Weld orientation effects on the formability of tailor welded thin steel sheets

In this study, critical temperature and frequency characteristics of a doubly curved panel are reinforced by graphene nanoplatelets (GPLs) with the aid of a two-dimensional generalized differential quadrature method (2D-GDQM) are investigated. The size effects are included using nonlocal strain gradient theory (NSGT) that has two length scale parameters, and the panel is modeled as a panel using high order shear deformation theory (HSDT). The mechanical properties of GPLs are calculated based on the rule of mixtures and the modified Halpin–Tsai model. The novelty of the current study is in considering the effects of the thermal environment, various boundary conditions, and size effects on the frequency and critical temperature of the GPLRC panel. The validation is performed through the comparison of the numerical results for the frequency of the GPLRC panel and the literature. For more verification, a finite element model is presented using the finite element package to simulate the response of the current structure. The results created from a finite element simulation illustrate a close agreement with the numerical method results. The results demonstrate that GPLs’ weight function, the ratio of panel curvature (R1/R2), GPLs’ pattern, and size-dependent parameters have noticeable effects on the frequency and critical temperature characteristics of the GPLs-reinforced composite (GPLRC) curved panel. The favorable suggestion of this survey is that when designing the GPLRC structure, special attention should be paid to size-dependent parameters because the nonlocal and length scale parameters have an essential role in the static and dynamic behaviors of the GPLRC panel.

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“…The constitutive relations between stress and strain can be declared as following [24,29,[72][73][74][75][76][77][78][79][80][81][82]:…”

Section: Strain-stress Relationsmentioning

confidence: 99%

“…Eventually, the Lanczos eigensolver is presented to obtain eigenvalues of the current structure. The vector of displacement for the eight-node element S4R would be formulated as [72,74,76,81,107]:…”

Section: Verificationmentioning

confidence: 99%

Critical Temperature and Frequency Characteristics of GPLs-Reinforced Composite Doubly Curved Panel

et al. 2020

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“…In recent years, automobile manufacturers are in demand to improve the vehicles fuel e ciency and safety standards [1]. It has essential to design and select material with high strength, formability, and good weldability [2]. A new challenge to weld the high strength steel research is continue growing [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Silica Content on Mechanical and Microstructure Behaviour of Resistance Spot Welded Advanced Automotive TRIP Steels

Paranthaman¹,

Sundaram

Natrayan

2021

Silicon

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“…The tailored blanks are developed to optimize the performances by combining different shapes, thicknesses, surface properties, or materials. Tailored blanks manufacturing is based on sheet cutting, flexible plastic forming, and advanced welding techniques [1][2][3][4][5]. The flexibility and the potentialities of this class of components provide the designer with countless solutions to increase efficiency and develop sustainable products [6].…”

mentioning

confidence: 99%

On the Elastoplastic Behavior of Friction Stir Welded Tailored Blanks for Single Point Incremental Forming

Tucci¹,

Andrade‐Campos²,

Thuillier³

et al. 2021

Esaform 2021

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The current market requirements are increasingly pushing the industry towards the manufacturing of highly customized products. Tailored blanks are a class of sheet metals characterized by the local variation of properties, attributable to the presence of different materials, different thickness distribution, and thermal treatments. In the manufacturing of tailored welded blanks, welding and forming processes cover a central role. In this framework, friction stir welding demonstrated to be a suitable candidate technology for the production by joining of tailored blanks. Indeed, sheet metals welded by this solid-state welding process typically exhibit high formability when compared to the conventional welding methods. Due to the improved formability, a good deal of attention has been recently given toward the single point incremental forming (SPIF) process and its integration with FSW. Remarkable efforts have been dedicated to the numerical modeling of the SPIF of metallic alloy sheets jointed by FSW. The main criticisms in these models are related to the definition of the mechanical properties of the materials, which are affected by the structural alteration induced by the FSW. The present work aims to model the local alterations in the mechanical properties and to analyze how these local characteristics affect the formability of the blanks. With this purpose, a 20 mm wide sample collected from a FS welded blank of aluminum alloy AA6082 has been modeled using the mechanical properties variation achieved in a previous work. The influence of this local variation in properties has been assessed using a Finite Element Model Updating strategy.

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Weld orientation effects on the formability of tailor welded thin steel sheets

Cited by 84 publications

References 25 publications

Critical Temperature and Frequency Characteristics of GPLs-Reinforced Composite Doubly Curved Panel

Critical Temperature and Frequency Characteristics of GPLs-Reinforced Composite Doubly Curved Panel

Effect of Silica Content on Mechanical and Microstructure Behaviour of Resistance Spot Welded Advanced Automotive TRIP Steels

On the Elastoplastic Behavior of Friction Stir Welded Tailored Blanks for Single Point Incremental Forming

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