Article
Engineering, Mechanical
Puja Ghosal, Surajit Kumar Paul, Abhishek Raj
Summary: The study found that a 10% uniaxial and equi-biaxial tensile pre-strain improved the notch fatigue performance of DP590 steel, but had little impact on notch fatigue life.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2021)
Article
Engineering, Mechanical
Puja Ghosal, Surajit Kumar Paul, Abhishek Raj
Summary: This study found that pre-strain increases the strength of the material, reduces its ductility, and enhances its HCF performance. Pre-strain has different effects on the tensile limit, yield strength, and endurance limit of the material.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Materials Science, Composites
Yiwan Sun, Lihai Cai, Weiguang Shao, Wenyan Liu
Summary: This paper explores the effects of woven fabric structures on the biaxial tensile mechanical properties and burst properties of woven fabric for layflat hose. By using a repeat unit cell finite element modeling, the effects of warp yarn spacing and weft yarn linear density on mechanical responses and burst properties are studied, and the finite element method is found to accurately predict the burst pressure of layflat hose.
POLYMER COMPOSITES
(2022)
Article
Mechanics
Hyungbum Park, Jang-Woo Han, Wonjin Na, Jaesang Yu
Summary: The multiaxial deformation behaviors of amorphous epoxy polymers were studied using planar biaxial compression tests and finite element (FE) analyses. A customized offset-based yield criterion was proposed to accurately determine the initial yield surface, which could not be described properly by existing classical yield functions. The results emphasized the need for a new customized yield function that can properly describe the broader initial yield surface and its transition to plastic behavior.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Civil
Junfu Bai, Niel C. Van Engelen, Shaohong Cheng
Summary: This study validated the analytical solution for reinforced elastomeric bearings (REBs) subjected to lift-off using finite element analysis (FEA), while also analyzing the shear strain distribution in the rubber layers. The results indicated that the analytical solutions could predict the behavior of REBs experiencing lift-off.
ENGINEERING STRUCTURES
(2021)
Article
Polymer Science
Satya Guha Nukala, Ing Kong, Akesh Babu Kakarla, Vipulkumar Ishvarbhai Patel, Hossam Abuel-Naga
Summary: Wood is a widely available material that is extensively used as reinforcement in polymer composites. Wood polymer composites (WPCs) have various applications in different industries. However, measuring the properties of WPCs accurately is challenging, and finite element analysis (FEA) can help overcome this issue by predicting the mechanical properties of WPCs. Additionally, using simulation tools to predict material properties is a cost-effective technique for studying new materials under different load conditions.
Article
Dentistry, Oral Surgery & Medicine
Seoung-Jin Hong, Hyeonjong Lee, Yeun-Yi Lee, Kung-Rock Kwon
Summary: This study evaluated the retention force and stress distribution in a novel implant-supported fixed prosthesis CLD system. The results showed that the CLD type had clinically acceptable retention during 1 000 000 load cycles and had a similar or better stress distribution capability than the cement-retained type.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Article
Engineering, Multidisciplinary
Mohsen Jahanshahi
Summary: This article presents a new mixed finite element formulation for the analysis of two-dimensional compressible solids in finite strain regime. By utilizing a three-field Hu-Washizu functional and imposing certain constraints, the formulation provides a efficient implementation and shows excellent convergence properties. The performance of the method is studied through benchmark numerical examples and it is compared with other similar elements, demonstrating its numerical stability and superiority in certain problems.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Benjamin G. Stewart, Suresh K. Sitaraman
Summary: The study highlights the potential misrepresentation of failure modes of flexible ink systems when only tested under uniaxial strains, as real-world conditions often involve strains in multiple dimensions. A novel inflation test method successfully induces a biaxial strain-state in the substrate-ink system, revealing different failure thresholds between uniaxial and biaxial strains. Analytical and numerical models accurately describe the electrical and mechanical behavior of the system, supported by experimental results and data from 3D digital image correlation and finite-element analysis.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Engineering, Biomedical
Kangning Su, Yuxiao Zhou, Mehran Hossaini-Zadeh, Jing Du
Summary: In this study, finite element models based on micro-CT images were used to investigate bone-implant mechanics, showing higher strain concentration in the thinner buccal bone plates and the impact of implant distance from the buccal plate on mechanical stimuli in bone, which may affect bone remodeling and resorption processes.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
A. L. Paganotti, R. R. Saldanha, M. M. Afonso, A. C. Lisboa
Summary: This article proposes a new methodology for the sensitivity analysis evaluation of electric potential distribution near transmission lines using the finite element method and adjoint method. The objective function's sensitivity is utilized during the optimization process to obtain new geometries with high surge impedance loading.
