grant (M-G) relation to analyze the rupture time under thermal and irradiation creep. The model could simultaneously characterize the influence of testing temperature, applied stress and irradiation damage on the steady-state creep strain rate by taking into account corresponding microstructure evolution, accurately capture the mechanism transitions during creep, and then convert the steady-state creep strain rate into macroscopic rupture life via the M-G relation. Once the irradiation effect is ignored, the model can be degraded to predict the thermal creep rupture life. Model validation is achieved by comparing theoretical results with the experimental data of 15-15Ti, 316H, P92 and 304 steels for both thermal and irradiation creep. Related mechanism analyses indicate that the shortened thermal creep rupture life with increasing stress and temperature is mainly ascribed to the accelerated activity of dislocation climb that leads to the enhancement of dislocation mobility and acceleration of creep damage accumulation. Under irradiation creep, it is the elevated vacancy diffusion coefficient that leads to the enhanced activity of dislocation climb, and finally results in the shorter irradiation creep rupture life when compared with the one under thermal creep. The proposed model could provide an efficient theoretical tool for material creep life assessment under extreme environments.</div></div>","PeriodicalId":50483,"journal":{"name":"European Journal of Mechanics A-Solids","volume":"117 ","pages":"Article 106033"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038061","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}