Article
Materials Science, Multidisciplinary
Qihua Chen, Shixian Xu, Ming Lu, Jia Liu, Kenneth R. Shull
Summary: This study investigated the temperature dependencies of viscoelastic energy dissipation and fatigue crack propagation in filled silicone rubbers and natural rubbers. The findings showed that both types of rubbers exhibit a power law relationship with an exponent of 1.5 between fatigue crack growth per cycle and a normalized driving force. Moreover, silicone rubber deviated from the power law relation at elevated temperature, with crack morphology influencing fatigue resistance.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Marion Picquart, Gilles Poirey, Guillaume Puel, Denis Aubry
Summary: The study investigates the effects of friction and cavitation on the macroscopic response of filled elastomers through experimental methods, showing that each mechanism generates typical nonlinearities. Further analysis of the resulting curves provides clues for the correlation between the characteristics of nonlinearities and micro mechanisms in filled elastomers, contributing to the development of future models.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Puchong Thaptong, Pongdhorn Sae-Oui, Pairote Jittham, Chakrit Sirisinha
Summary: This study focuses on the effects of hybrid filler ratio and SBR type on tire tread performance. Results show that a CB ratio of 40 wt% achieves a good balance of tire performance, and S-SBR provides better overall tire performance than E-SBR, especially in the silica-filled system.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Characterization & Testing
Syam Prasad Ammineni, Ch. Nagaraju, D. Linga Raju
Summary: This study focuses on estimating the degradation and reduced damping ability of NBR over time in an oxidative environment. Changes in the NBR material were detected using FTIR and compared to the original material through DMA tests. The experimental results indicate that the damping ability of NBR decreases with age.
Review
Materials Science, Characterization & Testing
Michael Mueller-Pabel, Jose Alberto Rodriguez Agudo, Maik Gude
Summary: Accurate determination of cure-dependent viscoelastic properties is crucial for the processing and use of epoxy resin-based materials and structures. Despite frequent discussions in literature and practice, there are currently no standardized guidelines available. Therefore, a comprehensive review was conducted to provide holistic test protocols that consider the interaction between curing process, device capabilities, and the measured viscoelastic phenomena.
Article
Engineering, Mechanical
Heng Feng, Shan Gao, Liying Jiang
Summary: This study develops a finite element framework combining nonlinear field theory with a micro-macro constitutive model incorporating nonlinear material viscosity to investigate electromechanical responses and instability of DE actuators. A highly customized user-element subroutine (UEL) in Abaqus is used for FE implementation. The effects of nonlinear material viscosity on various instability modes of DE actuators are numerically investigated and validated against experimental data and analytical studies.
EXTREME MECHANICS LETTERS
(2021)
Article
Polymer Science
Sandeep S. Pole, Avraam I. Isayev
Summary: The study found that the surface area of fillers significantly influences the rheological behavior of star-shaped SSBR/silica compounds, with different surface area silicas showing distinct characteristics in LAOS and steady shear behavior. The Cox-Merz rule is valid for SBR gum but not for filled compounds. The Philippoff approach, correlating complex viscosity with shear rate amplitude and steady shear viscosity, has important implications for predicting processing behavior in the rubber industry.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Albert Serra-Aguila, Josep Maria Puigoriol-Forcada, Guillermo Reyes, Joaquin Menacho
Summary: A method was developed in this study to predict the tensile moduli of thermoplastic materials under different conditions, saving research time and reducing the number of tests. The method was validated and showed good results, being applicable to thermorheologically simple materials.
Article
Engineering, Mechanical
Kazutake Komori, Keisuke Matsushima
Summary: The study predicted ductile fracture during biaxial sheet stretching for two types of ferrous alloys and one type of nonferrous pure metal using the ellipsoidal void model. Experimental results showed that the fracture forming limit was not significantly affected by different magnitudes and types of prestrain. The calculated fracture forming limit using the ellipsoidal void model closely matched the experimental results, while the traditional ductile fracture criteria showed differences.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2022)
Article
Engineering, Mechanical
Aman Khurana, Ajay Kumar, Atul Kumar Sharma, M. M. Joglekar
Summary: This paper theoretically analyzes the effect of internal properties of polymer chains on the performance of Dielectric Elastomer actuators in dynamic modes of actuation. The results show that strong entanglements and crosslinks in polymer chains result in lower deformation levels in DC dynamic modes of actuation. Moreover, the study assesses the periodicity and stability of nonlinear oscillations exhibited by viscoelastic DE actuators.
