Article
Engineering, Civil
Wei Shen, Guiming Liang, Jiajing Lei, Chunmei Li
Summary: This study derived a simplified formula for calculating the notch stress distribution and N-SIF of double edge V-notch plate based on linear elastic fracture mechanics and singular strength theory. The evaluation formula of notch stress field was simplified by introducing the singular intensity factor 'as' and extended to arbitrary opening angles. The simple formula proposed showed high accuracy in calculating N-SIF across a wide range of opening angles and geometric sizes, making it convenient for engineering applications.
THIN-WALLED STRUCTURES
(2021)
Article
Mechanics
Wei Shen, Zishuo Wang, Kai Qin, Heqi Fu, Enqian Liu
Summary: A semi-analytical formula based on equivalent intensity factor was proposed to simplify the evaluation of notch stress and N-SIF for single edge V-notched orthotropic composite plates. By fitting a large number of numerical models, the formula allows for rapid calculation of the notch stress field and N-SIF and is applicable to composite plates with various material parameters.
COMPOSITE STRUCTURES
(2022)
Article
Mechanics
Shizhu Xing, Xianjun Pei, Jifa Mei, Chunbo Zhen, Shaojuan Su
Summary: In this paper, an alternative analytical approach for evaluating stress fields at sharp notches is presented. The method utilizes traction-based structural stress and Williams' eigenfunction methods. The effectiveness and robustness of the approach are validated by comparing analytical solutions to numerical results from finite element analysis. The approach is also extended to accommodate different loading conditions and successfully captures the stress fields in a welded cruciform joint.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Mechanics
Sara Jimenez-Alfaro, Vladislav Mantic
Summary: This paper systematically studies the Mode III crack-tip solution for a semi-infinite crack located in a straight spring interface in an infinite linear elastic isotropic solid. A new analytic expression is provided for this crack-tip solution in the form of a double asymptotic series. The series of shadow terms associated with a main term is found to be infinite, and all shadow terms contain logarithmic terms. The present results have important implications for numerical modeling and benchmark testing of interface cracks.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Mechanics
Yongyu Yang, Changzheng Cheng, Timon Rabczuk, Zhongrong Niu, Raj Das
Summary: In this paper, a numerical method combining asymptotic expansion and boundary element method (CBEM) is developed to analyze the complete singular stress field of linear hardening elastic-plastic material with a V-notch. The method transforms the singularity analysis for the V-notch tip into an ordinary differential eigenvalue equation, which is then solved using the interpolating matrix method. The complete singular stress field and the notch stress intensity factors (SIFs) are obtained by coupling the asymptotic expansion of the elastic-plastic singular stresses with the boundary element method. The proposed approach is found accurate and effective in evaluating singular stress fields in a V-notch structure with linear hardening material.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Mechanics
Lifeng Ma, Yifeng Chen, David A. Hills
Summary: This study examines the interaction between a parabolic notch and a generalized antiplane singularity, and derives its analytical solution. It is found that the driving force on the screw dislocation caused by the notch free boundary can eliminate dislocations. The solutions developed in this study can be used to model material damage near a parabolic notch under antiplane load conditions and quantify crack nucleation conditions.
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
(2022)
Article
Materials Science, Multidisciplinary
Cong Li, Bin Hu, Zhongrong Niu, Zongjun Hu, Changzheng Cheng
Summary: The aim of this study is to determine the complete elastic-plastic stress asymptotic solutions at the plane V-notch tip with different boundary conditions. By using asymptotic expansions and the interpolating matrix method, the stress and displacement eigen-solutions at the notch tip were successfully obtained, demonstrating great versatility and accuracy.
ACTA MECHANICA SOLIDA SINICA
(2021)
Article
Mechanics
Weichen Kong, Shuaifeng Ma, Yanwei Dai, Yinghua Liu
Summary: This paper studies the tip stress field of a plane stress sharp V-notch and provides an analytical solution. By comparing it with the finite element solution, the asymptotic solution shows good agreement. The research results have significance in evaluating the plane stress sharp V-notch tip field under creeping conditions.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Engineering, Civil
S. Cicero, M. Sanchez, B. Arroyo, J. D. Fuentes, J. A. Alvarez
Summary: This paper presents a methodology for evaluating the structural integrity of tubular beams containing U-notches, specifically focusing on cantilever beams with through thickness U-notches. The results obtained in Al6060 and PVC tubular cantilever beams demonstrate that the proposed approach provides accurate predictions of failure loads.
