Article
Polymer Science
Yuki Ogawa, Kimiyoshi Naito, Keisuke Harada, Hiroyuki Oguma
Summary: This study compared and analyzed the critical separation energy of three SGA adhesives, as well as examined the mechanical properties of the bond. It was found that the highly ductile adhesive showed plastic deformation in the steel adherends during the loading-unloading test, while the high tensile strength and modulus adhesives experienced a sudden decrease in load without plastic deformation. The critical separation energy increased with increasing adhesive thickness, and the highly ductile adhesives were more affected by adhesive thickness than highly strength adhesives.
Article
Engineering, Multidisciplinary
Daniel Dias-da-Costa, Marcelo R. Carvalho, Milad Bybordiani
Summary: Many advanced methods have been developed for predicting discrete fracture within the finite element framework, with the goal of enhancing the continuous displacement field with a discontinuous part. These methods provide unprecedented versatility in discretising domains with prescribed and evolving boundaries, but can incur additional computational burden with global tracking schemes. A new method, the Cracked Zone Clustering Method (CZCM), is proposed to address these issues by introducing minimal enhanced degrees of freedom and decoupling the discretisation of bulk and cracks. Results show that CZCM can significantly reduce the required number of enhancement degrees of freedom while maintaining accuracy.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2021)
Article
Energy & Fuels
Pengyu Wang, Shuhong Wang, Alipujiang Jierula, Zihan Sun
Summary: This study investigates the connection and bifurcation problems of rock crack propagation by inserting cohesive elements, and finds the best method for insertion. Results show that using the maximum principal stress criterion and displacement law can achieve the best simulation outcomes.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2021)
Article
Mechanics
Rossana Dimitri, Martina Rinaldi, Marco Trullo, Francesco Tornabene, Corrado Fidelibus
Summary: This paper investigates the mechanical properties of elements in the lithosphere, using Finite Element Method and eXtended Finite Element Method to address the fracturing problem in Opalinus Clay (OPA) formation. The approaches are successfully compared despite the complex nonlinear nature of the problem.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
T. Laschuetza, Th. Seelig
Summary: The role of inertia effects during crack formation under non-singular static pre-stress is investigated using a linear softening cohesive zone model. In the case of a 1D tensile bar, about one third of the released strain energy is converted into kinetic energy during the finite time of decohesion. Results from dynamic finite element analyses using the same cohesive zone model are compared with predictions from finite fracture mechanics in the case of crack initiation from a circular hole in a 2D plate under remote tension or compression, showing a complex dependence on the hole radius. Both methods capture the critical load for crack initiation at the hole well, but only the numerical cohesive zone model analyses resolve the highly transient process of crack nucleation.
ENGINEERING FRACTURE MECHANICS
(2021)
Article
Engineering, Mechanical
I. T. Tandogan, T. Yalcinkaya
Summary: This paper develops a physically motivated cohesive zone modeling framework for ductile fracture in metallic materials, considering the physical mechanisms of crack initiation and propagation. A micromechanically motivated traction-separation relation is used to describe the growth of a physical pore. An incremental implicit elasto-plastic numerical integration scheme is utilized for solving the mixed-mode system of equations. Numerical simulations are conducted to test the implementation and influence of micromechanical parameters on crack initiation and propagation.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Materials Science, Multidisciplinary
Vikas Kaushik, Anup Ghosh
Summary: This article presents a fracture model for evaluation of Mode-II and Mixed-Mode interlaminar fracture properties of unidirectional laminated composites. Experimental and numerical results show good agreement between the experimentally obtained results and theoretical predictions.
MECHANICS OF MATERIALS
(2021)
Article
Mechanics
Hui Li, Yujie Huang, Zhenjun Yang, Kelai Yu, Q. M. Li
Summary: This study develops a mesoscale fracture modelling method that can simulate complicated 3D damage and fracture in quasi-brittle materials. By combining the phase-field regularized cohesive zone model and random aggregate models, this method shows promising application prospects for simulating concrete-like materials.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Mechanics
S. Safaei, A. Akhavan-Safar, M. Jalalvand, L. F. M. Da Silva
Summary: The end notched flexure (ENF) test is commonly used to measure the mode II fracture energy of adhesives, but it has limitations such as sensitivity to pre-crack tip conditions. This study proposes a new technique for measuring the mode II fracture energy of brittle adhesives using the central cut ply (CCP) configuration, which ensures more stable crack growth and generates multiple experimental data points. The CCP method can provide both crack initiation and crack propagation toughness values, unlike the ENF method that only provides crack initiation fracture energy.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Yinge Zhu, Huiyuan Chen, Anqi Li, Yue Wu, Xiaoli Zhang
Summary: The mechanical behaviors of rock masses are significantly affected by the distribution and shape of the holes in it. In this research, the fracture mechanism and the shear properties of rock masses containing holes were investigated using the cohesive zone model (CZM) method. The results show that the shear process can be divided into elastic, strengthening, plastic, and residual stress stages, and the shear rate and normal stress are positively correlated with shear strength and dilatancy. The cracking behavior and mechanical properties of the specimens are closely related to the shear rate and normal stress.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Multidisciplinary
