International Journal of Solids and Structures最新文献

英文中文

Discussion of: “A numerical study on tensile strength of low-density Kagome networks made of brittle fibers” by S.M. Mane, K.M. Liechti, R. Huang [Int. J. Solids Struct. 302 (2024) 112987]

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-02-04 DOI: 10.1016/j.ijsolstr.2025.113274

Michael Ryvkin

引用次数: 0

Response to “A numerical study on tensile strength of low-density Kagome networks made of brittle fibers”

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-02-04 DOI: 10.1016/j.ijsolstr.2025.113275

Rui Huang, Kenneth M. Liechti

引用次数: 0

Characterization of orientational order for arbitrary-shaped particles and its applications in granular assemblies

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-02-03 DOI: 10.1016/j.ijsolstr.2025.113257

Chuang Zhao , Chengbo Li

Within granular assemblies, different arrangement structures of the particles can also affect the macroscopic mechanical properties of the system. Characterizing the particle order parameter is a prerequisite for studying the properties of the system. The order parameter of arbitrarily shaped particle can be characterized by Wigner D-matrices or the super-tensor basis, and the super-tensor basis more clearly explains the physical meaning of the order parameter. However, the expressions for the super-tensor basis are complex, and explicit expressions for orders higher than three are rarely provided in the literature. This paper reveals the relationship between the super-tensor basis and the projection operators, which decomposes symmetric tensors into irreducible tensors. Explicit expression for the projection operator is provided, and the consistency with the existing recursive expression and differential expression is demonstrated. Based on this, the expression for super-tensor basis of any order is derived, and the orthogonality of super-tensor basis is provided. Finally, the sound propagation in a biaxial super-ellipsoid particle system is simulated by the discrete element method, and the sound velocity is also calculated. The results indicate that different arrangement structures can affect the sound velocity. From the perspectives of order parameter and elastic moduli, the differences in sound velocities of different packing structures are explained. The explicit expressions of the projection operator and the super-tensor basis provided in this paper facilitate the convenient calculation of the anisotropy of other physical quantities within the system, which can be utilized to elucidate the macroscopic mechanical properties of the system.

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引用次数: 0

Corrigendum to “A numerical study on tensile strength of low-density Kagome networks made of brittle fibers” [Inter. J. Solids Struct. 302 (2024) 112987]

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-01-31 DOI: 10.1016/j.ijsolstr.2025.113255

Soham M. Mane, Kenneth M. Liechti, Rui Huang

引用次数: 0

Anisotropic hyper-visco-pseudoelastic damage constitutive model for fiber-reinforced flexible composites considering a temperature effect

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-01-31 DOI: 10.1016/j.ijsolstr.2025.113254

Yifeng Dong , Zeang Zhao , Xiaoyao Xu , Yutong Fu , Heng Yang , Ying Li , Daining Fang

Fiber-reinforced flexible composites (FRFCs) and flexible structures are widely used in applications such as soft actuators and biomedical engineering owing to their excellent flexibility and toughness. However, the temperature-sensitive and history-dependent stress-softening effect during cyclic loading–unloading processes cannot be adequately described by the existing theoretical models. In this study, an anisotropic hyper-visco-pseudoelastic damage constitutive model that considers the temperature effect is established to examine the cyclic stress-softening effect and residual-deformation behavior of FRFCs. This model combines the hyper-visco-pseudoelastic theory and continuum damage mechanics while incorporating the influence of temperature. To quantify the degree of damage during cyclic loading–unloading processes, an anisotropic damage evolution law that satisfies thermodynamic constraints is proposed. Additionally, it has been demonstrated that a comprehensive consideration of viscoelasticity, pseudoelasticity, and the damage effect is crucial for accurately describing the cyclic stress-softening effect. Furthermore, a numerical computational framework is presented to analyze the cyclic softening effect and residual deformation in FRFCs and flexible structures. The effectiveness of the constitutive model and numerical computational framework are validated by conducting cyclic loading–unloading experiments at different temperatures. A good agreement is observed between the results of theoretical calculations and numerical simulations and experimental data, confirming the advantages of the proposed constitutive model and numerical computational framework in accurately describing the softening effect and residual deformation of FRFCs, soft biological tissues, and flexible structures with complex structural forms. This study provides theoretical guidance and numerical computation techniques for improving the performance stability of FRFCs and novel flexible structures.

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引用次数: 0

Circumferential wave propagation in nonlinear dielectric bilayer tubes under inhomogeneous biasing fields

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-01-28 DOI: 10.1016/j.ijsolstr.2025.113247

Zi–Hao Miao , Wei Wang , Yi–Ze Wang

Dielectric elastomer structures with large deformation and electromechanical coupling are susceptible to biasing fields and show potentials in tunable elastic wave devices. This work focuses on circumferential waves in the incompressible isotropic dielectric bilayer tube subjected to an axial pre–stretch and radial voltage. Based on the nonlinear electroelasticity theory, the deformation of the structure characterized by the Gent ideal dielectric model is elaborated. The strain–stiffening enables the bilayer tube to resist large deformation and enhances the tunability under inhomogeneous biasing fields. In order to analyze the dynamic behaviors of circumferential shear horizontal (CSH) and Lamb–like (CLT) waves, the Legendre polynomial expansion method (LPEM) is combined with the linearized incremental equations to derive the dispersion relation. It overcomes the difficulties of conventional matrix methods in dealing with radial dependent electroelastic moduli and shows good convergence. Numerical results demonstrate that the pre–stretch, voltage and strain–stiffening can change the geometry and electroelastic moduli of the dielectric tube, which exhibit the potential to tune the propagation behaviors of circumferential waves. In addition, dispersion properties of circumferential waves are sensitive to the voltage change, which indicates that the dielectric bilayer tubular systems can act as voltage–controlled elastic wave actuators and sensors.

