Journals / İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi / 2024 / Cilt: 23 Sayı: 46

CALIBRATION OF CHABOCHE KINEMATIC HARDENING MODEL PARAMETERS BY OPTIMISATION

İlyas Kacar(NİĞDE ÖMER HALİSDEMİR ÜNİVERSİTESİ)0000-0002-5887-8807
Pages
354–372
Publication Date
2024-12-27
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Chaboches calibrated parameters are YS=370,73 MPa, C=3513,5 MPa, and =47,958 while their initial values are YS=360 MPa, C=3500 MPa, and =90.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Drag links are used in the automotive industry mostly, and during painting, their ends are protected against paint by two types of cap productions.
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Key Findings & Data:In this study, a finite element simulation for the deformation process of a drag link’s cap made from St52 alloy is performed.
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Conclusion & Impact:Chaboches calibrated parameters are YS=370,73 MPa, C=3513,5 MPa, and =47,958 while their initial values are YS=360 MPa, C=3500 MPa, and =90.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Chaboche modeli · kinematik pekleşme · optimizasyon

Abstract

Drag links are used in the automotive industry mostly, and during painting, their ends are protected against paint by two types of cap productions. While one is machined, the other is cold formed. In this study, a finite element simulation for the deformation process of a drag link’s cap made from St52 alloy is performed. For the plasticity model, Chaboche’s nonlinear kinematic hardening rule is used with the associated flow rule and Von Mises yield criterion. Chaboche’s parameters are determined by low cycle fatigue test by applying curve fitting methods to one hysteresis loop. Furthermore, the Chaboche model parameters are calibrated by the optimization process. The final diameters of the cap measurements are compared with those obtained from the optimized model. Therefore, a comprehensive methodology is presented for the determination and calibration of Chaboche kinematic hardening model parameters. Chaboches calibrated parameters are YS=370,73 MPa, C=3513,5 MPa, and =47,958 while their initial values are YS=360 MPa, C=3500 MPa, and =90.

Özet

Rot kolu çoğunlukla otomotiv endüstrisinde kullanılmakta ve boyama sırasında uçları iki tip kapak üretim yöntemiyle boyaya karşı korunmaktadır. Bunlardan biri talaşlı imalat, diğeri ise soğuk şekillendirmedir. Bu çalışmada, St52 alaşımından yapılmış bir rot kolunun kapağının deformasyon işlemi için bir sonlu elemanlar simülasyonu gerçekleştirilmiştir. Plastisite modelini oluşturmak için Chaboche'nin doğrusal olmayan kinematik pekleşme kuralı, ilişkili akış kuralı ve Von Mises akma kriteri kullanılmıştır. Chaboche parametreleri, bir histerezis döngüsüne eğri uydurma yöntemleri uygulanarak düşük çevrimli yorulma testi ile belirlenmiştir. Ayrıca, Chaboche model parametreleri optimizasyon işlemi ile kalibre edilmiştir. Kapak ölçümlerinin nihai çapları, optimize edilmiş modelden elde edilenlerle karşılaştırılmıştır. Chaboche kinematik pekleşme modelinin parametrelerinin belirlenmesi ve kalibrasyonu için kapsamlı bir yöntem sunulmuştur. Kalibre edilen Chaboche parametreleri YS=370,73 MPa, C=3513,5 MPa ve =47,958 iken başlangıç değerleri YS=360 MPa, C=3500 MPa ve =90'dır.

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Cite This Article

Araslı, A., Kacar, İ. (2024). CALIBRATION OF CHABOCHE KINEMATIC HARDENING MODEL PARAMETERS BY OPTIMISATION. İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi, Cilt: 23 Sayı: 46, 354–372. https://doi.org/10.55071/ticaretfbd.1449025

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