International Journal of Material Forming最新文献_第4页

Development of coupled finite element model to investigate electromagnetic forming and simultaneous multi-point perforations of Aluminium tube 建立了铝管电磁成形及多点同时穿孔的耦合有限元模型

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-12 DOI: 10.1007/s12289-024-01871-7

Avinash Chetry, Arup Nandy

{"title":"Development of coupled finite element model to investigate electromagnetic forming and simultaneous multi-point perforations of Aluminium tube","authors":"Avinash Chetry, Arup Nandy","doi":"10.1007/s12289-024-01871-7","DOIUrl":"10.1007/s12289-024-01871-7","url":null,"abstract":"<div><p>The paper presents a coupled 3D numerical model to understand high-strain rate electromagnetic forming and multi-point perforation of Al6061-T6 tube. This study focuses on a comprehensive exploration of the process by numerically simulating the forming and perforation of Al6061-T6 tubes for two type of punches (concave and pointed) across different configurations (12-holes and 36 -holes), and for two specific hole positions (centrally located and end holes), implemented through LS-DYNA™ software. A detailed analysis of the temporal distributions of various critical process parameters i.e., Lorentz force distribution, velocity on deformation, stress, and strain distribution near the perforated hole has been carried out to elucidate the physics of EMFP. Furthermore, the study compares the numerical simulation with experimental data to evaluate the number of perforated holes and the average hole diameter across different punch configurations and discharge energy ranges. The numerical outcomes are in good agreement with experimental findings, with maximum variations not exceeding 6%. The study also reveals that the non-linearity associated with Lorentz force distributions is not only in circumferential direction but also in axial directions. Higher energy levels increase hole diameter, but for the given tube geometry, maximum 6.2 kJ can be applied without occurrence of crack and rebound. For the given tube thickness, 6.2 kJ discharge energy is optimum to produce clear perforation.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-024-01871-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Uncertainty quantification for conical hole expansion test of DP800 sheet metal DP800板材锥形孔膨胀试验的不确定度定量

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-06 DOI: 10.1007/s12289-024-01869-1

Quoc Tuan Pham, Alexander Barlo, Md Shafiqul Islam, Mats Sigvant, Johan Pilthammar, Lluís Pérez Caro, Vili Kesti

{"title":"Uncertainty quantification for conical hole expansion test of DP800 sheet metal","authors":"Quoc Tuan Pham, Alexander Barlo, Md Shafiqul Islam, Mats Sigvant, Johan Pilthammar, Lluís Pérez Caro, Vili Kesti","doi":"10.1007/s12289-024-01869-1","DOIUrl":"10.1007/s12289-024-01869-1","url":null,"abstract":"<div><p>The hole expansion ratio (HER) observed in a standardized hole expansion test (HET) is commonly used to determine the edge fracture of steel sheets. A large variation of the measured HER restricts the practical application of the method. This study presents a systematic investigation on uncertainties in the HER of DP800 sheet material, including the hole-edge quality, pre-strain due to the hole-punching process, the friction coefficient, and the determination of fracture. An artificial neural network was trained to develop a surrogate model using a database gained from a thousand finite element simulations of the HET. Monte-Carlo simulations were performed using the trained surrogate model to characterize the distribution of the HER. Sensitivity analysis via Sobol’s indices is calculated to determine the influence of the input variables on the output. It is found that the pre-strain and pre-damage generated during the hole punching process in the shear-affected zone dominate the variation of the HER. Discussions on reducing the output’s variation are detailed. In general, these findings provide valuable insights for the determination of HER as well as the edge crack behavior of the investigated DP800 steel sheet.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-024-01869-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inverse identification of a coupled hardening law with GTN damage model parameters for cold-rolled steel: application to the deep drawing process 冷轧钢GTN损伤模型参数耦合硬化规律的逆识别：在深拉深加工中的应用

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-05 DOI: 10.1007/s12289-024-01866-4

