Article
Computer Science, Interdisciplinary Applications
Yang Liu, Dongdong Xu, Mathias Agmell, Rachid M' Saoubi, Aylin Ahadi, Jan-Eric Stahl, Jinming Zhou
Summary: This paper investigates the effect of tool geometry on residual stresses in orthogonal machining Inconel718 alloy through numerical and experimental analysis, finding that tools with negative rake angle and sharp edge radius tend to generate more compressive stress, while an increase in flank wear results in less magnitude of compressive stress in subsurface.
SIMULATION MODELLING PRACTICE AND THEORY
(2021)
Article
Polymer Science
Xiangyang Liu, Xuyuan Xie, Dongmo Zhou, Ruimin Wang
Summary: This study investigated the formation mechanism of residual stress and residual strain in a NEPE propellant grain during the curing and cooling process. The temperature, curing degree, and stress/strain of the propellant grain were analyzed using ABAQUS finite element software. The results showed that there was a temperature gradient during curing, with the maximum temperature difference of 5 degrees C located at the center of the grain. The residual stress and strain were mainly attributed to curing and thermal effects. The traditional method overestimated the residual stress and strain compared to this study, with a maximum deviation of 8% and 17%, respectively.
Article
Materials Science, Multidisciplinary
Xiaobin Wu, Jun Cheng, Zhilong Xu, Leyang Dai, Qingshan Jiang, Bosheng Su, Li Zhu, Zhenye Zhao
Summary: This study established a theoretical model of ultrasonic rolling and determined the USRP parameters for 40Cr steel through analysis and experimental research. The surface properties under different parameters were studied, and the optimal parameters were found to be an amplitude of 12 micrometers, a frequency of 20 kHz, and a static force of 600 N.
Article
Engineering, Mechanical
Yanzhong Wang, Wei Zhang, Bo Yu, Zhenpeng Li, Yang Liu
Summary: Shot peening is a widely used method in various industries, which can improve the fatigue life of mechanical structures by introducing a residual compressive stress field on the surface of metal structures. This study proposes an analysis method for rapidly predicting the residual stress of parts surface during shot peening, based on an elastoplastic impact model and stress-strain laws in different processes. The model predictions were validated by a TC4 shot peening test, showing consistent results with measured residual stress.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Materials Science, Coatings & Films
Jinyuan Tang, Yu Shi, Jiuyue Zhao, Liwei Chen, Zhenyu Wu
Summary: This paper proposes a numerical model considering initial gradient mechanical properties to predict the residual stress distribution of 12Cr2Ni4A carburized and quenched steel, and a method to calculate the ultrasonic surface rolling coverage based on Hertz contact theory is also proposed. The effects of static load, rolling tool radius, amplitude and feed rate on residual stress distribution are investigated. The simulated results are compared and proved to be in good agreement with the measured results, validating the accuracy of the proposed model.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Chunguo Zhang, Shuai Luan
Summary: This study proposes a method to measure equivalent residual stress in real time during fatigue cycling, which can monitor the residual stress in welded joints.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2022)
Article
Chemistry, Multidisciplinary
Jinghong Gao, Yuchen Shi, Weiguang Su, Xudong Song, Jiaofei Wang, Guangsuo Yu
Summary: This study used the finite element method to calculate the stress intensity factor (SIF) and J-integral at the crack front of a refractory lining in a coal-water slurry gasifier. A crack growth model was established and the effects of different crack length, depth, and angle on stress, SIF, and J-integral distribution were analyzed. The simulation results showed that high stresses were present at the crack tip and the distribution of K-I and J-integral along the crack front were similar. The maximum values were observed near the two ends of the crack and the minimum values were near the deepest crack front. Additionally, excessive crack depths were found to potentially cause unstable crack growth.
Article
Optics
Ruolin Wu, Yu Huang, Youmin Rong, Jiajun Xu, Quan Chen
Summary: A complete solid phase transformation model was proposed to accurately predict the welding-induced residual stress and strain of high strength steel thick plate EH40 butt joint in single-pass full penetration laser welding, which showed significant effects on the stress and strain distribution. The results of this study provide valuable insights for understanding the evolution mechanism of stress and strain in the later stage of cooling stage.
OPTICS AND LASER TECHNOLOGY
(2023)
Review
Mathematics, Applied
E. Becerra-Becerra, C. O. Aguilera Ojeda, A. Saldana-Robles, J. F. Reveles-Arredondo, J. Barco-Burgos, A. Vidal-Lesso
Summary: Numerical simulation of ball burnishing has gained interest in the research and industry due to its potential in improving surface integrity. This paper provides a comprehensive review of recent research on ball burnishing simulation using the Finite Element Method. The review covers various surface integrity properties studied through 2D and 3D simulations, such as surface roughness, residual stresses, microhardness, plastic strain, phase transformation, elastic recovery effect, ball indentation mark, and thermal behavior.