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引用次数: 0

Coupled longitudinal and transverse damage modeling of fiber-reinforced polymers using a smeared crack approach

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-01-27 DOI: 10.1016/j.ijsolstr.2025.113252

Paulo Teixeira Goncalves , Albertino Arteiro , Nuno Rocha , Fermin Otero

Longitudinal damage, or fiber-dominated failures, is the principal contributor to the stiffness loss in multidirectional composite laminates. In this work, the 3D smeared crack model, previously developed for transverse damage in unidirectional fiber-reinforced polymer composites, is extended for the first time to include longitudinal tensile and compressive failure, considering fiber kinking using a continuum damage approach. This formulation is developed to facilitate the implementation in an implicit solver, increasing solution robustness and computational efficiency in quasi-static and long duration analyses. The smeared crack formulation is incorporated into the fiber kinking model and seamless coupled with the transverse damage evolution model to address combined loading modes and mixed mode loading. The performance of the model is evaluated using monotonic and non-monotonic damage evolution and verified with single element tests to demonstrate the consistency of the proposed formulation. Additional benchmark examples include open-hole tension and compression tests in multidirectional laminates, validated with experimental results, obtaining a good agreement in the predicted failure load, and correctly capturing the size effect.

{"title":"Coupled longitudinal and transverse damage modeling of fiber-reinforced polymers using a smeared crack approach","authors":"Paulo Teixeira Goncalves , Albertino Arteiro , Nuno Rocha , Fermin Otero","doi":"10.1016/j.ijsolstr.2025.113252","DOIUrl":"10.1016/j.ijsolstr.2025.113252","url":null,"abstract":"<div><div>Longitudinal damage, or fiber-dominated failures, is the principal contributor to the stiffness loss in multidirectional composite laminates. In this work, the 3D smeared crack model, previously developed for transverse damage in unidirectional fiber-reinforced polymer composites, is extended for the first time to include longitudinal tensile and compressive failure, considering fiber kinking using a continuum damage approach. This formulation is developed to facilitate the implementation in an implicit solver, increasing solution robustness and computational efficiency in quasi-static and long duration analyses. The smeared crack formulation is incorporated into the fiber kinking model and seamless coupled with the transverse damage evolution model to address combined loading modes and mixed mode loading. The performance of the model is evaluated using monotonic and non-monotonic damage evolution and verified with single element tests to demonstrate the consistency of the proposed formulation. Additional benchmark examples include open-hole tension and compression tests in multidirectional laminates, validated with experimental results, obtaining a good agreement in the predicted failure load, and correctly capturing the size effect.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"311 ","pages":"Article 113252"},"PeriodicalIF":3.4,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Viscohydrodynamic lubrication in conformal contacts: A numerical approach

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-01-27 DOI: 10.1016/j.ijsolstr.2025.113236

Michele Santeramo , Giuseppe Carbone , Georg Vorlaufer , Stefan Krenn , Carmine Putignano

The steady-state operation of a polymer journal bearing is investigated by means of an innovative numerical methodology, based on the definition of a viscoelastic Green’s function intrinsically accounting for the circular hallmark of the contact domain. Crucially, results show, in terms of pressure, film thickness, and friction, the occurrence of a peculiar viscoelastohydrodynamic (VEHL) regime. This has critical consequences in applications, where the bearing capacity of the system may be affected. Ultimately, by focusing on different contact configurations, we show that the VEHL regime in polymer journal bearings is governed by three independent parameters, namely the Hersey number and the dimensionless velocities of the two interacting bodies.

引用次数: 0

Impact fracture of brittle plate

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-01-26 DOI: 10.1016/j.ijsolstr.2025.113249

Jinxin Pan , Qing Peng , Xiaoming Liu , Yueguang Wei

The brittle plate, impacted by an object, may have two types of fracture, conical fracture and radial fracture, which initiate from the impact surface and the back surface, respectively. For the conical fracture of plate, we employed the energy method to obtain the critical contact force for the conical fracture, and generalized the Auerbach’s law for fracture of brittle plate. And for the radial fracture of plate, by using the thin plate theory and superposition principle, we provided the critical contact force for the radial fracture. Finally, with the elastic force solution considering flexural wave effect, we provided the critical impact speeds for two types of fractures on brittle plate, and further established partition diagram of fracture types for determining sequence of fractures on the plate under impact. The proposed fracture criterion can predict the occurrence of fracture during impact, which may guide the strength design of brittle plate.

引用次数: 0

Microstructural buckling in soft visco-hyperelastic laminates

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures

Pub Date : 2025-01-25 DOI: 10.1016/j.ijsolstr.2025.113242

Tatiana Lapina , Yuhai Xiang , Qi Yao , Dean Chen , Jian Li , Paul Steinmann , Stephan Rudykh

In this work, we study the role of visco-(hyper)elasticity in the microstructural buckling of soft laminates under compressive loads. We find that the onset of buckling is related to the contrast in specific stress components; this allows us to develop analytical estimates for the critical loading. Our numerical analysis provides details on the dependence of critical strain and wavelength on the loading strain rate. We show that by activating the viscoelasticity of the stiffer layer with an increasing strain rate, one can promote the early development of the buckling (the critical strain decreases as the strain rate is increased). The tunability of the critical strain is bounded by the limits for fast and slow loading rates. Furthermore, the buckling wavelength can be tuned through strain rate variability; this effect is stronger in laminates with lower volume fractions (of stiff layer phase), while for high volume fractions, laminates tend to develop longer wavelength instabilities with diminishing tunability.

引用次数: 0

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