Investigation on the constraint effect on the fracture toughness assessment of stainless steel AISI 304L thin sheets

• Autorzy: Bensaada Rachid , Almansba Madjid , Ferhoum Rabah , Sidhoum Zehra , Habak Malek

Identyfikatory

DOI

10.15632/jtam-pl/115361

• Języki publikacji: EN

Abstrakty

EN

The aim of the study is to assess the constraint effect induced by variation of geometric pa- rameters on fracture toughness of stainless steel 304L thin sheets. A combined experimental-computational method is used. Compact Tension (CT) tests are firstly done using a spe- cial device realized to avoid buckling problems. Finite element analysis is used including the GTN (Gurson-Tvergaard-Needleman) model based on micromechanical assumptions of ductile fracture to obtain crack propagation. The fracture toughness is evaluated using an in- cremental formulation of the J-Integral. The results obtained show a quantified dependency of the critical fracture toughness on the constraint effect.

Słowa kluczowe

EN

ductile damage; fracture toughness; porosity; crack propagation; J-Integral

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2020
• Tom: Vol. 58 nr 1
• Strony: 143--153
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Bensaada Rachid

• Tizi-Ouzou University, Mechanical Engineering Department, Tizi-Ouzou, Algeria

autor

Almansba Madjid

• Tizi-Ouzou University, Mechanical Engineering Department, Tizi-Ouzou, Algeria

autor

Ferhoum Rabah

• Tizi-Ouzou University, LEC2M Laboratory, Tizi-Ouzou, Algeria

autor

Sidhoum Zehra

• Tizi-Ouzou University, LEC2M Laboratory, Tizi-Ouzou, Algeria

autor

Habak Malek

• University of Picardie Jules Verne, Laboratory of Innovative Technology, Amiens, France

Bibliografia

• 1. ASTM, 2014, E1820-13: Standard Test Method for Measurement of Fracture Toughness.
• 2. Bensaada R., Almansba M., Ferhoum R., Sidhoum Z., 2018, Ductile fracture study of stainless steel AISI 304L thin sheets using the EWF method and cohesive zone modeling, Journal of Failure Analysis and Prevention, 18, 5, 1181-1190.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).