ENGINEERING STRUCTURES
(2021)
Article
Physics, Fluids & Plasmas
Sadjad Arzash, Jordan L. Shivers, Fred C. MacKintosh
Summary: The research reveals that fiber networks exhibit nonlinear elastic stiffening when subjected to applied strain, which is controlled by an underlying critical mechanical phase transition. Simulation results show non-mean-field behavior for this transition, with a proposed hyperscaling relation connecting the corresponding critical exponents. The study suggests that the strain-controlled phase transition may have an upper critical dimension above three, contrasting with the jamming transition representing another athermal, mechanical phase transition.
Article
Engineering, Manufacturing
Chuanmin Zhu, Peng Gu, Yiqing Yu, Zhan Tao, Heng Zhang
Summary: This study focused on the layered fracture of QStE700 medium-thickness steel plates under tensile loading, observing the morphology and analyzing the mechanism of layered fracture. True stress-strain curves were determined using digital image correlation and a modified Bridgeman's equation, and a linear exponential relationship equation was developed to predict layered fracture occurrence based on equivalent strain and stress triaxiality. Finite element method simulations were used to validate the proposed method's effectiveness in predicting and controlling layered fracture in QStE700 steel plates.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2021)
Article
Computer Science, Interdisciplinary Applications
Omid Bateniparvar, Nima Noormohammadi
Summary: This paper studies the static solution of thin elastic plate problems with in-plane varying thickness or material properties having weak point singularities. It proposes a novel enrichment technique that can automatically identify and reproduce enriching terms corresponding to the singularity order of the problem, improving the solution quality.
ENGINEERING WITH COMPUTERS
(2023)
Article
Engineering, Manufacturing
Liang Wang, Xiao Du, Nak-Sam Choi
Summary: This study evaluated the tensile strength and fracture mechanisms of Al6061-T6 plate specimens based on von Mises stress and triaxial tensile stress. The results showed that the notch strength ratios and stress triaxiality vary significantly with different notch radii and thicknesses, leading to a transformation from shear fracture mode to a tensile-shear mixed fracture mode.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
(2022)
Article
Mechanics
Yongqing Cai, Jiu Hui Wu, Yicai Xu, Fuyin Ma
Summary: The paper proposes a lightweight, thin-plate elastic metamaterial with transverse, longitudinal, and torsional wave polarization band gaps, achieved through ingenious microstructure design, enabling selective suppression of elastic waves exhibiting different polarization forms. This elastic metamaterial structure provides a practical implementation scheme for the separation and manipulation of elastic waves in different polarization forms in solid structures.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Marine
Alexander Korobkin, Tatiana Khabakhpasheva
Summary: This paper studies the mathematical modeling of visco-elastic plate breaking and the consequent deflection of the plate. By using a simplified formulation, the authors model the plate as a thin visco-elastic plate with constant thickness and clamped edges. The plate deflection is caused by a gradually increasing aerodynamic pressure, and the plate breaks instantly when a modified fracture criterion is met. The motion of the plate parts after breaking is highly unsteady and dependent on the plate's viscous properties.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Mechanics
Zhuang He, Andrei Kotousov, Andrea Fanciulli, Filippo Berto, Giang Nguyen
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2016)
Article
Materials Science, Multidisciplinary
E. Schumann, J. -F. Silvain, J. -L. Bobet, M. Bardet, Y. Lu, A. Kotousov, M. Lamirand-Majimel
MATERIALS CHEMISTRY AND PHYSICS
(2016)
Article
Nanoscience & Nanotechnology
Walter L. Costin, Olivier Lavigne, Andrei Kotousov
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2016)
Article
Nanoscience & Nanotechnology
Walter L. Costin, Olivier Lavigne, Andrei Kotousov, Reza Ghomashchi, Valerie Linton
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2016)
Article
Materials Science, Multidisciplinary
H. Alipooramirabad, A. M. Paradowska, R. Ghomashchi, A. Kotousov, N. Hoye
MATERIALS SCIENCE AND TECHNOLOGY
(2016)
Article
Construction & Building Technology
P. Aryan, A. Kotousov, C. T. Ng, B. S. Cazzolato
STRUCTURAL CONTROL & HEALTH MONITORING
(2017)
Article
Construction & Building Technology
Pouria Aryan, Andrei Kotousov, Ching-Tai Ng, Benjamin Cazzolato
STRUCTURAL CONTROL & HEALTH MONITORING
(2017)
Article
Materials Science, Multidisciplinary
Olivier Lavigne, Andrei Kotousov, Vladimir Luzin
Editorial Material