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2023)
Article
Engineering, Mechanical
Yongmei Zhang, Gwenaelle Proust, Delphine Retraint, Huamiao Wang, Yixiang Gan
Summary: SMAT is a specialized cold working method for inducing compressive residual stresses and refining crystalline grains on metal surfaces. A numerical modelling approach combining DEM and FEM was developed to accurately predict residual stresses and plastic deformation during SMAT, with good agreement with experimental data. This method demonstrates the capability to establish linkages between processing parameters and material properties during SMAT treatment.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Chemistry, Physical
Tae-Wan Ku
Summary: This study numerically predicted and experimentally investigated the residual stress and microstructural characteristics, as well as plastic deformation damage and hardness of a preform fabricated by a cold forward extrusion process. The results showed that heat treatment effectively spheroidized the ferrite and pearlite within the raw workpiece, and adopting the elasto-plastic material model better met the dimensional requirement of the preform. The numerically predicted residual stress agreed with the Vickers micro-hardness distribution.
Article
Automation & Control Systems
Guisen Wang, Fuzhu Han
Summary: The study shows that there are differences in surface integrity between single-step and multi-step machined samples in electrical discharge machining, with multi-step machined samples having higher surface roughness, white layer thickness, and surface residual stress. These differences become even larger in the finishing stage.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Nian Wan, Qiang He, Yuxiang Jiang, Honggen Zhou, Bofeng Fu
Summary: In order to improve the quality of cold extruded internal thread, the cold extrusion and cutting processes of 42CrMo4 ultra-high strength steel internal thread were conducted. The effects of key processing and design parameters on tooth shape and residual stresses were analyzed using an elastic-plastic finite element model. The results showed that the diameter of the bottom hole directly influenced the magnitude of residual stress, while the change of lubricating medium had no obvious effect. Orthogonal design optimization of the technological parameters led to an increase in maximum residual compressive stress and a decrease in maximum residual tensile stress, while still meeting the requirements for thread connection strength.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yang Chen, James Marrow
Summary: A microscale model was developed to predict the mechanical behavior of irradiated fibre composites, and the effects of swelling mismatch on the mechanical properties were investigated. The sensitivity of the composites' properties to irradiation swelling was affected by the fibre volume fraction, while the porosity affected the initial unirradiated properties.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Engineering, Manufacturing
Dongdong Xu, Yang Liu, Liang Ding, Jinming Zhou, Rachid M'Saoubi, Haijiang Liu
Summary: This study investigates the cutting process of nickel-based superalloy Inconel 718 with worn tools using both numerical and experimental methods. The results show that worn tools have an influence on thermal distribution, force variation, and tool wear performance. A white layer appears on the subsurface due to intense friction and significant heat generation caused by tool wear, altering the stress condition and thermal distribution. EBSD and SEM results demonstrate variations in subsurface material and deformation under different cutting conditions. The findings from both numerical and experimental methods are consistent, highlighting the ability to study cutting performance with worn tools numerically and reducing resource requirements for studying surface deformation.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Materials Science, Multidisciplinary
Naziha Sidhom, Naoufel Ben Moussa, Sameh Janeb, Chedly Braham, Habib Sidhom
MATERIALS & DESIGN
(2014)
Article
Automation & Control Systems
Naoufel Ben Moussa, Khouloud Gharbi, Iheb Chaieb, Nabil Ben Fredj
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2019)
Article
Automation & Control Systems
Iheb Chaieb, Naoufel Ben Moussa, Nabil Ben Fredj, Nizar Ben Salah
Summary: The paper introduces a finite element-based approach for shot peening simulation, taking into account the random aspect of the process and a large number of shots. The method allows for a significant time gain in computing while achieving comparable results to experiments.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
Khouloud Gharbi, Naoufel Ben Moussa, Amir Ben Rhouma, Nabil Ben Fredj
Summary: Deep rolling parameters, particularly work speed and cooling conditions, significantly affect the corrosion behavior of AISI 304L machined samples. Factors such as surface roughness, recrystallized grains, strain-induced martensite, and residual stresses play a key role in determining the electrochemical behavior of deep rolled components. Samples deep rolled at different speeds and cooling conditions exhibit varying levels of corrosion resistance, with grain refinement and improved surface characteristics contributing to enhanced corrosion resistance.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
Houda Yahyaoui, Naoufel Ben Moussa, Mohamed Habibi, Farhat Ghanem, Nizar Ben Salah