Abdelilah Bouragba, Mohamed Hadj Miloud, Ibrahim Zidane, Mohammed Mendas

{"title":"Inverse identification of a coupled hardening law with GTN damage model parameters for cold-rolled steel: application to the deep drawing process","authors":"Abdelilah Bouragba, Mohamed Hadj Miloud, Ibrahim Zidane, Mohammed Mendas","doi":"10.1007/s12289-024-01866-4","DOIUrl":"10.1007/s12289-024-01866-4","url":null,"abstract":"<div><p>This study considers the Gurson-Tvergaard-Needleman (GTN) micromechanical damage model as a potential alternative to the traditional forming limit curves used in industrial deep drawing applications. In the first step, the parameters of a coupled hardening law with the GTN damage model were identified through parametric identification using inverse analysis. This technique relies on tensile test results obtained from notched specimens cut from cold-rolled steel (DC06EK). The study's originality lies in utilizing both global and local experimental data, focusing principally on the force–displacement curves and the evolution of equivalent plastic strain within two zones of the specimen: rupture and deformation stagnation. The parameter identification demonstrated a good agreement between experimental data and numerical results. In the second step, the determined work hardening law coupled with the GTN damage model was implemented in a numerical simulation of an industrial deep drawing process for a wheelbarrow tray (WBT). The outcomes of the numerical simulation, in terms of thickness reduction in the deep-drawn WBT, were compared with the experimental results, showing very good agreement. A further comparison was made between the numerical results with and without the GTN model, as well as with a previous study (without GTN) on the same numerical simulation. This demonstrated the value of incorporating a hardening law coupled with the GTN model, as it allowed for more accurate determination of wrinkling and necking prior to rupture based on the applied blank holder pressure, helping to prevent those defects during the deep drawing process of the WBT.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of the adiabatic heating coefficient on the near solidus forming process 绝热加热系数对近固相成形过程的影响

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-04 DOI: 10.1007/s12289-024-01867-3

Muhammad Sajjad, Julen Agirre, Gorka Plata, Jokin Lozares, Joseba Mendiguren

{"title":"The influence of the adiabatic heating coefficient on the near solidus forming process","authors":"Muhammad Sajjad, Julen Agirre, Gorka Plata, Jokin Lozares, Joseba Mendiguren","doi":"10.1007/s12289-024-01867-3","DOIUrl":"10.1007/s12289-024-01867-3","url":null,"abstract":"<div><p>The Near Solidus Forming (NSF) process represents a critical method for shaping metallic components under extreme temperature conditions. When metals deform plastically, significant amounts of heat can be generated, which is due to the conversion of plastic deformation energy in the material often known is adiabatic heating. In this study, the influence of the adiabatic heating coefficient (AHC) on temperature distribution and plastic strain during NSF process is investigated. For this purpose, three industrial benchmarks previously fabricated using NSF techniques are selected to serve as representative cases for analysis. To conduct the analysis, sensitivity studies is performed at two key temperatures: 1360 °C and 1370 °C. These temperatures are chosen to capture the range of operating conditions typically encountered in industrial NSF applications. The simulation tool FORGE NXT<sup>®</sup> is utilized to investigate the potential effect of AHC on equivalent plastic strain (EPS). The range of potential AHC values considered is between 85% and 100%, as determined from a comprehensive literature survey. The study suggests that the AHC has a minimal effect on the deformation behaviour of 42CrMo4 steel at NSF condition for the studied benchmarks. The findings of this study provide the inside to the importance of AHC in the developing of a reliable Digital Twin (DT) for industrial NSF application.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-024-01867-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature and plastic strain dependent Chaboche model for 316 L used in simulation of cold pilgering 采用温度-塑性应变关系的316l冷镦模拟Chaboche模型

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-03 DOI: 10.1007/s12289-024-01864-6

