Development of a numerical simulation model for self-piercing riveting of additive manufactured AlSi10Mg

Heyser, Per; Petker, Rudolf; Meschut, Gerson

doi:10.1177/14644207231158213

Cited by 3 publications

(4 citation statements)

References 23 publications

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“…To better understanding the evolution of the stress state, we will extract the contributions of each of the two types of hardening: kinematic (X) and isotropic (R). For that, the calculation method is based on evaluating the plastic deformation during each cycle 32,40 . This method is schematized in Figure 4, from which we can extract the following two formulas (Equation (2)):

({, \begin{matrix} R goodbreak= \frac{σ_{\max} - σ_{offset}}{2} goodbreak- σ_{y} \\ X goodbreak= \frac{σ_{\max} + σ_{offset}}{2} \end{matrix})

…”

Section: Resultsmentioning

confidence: 99%

“…For that, the calculation method is based on evaluating the plastic deformation during each cycle. 32,40 This method is schematized in Figure 4, from which we can extract the following two formulas (Equation ( 2)):…”

Section: Methodsmentioning

confidence: 99%

“…May 30 and Heyser et al 31 investigated the cyclic deformation behavior of aluminum alloys under multiaxial loading conditions. May et al 32 analyzed the cyclic behavior and fatigue damage of an extruded AA2017 aluminum alloy under multiaxial loading conditions.…”

Section: Introductionmentioning

confidence: 99%

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Cyclic behavior of AA2024 aluminum alloy under different loading paths and heat treatments

Mokdad,

May,

Belattar

et al. 2023

Fatigue Fract Eng Mat Struct

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The focus of this study is to investigate the impact of cyclic loading path and temperature on the mechanical behavior of AA2024 aluminum alloy, a material commonly used in the aerospace industry. Our study aims to understand the cyclic evolution of work hardening (isotropic and kinematic) in response to different loading paths: tension‐compression cycles followed by equivalent torsion cycles, and vice versa. We also perform microstructural investigations using a scanning electron microscope (SEM) to gain insights into the evolution of fatigue damage during cyclic loading. By examining these factors, we aim to provide insights into the material's mechanical behavior and anisotropy. This research contributes to improving our understanding of the performance of AA2024 alloy under cyclic loading conditions.

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({, \begin{matrix} R goodbreak= \frac{σ_{\max} - σ_{offset}}{2} goodbreak- σ_{y} \\ X goodbreak= \frac{σ_{\max} + σ_{offset}}{2} \end{matrix})

…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Cyclic behavior of AA2024 aluminum alloy under different loading paths and heat treatments

Mokdad,

May,

Belattar

et al. 2023

Fatigue Fract Eng Mat Struct

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“…Additionally, the MMC criterion (Equation ( 10)) includes the parameters K and n, which represent the strain-hardening behavior, as well as three material constants denoted as C 1 , C 2 , and C 3 . While single-constant criteria may have fewer capabilities compared to multi-constant criteria, they are often preferred in designing manufacturing processes due to their simplicity [26][27][28]. Furthermore, each single-constant criterion can offer accurate results for a specific fracture mode.…”

Section: Ductile Fracture Modellingmentioning

confidence: 99%

Ductile Fracture Prediction in Hole Hemming of Aluminum and Magnesium Sheets

Kasaei,

Pereira,

Carbas

et al. 2023

Metals

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The present work proposes a suitable approach for predicting ductile fracture in a new joining process by plastic deformation called hole hemming. This process creates a combined form- and force-fit joint and enables the joining of lightweight materials with varying formability without requiring heating or auxiliary elements. In this process, the joinability of materials is limited by the occurrence of fracture in the outer sheet, highlighting the crucial need to accurately predict its damage during the process design phase. In this study, five different fracture criteria, including the McClintock, Rice–Tracey, Normalized Cockroft–Latham, and Brozzo and Modified Mohr–Coulomb (MMC) criteria, are examined during the joining of a challenging combination of lightweight materials (aluminum AA6082-T4 and magnesium AZ31). These criteria are calibrated by a hybrid experimental–numerical method using three tests with distinct stress states. These criteria are then implemented into the finite element model of the hole hemming process, utilizing an appropriate user subroutine. The results show that the flange edge of the outer sheet is the most prone region to fracture during the joining process, and a criterion must be able to model the fracture behavior of the material from uniaxial tension to shear to accurately predict fracture in this area. Among the examined criteria, only the MMC criterion was capable of such modeling and accurately predicted the critical displacement of the punch in the hemming stage with a negligible error (about 1%). On the other hand, the prediction accuracy of the other criteria varied significantly depending on the calibration test, resulting in errors ranging from 8.6% to 75.5%. The error of 8.6% was achieved with the Normalized Cockroft–Latham criterion calibrated by a uniaxial tension test. Thus, based on the results, the MMC criterion is recommended for ductile fracture prediction in the hole hemming process, offering valuable insights to assist in process design.

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