Summary: This study investigates the impact of additive manufacturing parameters on the corrosion resistance of AISI 316L stainless steel used for orthopedic implants. Selective laser melting was used to produce samples with varying volumetric energy density. It was found that increasing the energy density improves material continuity and reduces porosity, leading to better corrosion resistance. Applying a PVD TiN coating further enhances the corrosion protection of the manufactured parts.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Naoufel Ben Moussa, Farhat Ghanem, Nizar Ben Salah, Nabil Ben Fredj
INTERNATIONAL JOURNAL OF SURFACE SCIENCE AND ENGINEERING
(2020)
Proceedings Paper
Engineering, Mechanical
Habib Sidhom, Naoufel ben Moussa, Brahim ben Fathallah, Naziha Sidhom, Chedly Braham
RESIDUAL STRESSES IX
(2014)
Proceedings Paper
Engineering, Mechanical
N. Ben Moussa, N. Sidhom, H. Sidhom, C. Braham
RESIDUAL STRESSES IX
(2014)
Proceedings Paper
Engineering, Mechanical
Naoufel Ben Moussa, Zouhayar Al-Adel, Habib Sidhom, Chedly Braham
RESIDUAL STRESSES IX
(2014)
Article
Engineering, Mechanical
Rosaria Del Toro, Maria Laura De Bellis, Marcello Vasta, Andrea Bacigalupo
Summary: This article presents a multifield asymptotic homogenization scheme for analyzing Bloch wave propagation in non-standard thermoelastic periodic materials. The proposed method derives microscale field equations, solves recursive differential problems within the unit cell, establishes a down-scaling relation, and obtains average field equations. The effectiveness of this approach is validated by comparing dispersion curves with those from the Floquet-Bloch theory.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Yue Bao, Zhengcheng Yao, Yue Zhang, Xueman Hu, Xiandong Liu, Yingchun Shan, Tian He
Summary: This paper proposes a novel triple-gradient phononic acoustic black hole (ABH) beam that strategically manipulates multiple gradients to enhance its performance. The study reveals that the ABH effect is not solely brought about by the thickness gradient, but also extends to the power-law gradients in density and modulus. The synergistic development of three different gradient effects leads to more pronounced and broader bandgaps in PCs.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Matthias Ryser, Jason Steffen, Bekim Berisha, Markus Bambach
Summary: This study investigates the feasibility of replacing complex experiments with multiple simpler ones to determine the anisotropic yielding behavior of sheet metal. The results show that parameter identifiability and accuracy can be achieved by combining multiple specimen geometries and orientations, enhancing the understanding of the yield behavior.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Wenjun Li, Pengfei Zhang, Siyong Yang, Shenling Cai, Kai Feng
Summary: This study presents a novel two-dimensional non-contact platform based on Near-field Acoustic Levitation (NFAL), which can realize both one-dimensional and two-dimensional transportation. Numerical and experimental results prove the feasibility and ease of this method.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Shuo Liu, Lu Che, Guodong Fang, Jun Liang
Summary: This study presents a novel lamina conjugated bond-based peridynamic (BB-PD) model that overcomes the limitations of material properties and is applicable to composite laminates with different stacking sequences. The accuracy and applicability of the model are validated through simulations of elastic deformation and progressive damage behavior, providing an explanation of the damage modes and failure mechanisms of laminated composite materials subjected to uniaxial loading.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Omar El-Khatib, S. Kumar, Wesley J. Cantwell, Andreas Schiffer
Summary: Sandwich-structured honeycombs (SSHCs) are hierarchical structures with enhanced mass-specific properties. A model capable of predicting the elastic properties of hexagonal SSHCs is presented, showing superior in-plane elastic and shear moduli compared to traditional honeycombs, while the out-of-plane shear moduli are reduced.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Zhi-Jian Li, Hong-Liang Dai, Yuan Yao, Jing-Ling Liu
Summary: This paper proposes a process-performance prediction model for estimating the yield strength and ultimate tensile strength of metallic parts fabricated by powder bed fusion additive manufacturing. The effect of main process variables on the mechanical performance of printed metallic parts is analyzed and the results can serve as a guideline for improvement. The accuracy of the proposed model is validated by comparison with literature.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Saman A. Bapir, Kawa M. A. Manmi, Rostam K. Saeed, Abdolrahman Dadvand
Summary: This study numerically investigates the behavior of an ultrasonically driven gas bubble between two parallel rigid circular walls with a cylindrical micro-indentation in one wall. The primary objective is to determine the conditions that facilitate the removal of particulate contamination from the indentation using the bubble jet. The study found that the bubble jet can effectively remove contamination from the indentation for certain ranges of indentation diameter, but becomes less effective for larger indentation diameters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
E. Polyzos, E. Vereroudakis, S. Malefaki, D. Vlassopoulos, D. Van Hemelrijck, L. Pyl
Summary: This research investigates the elastic and damage characteristics of individual composite beads used in 3D printed composites. A new analytical probabilistic progressive damage model (PPDM) is introduced to capture the elastic and damage attributes of these beads. Experimental results show strong agreement with the model in terms of elastic behavior and ultimate strength and strain.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
