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Article Dans Une Revue Experimental Mechanics Année : 2022

Improvement of the Arcan setup for the investigation of thin sheet behavior under shear loading

Résumé

Background: Accurate predictions of thin sheet material springback during forming processes are of great interest in the forming industry. However, thin sheets are susceptible to buckling under shear loading. Objective: The present research aims at improving the so-called Arcan setup for testing thin (1-5 mm) sheet samples with large gauge areas (i.e., width about 21 mm) by introducing anti-buckling devices to mitigate sample buckling. Method: Three monotonic and one cyclic shear tests were carried out on 1 mm thick C60 high carbon steel. Results: The use of the proposed anti-buckling device resulted in the suppression of sample buckling. Numerical analyses of the experiment where buckling was eliminated revealed predominant shear stress states in the gauge area (i.e., stress triaxiality = 0), which highlights minor influences of the anti-buckling device on the sample stress state. Conclusion: To suppress buckling, the use of anti-buckling devices was essential. Moreover, the friction coefficient between the sample and the proposed devices was calibrated (µ = 0.33) in addition to kinematic hardening parameters.
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Dates et versions

hal-03300104 , version 1 (26-07-2021)

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A Zaplatić, Z Tomičević, D Čakmak, François Hild. Improvement of the Arcan setup for the investigation of thin sheet behavior under shear loading. Experimental Mechanics, 2022, 62, pp.313-332. ⟨10.1007/s11340-021-00762-1⟩. ⟨hal-03300104⟩
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