Notch ductility of steels for automotive components

Faccoli, Michela; Cornacchia, Giovanna; Gelfi, Marcello; Panvini, Andrea; Roberti, Roberto

doi:10.1016/j.engfracmech.2014.06.007

Cited by 24 publications

(6 citation statements)

References 53 publications

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“…Based on the comprehensive consideration of reducing energy consumption and improving safety performance, lightweight materials are becoming more prominent in the automobile industry. Twinning induced plasticity (TWIP) steel has excellent strength, plasticity and energy absorption, which makes it a good material for the structural parts of automobiles and anticollision parts [1,2]. The microstructure of TWIP steel is a single γ phase, and its excellent ductility is attributed to the strain hardening effect during plastic deformation [3].…”

Section: Introductionmentioning

confidence: 99%

Effects of cerium addition on the microstructure, mechanical properties and strain hardening behavior of TWIP steel Fe-18Mn-0.6C

Zhong

Wang

Luo

et al. 2022

Materials Characterization

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Section: Introductionmentioning

confidence: 99%

Effects of cerium addition on the microstructure, mechanical properties and strain hardening behavior of TWIP steel Fe-18Mn-0.6C

Zhong

Wang

Luo

et al. 2022

Materials Characterization

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“…2 ) in FPZ. Faccoli et al [28] and Kamat et al [29] conducted experiments to relate the critical J-integral J c with notch tip radius ρ. The value of critical J c integral increases with an increase in notch tip radius.…”

Section: Introductionmentioning

confidence: 99%

Fracture Toughness Analysis of Automotive-Grade Dual-Phase Steel Using Essential Work of Fracture (EWF) Method

Kumar

Schmidová

Konopík

et al. 2020

Metals

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Fracture toughness determination of dual-phase DP450 steel using the essential work of fracture (EWF) methodology is the major focus of this research work. The EWF method is used for the determination of fracture toughness of thin sheets in a plane stress dominant condition. The EWF method is discussed in detail with the help of DP450 steel experimental results. Double edge notched tension (DENT) specimens with fatigue pre-crack and without fatigue crack (notched) have been used for testing. Specific essential work of fracture (we), crack tip opening displacement (δce) and crack tip opening angle (ψe) parameters were used for the comparative analysis. High-intensity laser beam cutting technology was used for the preparation of notches. Fracture toughness values of fatigue pre-cracked and notched samples were compared. The effect of notch tip radius and fatigue crack on the fracture toughness values were analysed. Digital image correlation (DIC) technology was used for the identification of local strain distribution and validation of the methodology. Fractured surfaces were examined by a scanning electron microscope (SEM) to analyse the fracture morphology and stress state.

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“…Bu çelikler, gelecekte yaygınlaşacağı düşünülen elektrikli araçların hafifletilmesi çalışmalarında da önemini koruyacaktır [17]. Literatürde TWIP ve DP çeliğiyle ilgili çeşitli karşılaştırma çalışmaları yapılmıştır [2,[18][19][20][21]. Günümüzde sac metallerin şekillendirmesi esnasında çoğunlukla benzetim (simülasyon) programları kullanılmakta ve deneme yanılma yöntemi ile hataların giderilmesi yönteminden hemen hemen vazgeçilmektedir.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Ti̇cari̇ Twip900 Ve Dp600 Yüksek Mukavemetli̇ Çeli̇kleri̇n Otomoti̇v Endüstri̇si̇ndeki̇ Performanslarinin Karşilaştirilmasi

Kılıç¹,

Öztürk²

2016

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Mechanical properties and formability of TWIP900 steel, which is a new material for automotive industry, are investigated. TWIP steels have a good combination of high strength and high formability. Therefore, they are very attractive for the automotive industry. The energy absorption capability of the steel during collisions is a significant advantage. The biggest disadvantage of this steel is the relatively high springback of stamped parts. Tensile and springback behaviors of the material are investigated and compared with DP600 steel which is widely used in automotive industry. Besides, yield surfaces and forming limit diagrams for both materials are modelled and compared with each other. Results indicate that the use of TWIP steel will contribute weight reduction significantly, but the springback issue needs to be resolved. In finite element modelling of TWIP steel, it is seen that the Swift model gives more accurate results than the Backofen and Holloman models.

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Notch ductility of steels for automotive components

Cited by 24 publications

References 53 publications

Effects of cerium addition on the microstructure, mechanical properties and strain hardening behavior of TWIP steel Fe-18Mn-0.6C

Effects of cerium addition on the microstructure, mechanical properties and strain hardening behavior of TWIP steel Fe-18Mn-0.6C

Fracture Toughness Analysis of Automotive-Grade Dual-Phase Steel Using Essential Work of Fracture (EWF) Method

Ti̇cari̇ Twip900 Ve Dp600 Yüksek Mukavemetli̇ Çeli̇kleri̇n Otomoti̇v Endüstri̇si̇ndeki̇ Performanslarinin Karşilaştirilmasi

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