NONLINEAR DYNAMICS
(2021)
Article
Polymer Science
Shuang Liu, Zonglin Peng, Yong Zhang, Denis Rodrigue, Shifeng Wang
Summary: Thermoplastic elastomers based on ground tire rubber are effective for recycling waste tire rubber. This study focuses on optimizing parameters such as rubber concentration and dispersion, as well as crosslinking degree, to produce valuable TPE. The addition of a compatibilizer improved the interfacial interactions between the rubber and plastic, resulting in improved mechanical properties and processability for the TPE.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Anandarup Bhattacharyya, Nitish Mishra, Tuhin Dolui, Jagannath Chanda, Prasenjit Ghosh, Rabindra Mukhopadhyay
Summary: The crack growth behavior of different filled rubber materials was studied, and it was found that the 80/20 NR-SBR compound exhibited the lowest crack growth rate and the highest viscous energy dissipation, indicating the best fatigue resistance.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Environmental
Hatice Kaplan Can, Serap Kavlak, Fatma Gurbuz, Mehmet Odabasi
Summary: This study investigates the structure, properties, and applications of cyanobacterial EPS, revealing its significant role in bloom formation and stress tolerance. The findings highlight the ecological importance and industrial potential of EPS due to its viscoelastic behavior and thermal stability.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Polymer Science
Huanming Chen, Lewis R. Hart, Wayne Hayes, Clive R. Siviour
Summary: This paper investigates the thermal and mechanical responses of healable polyurethane materials under different strain rates, focusing on low to high strain rate behaviors. By incorporating significant characterization experiments and a modeling framework, the research demonstrates the excellent reusability of the polymer and offers a new approach for high strain rate characterization of low modulus materials.
Article
Engineering, Chemical
J. W. Adams, C. G. Merrett
Summary: This study utilizes a dynamic mechanical analyzer (DMA) to obtain frequency domain data for constructing an accurate Prony series and analyzing viscoelastic materials. PMMA specimens were used following ASTM standards, and experiments were conducted at various temperatures to capture long-term behavior. Prony series were fitted to the data, and the impact of different factors on the series was investigated. The most accurate approach resulted in cumulative errors of 2.1% for storage modulus and 26% for loss modulus.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Mechanics
A. Mbiakop, A. Constantinescu, K. Danas
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2015)
Article
Energy & Fuels
Aurelie Azoug, Andrei Constantinescu, Robert Neviere, Guy Jacob
Article
Engineering, Mechanical
F. Auricchio, A. Constantinescu, M. Conti, G. Scalet
INTERNATIONAL JOURNAL OF FATIGUE
(2015)
Article
Mechanics
A. Mbiakop, A. Constantinescu, K. Danas
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2015)
Article
Engineering, Mechanical
S. Tabibian, E. Charkaluk, A. Constantinescu, F. Szmytka, A. Oudin
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2013)
Article
Engineering, Mechanical
M. Alquezar, V. Arrieta, A. Constantinescu, L. Flandi, M. H. Maitournam, P. Wackers
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2014)
Article
Engineering, Mechanical
Stefano Bosia, Andrei Constantinescu
INTERNATIONAL JOURNAL OF FATIGUE
(2012)
Article
Engineering, Mechanical
Shadan Tabibian, Eric Charkaluk, Andrei Constantinescu, Fabien Szmytka, Alexis Oudin
INTERNATIONAL JOURNAL OF FATIGUE
(2013)
Article
Engineering, Mechanical
F. Auricchio, A. Constantinescu, G. Scalet
INTERNATIONAL JOURNAL OF FATIGUE
(2014)
Article
Engineering, Mechanical
E. Charkaluk, A. Constantinescu, F. Szmytka, S. Tabibian
INTERNATIONAL JOURNAL OF FATIGUE
(2014)
Article
Mechanics
A. Constantinescu, A. M. Korsunsky, O. Pison, A. Oueslati
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2013)
Article
Polymer Science
A. Azoug, A. Constantinescu, R. M. Pradeilles-Duval, M. F. Vallat, R. Neviere, B. Haidar
JOURNAL OF APPLIED POLYMER SCIENCE
(2013)
Article
Materials Science, Multidisciplinary
V. Doquet, N. Ben Ali, A. Constantinescu, X. Boutillon
MECHANICS OF MATERIALS
(2013)
Article
Materials Science, Characterization & Testing
Aurelie Azoug, Anders Thorin, Robert Neviere, Rachel-Marie Pradeilles-Duval, Andrei Constantinescu
