Article
Engineering, Mechanical
Zhen Wang, Dayou Ma, Tao Suo, Yulong Li, Andrea Manes
Summary: This paper compares three numerical approaches for modeling brittle materials under different loading conditions, calibrates parameters through material tests, and evaluates numerical models using experimental results.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Farid Mehri Sofiani, Behzad V. Farahani, Jorge Belinha
Summary: This research investigates the fracture characteristics of a marble SCB specimen with a predefined crack under compressive loading conditions, evaluating the impact of crack and span length variations on fracture toughness.
The study utilizes meshless and finite element methods, comparing results to assess the capabilities of advanced numerical methods.
Encouraging results demonstrate the effectiveness of supporting numerical methodologies.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Multidisciplinary
Johannes C. Joubert, Daniel N. Wilke, Nicolin Govender, Patrick Pizette, Josip Basic, Nor-Edine Abriak
Summary: This paper introduces a boundary condition scheme for a weakly compressible renormalised first-order accurate meshless Lagrangian method, considering both solid and free surface conditions. The scheme enforces accurate recovery of boundary conditions and efficiently determines free surface particles. A substantial performance benefit was found in comparing different solvers for both 2D and 3D configurations.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2021)
Article
Computer Science, Interdisciplinary Applications
Xiongbiao Tu, Qiao Wang, Haonan Zheng, Liang Gao
Summary: We present a meshless method for magnetohydrodynamics by evolving the vector potential of magnetic fields. The method effectively restricts the divergence of magnetic field and allows for long-term evolution. Experimental results show that our method has better precision than existing meshless codes.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Engineering, Multidisciplinary
S. O. Sperling, J. P. M. Hoefnagels, K. van den Broek, M. G. D. Geers
Summary: This paper presents an alternative particle method called the Continuum Bond Method (CBM) that combines the advantages of conventional continuum methods and particle methods. CBM can accurately model complex fracture behavior while maintaining constitutive flexibility.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Thermodynamics
Jiao Li, Guangchun Wang, Shuai Liu, Jun Lin, Yanjin Guan, Guoqun Zhao, Hakim Naceur, Daniel Coutellier, Tao Wu
Summary: In this study, the thermal and mechanical properties of functionally graded material (FGM) were tailored to address the thermoelastic problem using a specific meshless smoothed particle hydrodynamics (SPH) method. The introduction of the symmetric SPH (SSPH) technique improved the inconsistency of the conventional SPH method, allowing for efficient solution of heat conduction and balance equations. The proposed approach was demonstrated to achieve result accuracy in solving numerical examples and consider the effect of gradation indexes on thermoelastic behavior.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Sanjukta Das, T. I. Eldho
Summary: This study analyzes the effect of the Peclet number on the accuracy of meshless methods and compares three different types of meshless methods in modeling groundwater contaminant transport. Through validation and error analysis, it is found that the MLPG-GCT model is the most stable, while the MWS-GCT model provides more accurate results in less computational time for relatively high Peclet numbers.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2023)
Article
Mathematics, Interdisciplinary Applications
Renato Vacondio, Corrado Altomare, Matthieu De Leffe, Xiangyu Hu, David Le Touze, Steven Lind, Jean-Christophe Marongiu, Salvatore Marrone, Benedict D. Rogers, Antonio Souto-Iglesias
Summary: This paper provides a brief overview of the main challenges of Smoothed Particle Hydrodynamics (SPH) method. While SPH can simulate a wide range of applications, it still requires further development to address important issues. The SPHERIC SPH Grand Challenges aim to focus the attention of researchers and users worldwide on key development areas.
COMPUTATIONAL PARTICLE MECHANICS
(2021)
Article
Computer Science, Interdisciplinary Applications
Yujie Zhu, Chi Zhang, Xiangyu Hu
Summary: A consistency-driven particle-advection formulation is proposed in this paper to improve the consistency and stability of smoothed particle hydrodynamics method without introducing any physical-related parameters. By modifying the error term to be negative, the effectiveness is further enhanced and the attraction between particles is avoided. Various challenging test cases are studied to validate the accuracy and robustness of the method.
COMPUTERS & FLUIDS
(2021)
Article
Engineering, Mechanical
Zhi-Yong Yin, Xiao-wei Chen
Summary: This study numerically reveals three typical fracture modes of explosively-driven metal shells and investigates the influencing factors of different fracture modes through experimental data and dimensional analysis.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Shuangwei Hu, Rui Zhong, Qingshan Wang, Qin Bin
Summary: A local gradient smoothing method (LGSM) in the framework of meshless theory was developed for vibration analysis of closed laminate structures. The method showed good potential in improving solution convergence and has promising applications in clarifying vibration phenomena of such laminated structures.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2021)
Article
Computer Science, Interdisciplinary Applications
Marlucio Barbosa, Jose Claudio de Faria Telles (JCF Telles), Jose Antonio Fontes Santiago, Edivaldo Figueiredo Fontes Junior, Edmundo Guimaraes de Araujo Costa
Summary: This paper presents a parallel implementation strategy for meshless methods using principles of functional programming and memory polymorphism, aiming to simplify the mathematical physics model representation and ensure portability of performance. The study defines an execution model for meshless methods, emphasizing the need for specialization in execution and memory spaces during compilation. Results demonstrate the ability to reduce model complexity and guarantee performance portability.
ADVANCES IN ENGINEERING SOFTWARE
(2021)
Article
Mathematics, Applied
F. Almasi, M. S. Shadloo, A. Hadjadj, M. Ozbulut, N. Tofighi, M. Yildiz
Summary: This study discusses the application of mesh-less numerical method ISPH in investigating the behavior of multi-phase flow systems. The results validate the effectiveness and accuracy of the method through verification of various problems, and introduce the simulation of Electrohydrodynamics effect in Couette flow for the first time.
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2021)
Article
Mechanics
L. R. Botvina, A. V. Larionova
Summary: The paper describes an experimental study on the influence of composition and mechanical properties of different types of steels on dynamic fragmentation and fracture mechanisms. The study finds that simple exponential functions can be used to describe the cumulative mass distributions of shell fragments. The parameter 1/μ serves as a dynamic fracture criterion that is sensitive to changes in the composition and mechanical properties of the material.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Mechanics
D. C. Goncalves, I. J. Sanchez-Arce, L. D. C. Ramalho, R. D. S. G. Campilho, J. Belinha
Summary: In this study, a fracture propagation algorithm is extended to analyze mixed-mode fracture propagation in adhesively bonded joints. Single-leg bending (SLB) specimens were experimentally tested to characterize the adhesive joint and validate the numerical application. The radial point interpolation method (RPIM), a meshless method, was used for numerical analysis to obtain the mechanical response of the specimen at each crack tip increment.
COMPOSITE STRUCTURES
(2023)