Chemistry, Multidisciplinary
Ricardo Branco, Filippo Berto, Andrei Kotousov
APPLIED SCIENCES-BASEL
(2018)
Article
Materials Science, Multidisciplinary
Muhammad Faiz Harun, Roslina Mohammad, Andrei Kotousov
Article
Energy & Fuels
Sarwo Edhy Sofyan, Eric Hu, Andrei Kotousov, Teuku Meurah Indra Riayatsyah, Razali Thaib
Article
Materials Science, Multidisciplinary
Behnam Zakavi, Andrei Kotousov, Ricardo Branco
Summary: This paper addresses the issue of fatigue failure of structural components under cyclic loading, proposing new tools to evaluate crack front shape and developing a numerical approach to model plasticity-induced crack closure. The predicted crack front shapes and closure values were validated against experimental observations, showing good agreement.
Editorial Material
Chemistry, Multidisciplinary
Ricardo Branco, Filippo Berto, Andrei Kotousov
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Andrew Sales, Andrei Kotousov, Ling Yin
Summary: Additive manufacturing, specifically wire arc additive manufacturing (WAAM), is increasingly being used to produce complex metal components at low cost and high efficiency. This study focused on the fatigue performance of WAAM-processed super duplex stainless steels (SDSS), highlighting the anisotropy of fatigue properties and the importance of internal defects over surface flaws in fatigue crack initiation. Experimental results suggest a design methodology to enhance the fatigue life of WAAM-fabricated SDSS components, emphasizing that post-manufacturing surface treatments may not significantly improve fatigue resistance.
Article
Materials Science, Multidisciplinary
Andrew Sales, Andrei Kotousov, Egon Perilli, Ling Yin
Summary: This study aimed to improve the fatigue properties of WAAM-produced SDSS by changing the interpass temperatures. It was found that an increase in the interpass temperature led to a reduction in the ferrite phase balance, resulting in an increased fatigue limit in the transverse direction. However, there was no significant effect on fatigue resistance in the longitudinal direction.
Article
Mechanics
Zhiqiang Meng, Xu Gao, Hujie Yan, Mingchao Liu, Huijie Cao, Tie Mei, Chang Qing Chen
Summary: This paper presents a cage-shaped, self-folding mechanical metamaterial that exhibits multiple deformation modes and has tunable mechanical properties, providing multifunctional applications in various fields.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Hasan Murat Oztemiz, Semsettin Temiz
Summary: Sandwich panel composites have various applications and their mechanical behavior and performance depend on material properties and geometry. The load-carrying capacity of S-core composite sandwich panels increases with the increase of the core wall thickness, but decreases with the increase of the core height.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Yang Sun, Wei Zhang, Weipeng Hu, Mabao Liu
Summary: The study presents a novel computational framework to investigate the effect of graphene percolation network on the strength-ductility of graphene/metal composites. It utilizes the Cauchy's probabilistic model, the field fluctuation method, and the irreversible thermodynamics principle.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Elaheh Kazemi-Khasragh, Juan P. Fernandez Blazquez, David Garoz Gomez, Carlos Gonzalez, Maciej Haranczyk
Summary: This study explores group interaction modelling (GIM) and machine learning (ML) approaches for predicting thermal and mechanical properties of polymers. ML approach offers more reliable predictions compared to GIM, which is highly dependent on the accuracy of input parameters.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Yafei Yin, Shaotong Dong, Dong Wu, Min Li, Yuhang Li
Summary: This paper investigates a bending-induced instability in sandwiched composite structures, and establishes a phase diagram to predict its characteristics. The results are of great significance in understanding the physical mechanisms of bending instability and providing design guidelines for practical applications.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Dhairya R. Vyas, Sharen J. Cummins, Gary W. Delaney, Murray Rudman, Devang V. Khakhar
Summary: In this study, multiple collisions of granules on a substrate are analyzed using Collisional Smooth Particle Hydrodynamics (CSPH) to understand the influence of impact-induced deformation on subsequent collision dynamics. It is found that the collision dynamics are dependent on the impact location and the deformation caused by preceding impacts. The accuracy of three theoretical models is also evaluated by comparing their predictions with CSPH results, and it is discovered that these models are only useful for predicting collisions at the same location repeatedly.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Sneha B. Cheryala, Chandra S. Yerramalli
