International Journal of Material Forming最新文献

Experimental and numerical analysis of deformation and residual stress produced by stressing ultrasonic impact forming (SUIF)

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-18 DOI: 10.1007/s12289-024-01873-5

Chaobo Guo, Lulu Cui, Kai Tao, Huimin Wang

{"title":"Experimental and numerical analysis of deformation and residual stress produced by stressing ultrasonic impact forming (SUIF)","authors":"Chaobo Guo, Lulu Cui, Kai Tao, Huimin Wang","doi":"10.1007/s12289-024-01873-5","DOIUrl":"10.1007/s12289-024-01873-5","url":null,"abstract":"<div><p>Ultrasonic impact forming (UIF) is an essential cold working process for forming large thin-walled components. Stressing ultrasonic impact forming (SUIF) can produce more deformation than UIF in the prebending direction. In this paper, a four-step numerical model including prestress submodel, impact treatment submodel, data transfer submodel and prestress forming submodel is developed to simulate the SUIF process. The effect of nonuniform residual stress on plate deformation is investigated, the change regulation of residual stress is discussed, the effect of elastic prebending radius on the plate deformation is analyzed. The narrow plate can obtain a nearly single curvature deformation by SUIF. Compared to narrow plate, the square plate can produce smaller deformation in device offset direction. Compared to UIF, SUIF can produce smaller compressive stress in the top surface layer, larger tensile stresses in device moving direction, and smaller tensile stresses in device offset direction; SUIF can produce larger deformation in device offset direction. With the decrease in prebending radius, compressive residual stresses changes little, and the tensile stress increases in the device offset direction, the deformation increases in the device offset direction and decreases in the device moving direction.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844726","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

Effects of geometric parameters of screw type blind rivet joints on large blind head formation and pre-load 螺钉型抽芯铆钉接头的几何参数对大盲头形成和预紧力的影响

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-18 DOI: 10.1007/s12289-024-01862-8

Jiaming Feng, Jingdong Zhang, Tong Chen, Xu Wu, Ridong Liao

{"title":"Effects of geometric parameters of screw type blind rivet joints on large blind head formation and pre-load","authors":"Jiaming Feng, Jingdong Zhang, Tong Chen, Xu Wu, Ridong Liao","doi":"10.1007/s12289-024-01862-8","DOIUrl":"10.1007/s12289-024-01862-8","url":null,"abstract":"<div><p>Due to the labor-saving one-sided installation and little composite damage, screw type blind rivets are widely used for clinching composite structures in the aerospace field. However, there is a lack of comprehensive understanding of their setting process and the effects of geometric parameters on the large blind head formation and pre-load. In this paper, a 3D finite element model of a typical screw type blind rivet was built and validated by experimental results. According to the simulation results, it was found that the large blind head’s shape and pre-load were highly sensitive to the thickness ratio of insert and sleeve, the height ratio of insert and sleeve, the tapered angle of the nut body nose and the inclining angle, while the tapered angle of sheet and the height ratio of insert and sleeve’s inner stepped surface had relatively little impacts. Specifically, the thickness ratio, height ratio and nose angle had the suitable ranges, not within which an unqualified blind head with minor pre-load, small diameter, or (and) prohibited double flexures would occur. The pre-load is inversely proportional to inclining angle, whose optimum is 0°. In addition, the divided stages revealed the drop of pre-load caused by instability, while no instability took place in large thickness ratio. The accurate and reliable 3D model would build confidence in improving joint integrity and in further studying the failure mechanisms of joints, including loosening and composite damage.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844727","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

Research on magnetorheological elastomer assisted flexible multi-point stretch-bending technology 磁流变弹性体辅助柔性多点拉伸弯曲技术研究

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-16 DOI: 10.1007/s12289-024-01870-8

Ce Liang, Binglong Gao, Songyue Yang, Yu Wen, Yi Li

{"title":"Research on magnetorheological elastomer assisted flexible multi-point stretch-bending technology","authors":"Ce Liang, Binglong Gao, Songyue Yang, Yu Wen, Yi Li","doi":"10.1007/s12289-024-01870-8","DOIUrl":"10.1007/s12289-024-01870-8","url":null,"abstract":"<div><p>Creasing defects in aluminum profiles post-forming significantly hinder their utilization. This study aimed to mitigate these defects by investigating the causes and mitigating strategies for two types of creases in aluminum profiles formed via flexible stretch bending with roller-type multi-point dies (FSBRD). To achieve dynamic control over the mold surface, magnetorheological elastomers (MREs) were employed to harness their magnetorheological effect, enabling adjustable mold hardness. The adjustable hardness of the mold, enabled by MREs, was investigated under varying magnetic inductions to form T-shaped profiles. The results quantitatively demonstrate that the addition of MREs significantly reduces crease defects, with a minimum value of thick direction strain not exceeding -0.1, and improves moulding quality. Specifically, at a profile thickness of 10mm, an optimal magnetic induction of 200mT minimized crease depth, while for a 66mm thickness, 400mT was most effective. It was also found that increasing the coefficient of friction between the MRE and the contour resulted in a decrease in crease depth and a decrease followed by an increase in crease height. Experimental validation confirmed the simulation accuracy, with thickness trends of the experimentally formed profiles closely matching the simulated ones. The study concludes that the FSBRD-M process is effective in controlling creases and expands the application of MREs in forming technology.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142826414","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

Machine learning methods for springback control in roll forming

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-12-13 DOI: 10.1007/s12289-024-01872-6

Shiyi Cu, Yong Sun, Kang Wu

引用次数: 0

Development of coupled finite element model to investigate electromagnetic forming and simultaneous multi-point perforations of Aluminium tube

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

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

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

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

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