A Review on the Modeling of the Clinching Process Chain - Part III: Operational Phase

Schramm, Britta; Harzheim, Sven; Weiß, Deborah; Joy, Tintu David; Hofmann, Martin; Mergheim, Julia; Wallmersperger, Thomas

doi:10.1016/j.jajp.2022.100135

Cited by 8 publications

(1 citation statement)

References 88 publications

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“…An overview of the different corrosion mechanisms and their possible influence on clinched joints is given in Ref. [11]. In order to estimate the failure of corroded and non-corroded joints, mathematical models exist, which are a great alternative to costly experiments.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Corrosion and Fatigue Behavior of Clinched Joints

Harzheim

Hofmann

Wallmersperger

2023

Proc Appl Math and Mech

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The application area of clinched joints is steadily increasing. They are vastly used in the automotive industry to join car body parts. Clinched components are often exposed to different environmental conditions as well as cyclic mechanical loading. Those environments are common originators of multiple corrosion and material fatigue phenomena. It is thus important to include possible environmental factors into the design of the joining process, to ensure full functionality of the clinched joint during its service life. In order to estimate material failure in such joints, several experimental and numerical tools are available. However, the literature provides little knowledge about the combined influence of corrosion and high-cycle fatigue on the service life of clinched joints. In this work, a modeling framework is given that combines the effects of corrosion products formation on the fatigue life of clinched EN AW-6014/HCT590X+Z joints by means of numerical simulations.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Corrosion and Fatigue Behavior of Clinched Joints

Harzheim

Hofmann

Wallmersperger

2023

Proc Appl Math and Mech

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Coupled chemo‐electro‐mechanical model for galvanic corrosion in clinched components

Harzheim,

Chen,

Hofmann

et al. 2024

Proc Appl Math and Mech

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Mechanical clinching is a frequently used joining method for technical components. These joints are usually weak spots. Here, corrosion and fatigue are decisive influencing factors for the assessment of the service life of such joints. Corrosion generally leads to material deterioration and thus to premature failure of the joints. Under certain circumstances, however, corrosion can lead to an increased fatigue life. While this effect has not yet been fully understood, the present work provides a possible explanation and a modeling approach to predict the fatigue life of precorroded clinched joints. The increased fatigue life is observed when the clinched components are briefly (up to 3 weeks) exposed to a salt spray environment. During this time, a small layer of corrosion products protrudes from the metal surface and fills the gaps between the joined sheets. Due to the increased contact area, the mechanical stress in the joint decreases, resulting in an improved fatigue performance. Although there are a variety of corrosion phenomena, for example, pitting, intergranular, and transgranular corrosion as well as galvanic corrosion, experimental studies indicate that galvanic corrosion is the main contributor of this effect. In the present work, a coupled electro‐chemo‐mechanical corrosion model is presented and applied to two test cases. Case I: corrosion products growth, and Case II: corrosion products growth and mechanical loading.

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Research advances in fatigue behaviour of clinched joints

Liu

Chen

Deng³

et al. 2023

Int J Adv Manuf Technol

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A Review on the Modeling of the Clinching Process Chain - Part III: Operational Phase

Cited by 8 publications

References 88 publications

Numerical Investigation of the Corrosion and Fatigue Behavior of Clinched Joints

Numerical Investigation of the Corrosion and Fatigue Behavior of Clinched Joints

Coupled chemo‐electro‐mechanical model for galvanic corrosion in clinched components

Research advances in fatigue behaviour of clinched joints

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