Yağız Azizoğlu, Lars-Erik Lindgren

{"title":"Temperature and plastic strain dependent Chaboche model for 316 L used in simulation of cold pilgering","authors":"Yağız Azizoğlu, Lars-Erik Lindgren","doi":"10.1007/s12289-024-01864-6","DOIUrl":"10.1007/s12289-024-01864-6","url":null,"abstract":"<div><p>Cold pilgering is a complex forming process used to produce seamless tubes, posing significant challenges in material modeling due to its non-proportional loading history and extensive accumulated plastic strain. In this study, a temperature- and plastic strain-dependent Chaboche model for 316 L stainless steel was developed and calibrated. To simulate the complex loading conditions, unique alternating compression-compression tests were conducted, and the model parameters were optimized accordingly. The calibrated model was integrated into a thermo-mechanical finite element simulation of the cold pilgering process, resulting in improved accuracy in predicting stress-strain responses and yield stress evolution. Close agreement with experimental tensile tests of the final tube was demonstrated, illustrating the model’s capability to predict hardening behavior during cold pilgering. Valuable insights and a practical modeling approach for enhancing the simulation and optimization of cold pilgering processes are provided by this work.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-024-01864-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical and experimental study of the consolidation of continuous carbon fiber thermoplastics made by robotic 3D printing 机器人三维打印技术制造的连续碳纤维热塑性塑料固结的数值和实验研究

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-11-25 DOI: 10.1007/s12289-024-01865-5

Seyed Miri, Jash Rana, Kazem Fayazbakhsh, Chady Ghnatios

引用次数: 0

The evolution of thermal cycle, microstructures and mechanical properties of 6061 – T6 aluminum alloy thick plate Bobbin tool friction stir welded 6061 - T6 铝合金厚板波形工具搅拌摩擦焊的热循环、微观结构和机械性能的演变

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-11-07 DOI: 10.1007/s12289-024-01863-7

Jiacheng Feng, Wenbiao Gong, Wei Liu, Yupeng Li, Rui Zhu

{"title":"The evolution of thermal cycle, microstructures and mechanical properties of 6061 – T6 aluminum alloy thick plate Bobbin tool friction stir welded","authors":"Jiacheng Feng, Wenbiao Gong, Wei Liu, Yupeng Li, Rui Zhu","doi":"10.1007/s12289-024-01863-7","DOIUrl":"10.1007/s12289-024-01863-7","url":null,"abstract":"<div><p>The relationship between thermal cycle, microstructures and properties of the joint in bobbin tool friction stir welding (BT-FSW) of aluminum alloys thick plates has not been reported in the literature, and the variations of microstructures and properties along the thickness direction needs to be explored. The objective of this paper is to interpret the evolution of thermal cycle, microstructures and mechanical properties of 16 mm thick 6061-T6 aluminum alloy BT-FSW joint in the thickness direction. With a traverse speed of 200 mm/min and 300 r/min of rotation speed, the thermal cycle temperature of the joint central layer is about 6 ℃ lower than that of the Shoulder Affected Zone (SAZ), and the Retreating Side (RS) are about 20 ℃ higher than the Advancing Side (AS). In order to illustrate the differences in the thickness direction of the joint, the joint was divided equally into three slices along the thickness direction. It is found that the equiaxed grains sizes of the Stir Zone (SZ) are 19.6 µm, 15.2 µm and 21.3 µm respectively in each region of the SZ<sub>1</sub>, SZ<sub>2</sub> and SZ<sub>3</sub> in the thickness direction, and the recrystallization extent of the SZ<sub>1</sub> and SZ<sub>3</sub> is higher than that of the SZ<sub>2</sub>. Transition from the SZ to the Heat-Affected Zone (HAZ), where the precipitates changes from the cluster-GP zone and β phase to the β” and β’ phases. The Vickers hardness curves for the cross-section of the joint are W-shaped, and the minimum Vickers hardness is found in the transition zone of the Thermal-Mechanically Affected Zone (TMAZ) and HAZ, which is 60 HV, and the SAZ has roughly 10 HV greater hardness than that of the central layer of the SZ. Along the thickness direction, the average tensile strength of the slices #1, #2 and #3 of the joints are 188 MPa, and 160 MPa, and 180 MPa respectively. The fracture of the three slices is ductile fractures.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generalisation of the hydrodynamics model method for hot and cold strip rolling application 流体力学模型法在冷热轧板带轧制中的推广应用

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-10-21 DOI: 10.1007/s12289-024-01860-w