Summary: The effect of hybridization on the growth of interface crack along the fiber is predicted. The study shows an enhancement in the compressive splitting strength with hybridization due to the lateral confinement effect on the interfacial crack.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Xiang-Nan Li, Xiao-Bao Zuo, Liang Li, Jing-Han Liu
Summary: A multiscale mechanical model is proposed to quantitatively describe the macro-mechanical behavior of fiber reinforced concrete (FRC) based on its multiscale material compositions. The model establishes the stiffness and strength equations for each scale of FRC and demonstrates the influence of steel fiber parameters on the mechanical properties of FRC.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Vicente Ramirez-Luis, Hilario Hernandez-Moreno, Orlando Susarrey-Huerta
Summary: In this paper, a Multicell Thin-walled Method is developed for studying the stress distributions in multimaterial beams. This method accurately obtains complex stress fields while reducing the solution time and computational cost. Validation with the finite element method confirms the accuracy of the proposed method.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Yanfeng Zheng, Siyuan Li, Jingyao Zhang, Yaozhi Luo
Summary: This study proposes an enhanced simplified model based on finite particle method (FPM) to consider the link cross-sectional size and contact in Bennett linkages. The model introduces virtual beams and contact forces to accurately simulate the real-world behavior of Bennett linkages. The proposed method is effective for dynamic analysis of large-scale deployable Bennett linkages and shows great potential.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Viktoriya Pasternak, Heorhiy Sulym, Iaroslav M. Pasternak
Summary: This paper investigates anisotropic elastic, magnetoelectroelastic, and quasicrystal solids and presents their equations of time-harmonic motion and constitutive relations in a compact and unified form. A matrix approach is proposed to derive the 3D time-harmonic Green's functions for these materials. The effects of phason field dynamics on the phonon oscillations in quasicrystals are studied in detail. The paper provides a strict proof that the eigenvalues of the time-harmonic magnetoelectroelaticity problem are all positive. It also demonstrates the application of the obtained time-harmonic Green's functions in solving boundary value problems for these materials using the derived boundary integral equations.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Jan Tomec, Gordan Jelenic
Summary: This paper investigates the relationship between different formulations and contact-force models in beam-to-beam contact mechanics. It specifically addresses the recently developed mortar method and develops its variant based on the penalty method. The developed elements are tested using the same examples to provide an objective comparison in terms of robustness and computational cost.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Paulo Teixeira Goncalves, Albertino Arteiro, Nuno Rocha, Fermin Otero
Summary: This work presents a novel formulation of a 3D smeared crack model for unidirectional fiber-reinforced polymer composites based on a stress invariant approach for transverse yielding and failure initiation. The performance of the model is evaluated using monotonic and non-monotonic damage evolution, verified with single element tests and compared with experimental results.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Hanbin Yin, Yinji Ma, Xue Feng
Summary: This paper investigates the peeling behavior of a viscoelastic film bonded to a rigid substrate and establishes a theoretical peeling model. The study reveals three typical relationships between the peeling force and peeling velocity, which depend on the viscous dissipation within the film and the rate-dependent adhesion at the interface. Additionally, factors such as film thickness, interfacial toughness, and interfacial strength are identified as influencing the steady-state peeling force.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)
Article
Mechanics
Peter Noe Poulsen, John Forbes Olesen
Summary: Finite Element Limit Analysis (FELA) is increasingly used to calculate the ultimate bearing capacity of structures made of ductile materials. This study presents a consistent and general weak formulation based on virtual work for both the lower and upper bound problem, ensuring uniqueness of the optimal solution. A plane element with linear stress variation and quadratic displacement field is introduced, showing good results for load level, stress distribution, and collapse mechanism even for coarse meshes in verification and reinforced concrete examples.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2024)