Xin Lai, Fang Wang, Siyan Ran, Guiqiu Xie, Gang Liu, Rulan Gan, Xiangguo Zeng
Summary: This study employs molecular dynamics simulations and finite element method to investigate the intergranular crack performance of magnesium bicrystals with typical twin boundaries (TBs). The results show that the crack propagation is strongly sensitive to twin boundary and the resultant plastic deformation behavior. Microcracks are also observed when TBs interact with dislocations.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Mechanics
Sathiskumar Anusuya Ponnusami, Jayaprakash Krishnasamy, Sergio Turteltaub, Sybrand Van der Zwaag
Summary: The influence of the cohesive zone length on the crack driving force in a system of particles dispersed in a composite material matrix is analyzed. The study shows that the process zone length scale parameter has a critical influence on the magnitude and direction of the crack driving force. Numerical simulations demonstrate that the driving force magnitude is directly dependent on the length scale parameter, and the presence of a cohesive zone significantly affects the direction of the driving force.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Engineering, Mechanical
Andy Ziccarelli, Amit Kanvinde, Gregory Deierlein
Summary: A procedure for calibrating a finite element model to simulate ductile cracking using a continuum damage criterion and an adaptive cohesive zone method is proposed and validated with experimental data from A913 structural steel. The results show that the computational model accurately simulates the overall response and key aspects of observed behavior, providing guidelines for practical application.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)
Article
Engineering, Mechanical
Wang Cai, Chaoyang Sun, Chunhui Wang, Lingyun Qian, Yuemin Li, M. W. Fu
Summary: This research investigated the deformation mechanisms and fracture characteristics of TWIP steels at high temperature. It revealed the influence of GB angle, grain size, and microvoids on the initiation and propagation of microcracks along grain boundaries.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Mechanics
Chenyu Wang, Toshio Nagashima
Summary: A quasi-three-dimensional extended finite element method (XFEM) is used to analyze damage propagation in carbon fiber reinforced plastics (CFRPs) laminates. Delamination and matrix cracks are modeled using an eight-node quadrilateral interface element and an eight-node hexahedral continuum element enriched with only the Heaviside function, respectively. The zig-zag enhanced cohesive zone model is applied to delamination and matrix cracks. The system equations considering material nonlinearity are solved using the implicit static method. The effectiveness of the quasi-three-dimensional XFEM for damage propagation analysis in CFRP laminates is demonstrated through comparison with experimental results.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
S. M. Parvaneh, C. D. Foster
ENGINEERING FRACTURE MECHANICS
(2016)
Article
Construction & Building Technology
Adam G. Tennant, Craig D. Foster, B. V. Venkatarama Reddy
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2016)
Article
Engineering, Geological
D. A. Weed, C. D. Foster, M. H. Motamedi
Article
Engineering, Geological
Thanakorn Siriaksorn, Sheng-Wei Chi, Craig Foster, Ashkan Mahdavi
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2018)
Article
Chemistry, Multidisciplinary
Poya Yasaei, Cameron J. Foss, Klas Karis, Amirhossein Behranginia, Ahmed I. El-Ghandour, Arman Fathizadeh, Javier Olivares, Arnab K. Majee, Craig D. Foster, Fatemeh Khalili-Araghi, Zlatan Aksamija, Amin Salehi-Khojin
ADVANCED MATERIALS INTERFACES
(2017)
Article
Engineering, Civil
Ahmed I. El-Ghandour, Martin B. Hamper, Craig D. Foster
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT
(2016)
Article
Engineering, Civil
A. I. El-Ghandour, C. D. Foster
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT
(2019)
Article
Mathematics, Applied
C. D. Foster, D. A. Weed
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2019)
Article
Construction & Building Technology
David A. Weed, Adam G. Tennant, Mohammad Hosein Motamedi, K. Gourav, Craig D. Foster, B. V. Venkatarama Reddy
MATERIALS AND STRUCTURES
(2020)
Article
Thermodynamics
D. Gongal, S. Thakur, A. Panse, R. Pawar, C. Q. Yu, C. D. Foster
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2020)
Article
Engineering, Geological
Seyed Milad Parvaneh, Craig D. Foster, Sheng-Wei Chi
Summary: A three-invariant continuum cap plasticity model with viscoplastic features is developed for modeling the large deformation of soil, capturing multiple failure mechanisms.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2022)
Article
Engineering, Geological
Persid Koci, Craig D. Foster
Summary: A new elasto-plastic constitutive model considering the effect of distributed fibers in a matrix is developed. Tensile stresses in the fibers are integrated over possible orientations using a numerical technique and transferred into a homogenized composite material stress. The fiber model takes into account the degradation of the cohesive bond, the elasto-plastic behavior, and ultimate strength of the fibers. The fiber model is coupled with the constitutive model of the soil matrix to obtain the constitutive model of fiber reinforced soil.
Article
Engineering, Biomedical
D. Gongal, S. Thakur, A. Panse, P. Shankarrao, J. A. Stark, J. R. Hetling, B. Ozgen, C. D. Foster
Summary: This paper presents a finite element thermal analysis to determine the efficacy of local hypothermia treatment using a scleral eye contact ring. Realistic and simplified models of the human eye orbit are created, and a transient analysis is performed. The study shows that the device effectively lowers the temperature of the optic nerve head within a short treatment time.
MEDICAL ENGINEERING & PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Poya Yasaei, Amirhossein Behranginia, Zahra Hemmat, Ahmed I. El-Ghandour, Craig D. Foster, Amin Salehi-Khojin
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)