Derrez Mimoune, Mohamed Zaaf, Tudor Balan, Abdennacer Lemmoui

引用次数: 0

Optimisation of interlayer temperature in wire-arc additive manufacturing process using NURBS-based metamodel 使用基于 NURBS 的元模型优化线弧增材制造工艺中的层间温度

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-10-16 DOI: 10.1007/s12289-024-01857-5

Mathilde Zani, Enrico Panettieri, Marco Montemurro

{"title":"Optimisation of interlayer temperature in wire-arc additive manufacturing process using NURBS-based metamodel","authors":"Mathilde Zani, Enrico Panettieri, Marco Montemurro","doi":"10.1007/s12289-024-01857-5","DOIUrl":"10.1007/s12289-024-01857-5","url":null,"abstract":"<div><p>For wire arc additive manufacturing (WAAM) process the interlayer temperature highly influences the quality of manufactured parts. This paper proposes an optimisation of deposition parameters for a better control of interlayer temperature while reducing the printing time employing a Finite Element (FE) model and a metamodel based on Non Uniform Rational Basis Splines (NURBS) entities for a thin-walled part in aluminium alloy. Firstly, the thermal FE model is created to extract the interlayer temperature as a function of different deposition parameters that will be optimised. These parameters are the wire feed speed and the cooling time between deposition of two consecutive layers. Then, a NURBS-based metamodel is generated to approximate the (unknown) transfer function between input variables and output responses of the problem at hand. One of the advantages of this metamodeling strategy is the possibility of obtaining the gradient of the output responses without the requirement of further computational resources, as the resulting metamodel is available in analytical form with the requisite continuity and differentiability. The NURBS-based metamodel is generated as a solution of a three-step optimisation strategy aiming at determining all the parameters defining the shape of the NURBS entity. Finally, the NURBS-based metamodel is included in the optimisation process related to the considered application. The optimisation problem is defined as a weighted sum of different criteria, i.e., total printing time and the average interlayer temperature difference for each layer. The solution obtained is subsequently validated a posteriori using the high-fidelity FE model, demonstrating an excellent agreement between the prediction of the NURBS-based metamodel and those of the FE model.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

UNIMAT: An enhanced forming simulation model of prepreg woven fabrics, with application to process optimization for wrinkle mitigation UNIMAT：预浸料编织物的增强成型仿真模型，应用于减少褶皱的工艺优化

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-10-16 DOI: 10.1007/s12289-024-01856-6

Reza Sourki, Reza Vaziri, Abbas S. Milani

{"title":"UNIMAT: An enhanced forming simulation model of prepreg woven fabrics, with application to process optimization for wrinkle mitigation","authors":"Reza Sourki, Reza Vaziri, Abbas S. Milani","doi":"10.1007/s12289-024-01856-6","DOIUrl":"10.1007/s12289-024-01856-6","url":null,"abstract":"<div><p>Processing simulation of prepreg fabrics requires considering multiple interactive deformation mechanisms to reliably predict the response of a formed part. However, these mechanisms, especially the evolving fabric properties and their interactions, are often overlooked. In this study, through integration of a series of user-defined subroutines, a unified (enhanced) numerical model (called UNIMAT) is developed to simulate the forming of a plain-weave fiberglass/polypropylene prepreg. The model specifically involves simultaneous incorporation of the fabric nonlinear in-plane and out-of-plane behaviours (including local bending/reverse bending effect with hysteresis), the ply viscous behavior at room temperature, and inter-ply anisotropic friction as a function of the ply orientation, pressure, and slippage. UNIMAT is first validated with a benchmark hemisphere forming test, and is then used for process optimization to minimize wrinkle formation over a complex shape tool under a vacuum bagging process. The model accurately predicted the forming outcomes including the part topology, punch force, shear angles, and wrinkles’ overall severity. The optimization search, through a Convolutional Matrix Adaptation Evolution Strategy (CMA-ES) algorithm, demonstrated that the wrinkles state can be diminished by up to 30% if local constraints on the fabric boundaries are optimally applied using pressure risers (modifiers), prior to the start of the vacuum.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0