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Journals / Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji / 2026 / Cilt: 14 Sayı: 2

Realistic Finite Element Modeling Procedure of a Viscoelastic Material Characterization Test Set-Up

Bir Viskoelastik Malzeme Karakterizasyonu Test Düzeneğinin Gerçekçi Sonlu Elemanlar Modelleme Prosedürü

Fulya Erol(ORTA DOĞU TEKNİK ÜNİVERSİTESİ)0000-0002-9133-2232
Gökhan Osman Özgen(ORTA DOĞU TEKNİK ÜNİVERSİTESİ)0000-0003-2669-340X
Pages
1040–1061
Publication Date
2026-06-30
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AI Summary & Key Takeaways

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

The main purpose of this study is to serve as a guide to similar future test set-up design studies during the finite element modeling phase.

📌 3 Key Takeaways

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Objective & Hypothesis:To determine the frequency and temperature dependent dynamic properties of viscoelastic materials, driving-point method proposed by ISO 10846-5:2008 is adopted, and accordingly a test set-up is already designed, manufactured and installed with the selected test equipment, and sample characterization tests are conducted.
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Key Findings & Data:The efforts expended to design the test set-up are aimed at maximizing the first modal frequency of the fixture to which the test specimens are attached to be able to achieve the widest possible frequency range for accurate measurement of frequency dependent dynamic properties.
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Conclusion & Impact:The main purpose of this study is to serve as a guide to similar future test set-up design studies during the finite element modeling phase.
🔬Design:Modeling & Simulation
📍Scope:2008 Verileri
⚙️Variables:Viskoelastik malzeme karakterizasyonu · Kompleks sertlik ölçümü · Elastomer test sistemi

Abstract

To determine the frequency and temperature dependent dynamic properties of viscoelastic materials, driving-point method proposed by ISO 10846-5:2008 is adopted, and accordingly a test set-up is already designed, manufactured and installed with the selected test equipment, and sample characterization tests are conducted. The efforts expended to design the test set-up are aimed at maximizing the first modal frequency of the fixture to which the test specimens are attached to be able to achieve the widest possible frequency range for accurate measurement of frequency dependent dynamic properties. When the test results are investigated, it is detected that the actual first modal frequency of the test set-up is quite low compared to the predicted frequency through finite element modeling and analysis based on the idealized conditions. Thus, in this study, finite element model of the test set-up utilized during the design process is improved by focusing on defining the connections between the components of the test set-up and the boundary conditions of the test set-up consistently with the real-life conditions. For this purpose, bolted joints between the components of the test set-up and the ground onto which the test set-up is mounted are modeled. To evaluate the finite element modal analysis results, modal tests are performed on the test set-up, and eventually the improved finite element model has yielded the first modal frequency of the test set-up as almost the same as the experimentally determined frequency with also very similar mode shapes. The main purpose of this study is to serve as a guide to similar future test set-up design studies during the finite element modeling phase.

Özet

Viskoelastik malzemelerin frekansa ve sıcaklığa bağlı dinamik özelliklerini belirlemek için ISO 10846-5:2008 tarafından önerilen tahrik noktası metodu benimsenmiş ve buna göre bir test düzeneği önceden tasarlanmış, üretilmiş ve seçilmiş test ekipmanlarıyla birlikte kurulmuş ve örnek karakterizasyon testleri yapılmıştır. Test düzeneğinin tasarımı için harcanan çabalar, frekansa bağlı dinamik özelliklerin doğru ölçümü için mümkün olan en geniş frekans aralığını elde edebilmek için test numunelerinin bağlandığı fikstürün ilk modal frekansının maksimize edilmesini hedeflemiştir. Test sonuçları incelendiğinde test düzeneğinin gerçek ilk modal frekansının ideal koşullara dayalı sonlu elemanlar modelleme ve analizi sonucunda tahmin edilen frekansa göre oldukça düşük olduğu tespit edilmiştir. Böylece bu çalışmada, test düzeneğinin bileşenleri arasındaki bağlantıların ve test düzeneğinin sınır koşullarının gerçek yaşam koşullarıyla tutarlı olarak tanımlanmasına odaklanılarak test düzeneğinin tasarımı sürecinde kullanılan sonlu elemanlar modeli iyileştirilmiştir. Bu amaçla düzeneğin bileşenleri arasındaki cıvatalı bağlantılar ve düzeneğin üzerine monte edildiği zemin modellenmiştir. Sonlu elemanlar modal analiz sonuçlarını değerlendirmek için test düzeneğinin üzerinde modal testler yapılmıştır ve sonuç olarak iyileştirilmiş sonlu elemanlar modelinden elde edilen test düzeneğinin ilk modal frekansı deneysel olarak elde edilen frekansla neredeyse aynıdır ve bunun yanında mod şekilleri de oldukça benzerdir. Bu çalışmanın temel amacı gelecekteki benzer test düzeneği tasarımı çalışmalarına sonlu elemanlar modelleme aşamasında kılavuzluk etmektir.

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Cite This Article

Erol, F., Özgen, G. O. (2026). Realistic Finite Element Modeling Procedure of a Viscoelastic Material Characterization Test Set-Up. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji, Cilt: 14 Sayı: 2, 1040–1061. https://doi.org/10.29109/gujsc.1694985

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