IEEE TRANSACTIONS ON MAGNETICS
(2022)
Article
Materials Science, Multidisciplinary
Ziliang Li, Ye Zhu, Meng Li, Yu Luo
Summary: This study presents a new method for assessing the welding crack sensitivity using the equivalent plastic strain increment as an indicator. The reliability of the method is verified by comparing computed results and experimental results. The results show that the equivalent plastic strain increment can be used as an indicator for evaluating the welding crack sensitivity of joints, and the sensitivity decreases with an increase in the number of weld passes for multi-pass welded joints.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Multidisciplinary Sciences
Yonggou Lou, Lei Chen, Hongbing Wu, Sandy To
Summary: The Ti-6Al-4V titanium alloy is a lightweight material widely used in the aerospace industry due to its high specific strength, corrosion resistance, and heat resistance. However, it presents poor machinability and rapid tool wear during processing. By analyzing the influence of cutting speed on ultra-precision cutting of titanium alloy, it was found that better surface quality could be achieved at lower cutting speeds.
Article
Engineering, Mechanical
J. C. Nieto-Fuentes, N. Jacques, M. Marvi-Mashhadi, K. E. N'souglo, J. A. Rodriguez-Martinez
Summary: This paper investigates the effect of porous microstructure on the necking formability of ductile sheets subjected to dynamic in-plane stretching. It compares finite element calculations with actual void distributions obtained from additively manufactured materials to simulations with a continuum plasticity theory that considers porosity as an internal state variable. The results show that the necking forming limits obtained from the two methods are in qualitative agreement, with the simulations including actual void distributions predicting greater necking strains. The study also reveals that voids promote plastic localization and their spatial distribution heterogeneity affects plastic localization.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Multidisciplinary Sciences
Osamah Al-Dori, Betul Sakar, Atilla Donuk
Summary: This study provides robust guidelines for researchers and designers to precisely estimate losses and leakage reactance in distribution transformers. Analytical and numerical methods are used to estimate transformer lifespan and improve grid quality during the design stage.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Mechanics
M. Hajikazemi, L. N. McCartney, H. Ahmadi, W. Van Paepegem
COMPOSITE STRUCTURES
(2020)
Article
Materials Science, Composites
Kalliopi-Artemi Kalteremidou, Mohammad Hajikazemi, Wim Van Paepegem, Danny Van Hemelrijck, Lincy Pyl
COMPOSITES SCIENCE AND TECHNOLOGY
(2020)
Editorial Material
Materials Science, Composites
Atul Jain, Yasmine Abdin, Wim Van Paepegem, Stepan V. Lomov
COMPOSITES SCIENCE AND TECHNOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Timo Meireman, Lode Daelemans, Elisa Van Verre, Wim Van Paepegem, Karen De Clerck
MATERIALS & DESIGN
(2020)
Article
Engineering, Manufacturing
M. Hajikazemi, L. N. McCartney, W. Van Paepegem
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2020)
Article
Engineering, Multidisciplinary
Gaetan Poelman, Saeid Hedayatrasa, Joost Segers, Wim Van Paepegem, Mathias Kersemans
COMPOSITES PART B-ENGINEERING
(2020)
Article
Materials Science, Composites
C. Breite, A. Melnikov, A. Turon, A. B. de Morais, F. Otero, F. Mesquita, J. Costa, J. A. Mayugo, J. M. Guerrero, L. Gorbatikh, L. N. McCartney, M. Hajikazemi, P. P. Camanho, R. P. Tavares, S. Lomov, S. Pimenta, W. Van Paepegem, Y. Swolfs
Summary: This paper presents a blind benchmark of seven different models applied to two virtual materials for prediction of longitudinal tensile failure of unidirectional composites. Capturing the localization of stress concentrations was vital in predicting the effect of matrix stiffness and strength on composite failure strain and strength as well as fiber break and cluster development. The discussions provide insight into how model assumptions are linked to the differences in predictions.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Lode Daelemans, Olivier Verschatse, Lisa Heirman, Wim Van Paepegem, Karen De Clerck
Summary: The addition of electrospun thermoplastic nanofibers is a viable toughening strategy for designing nanofiber reinforced epoxy materials with excellent toughness, particularly polyamide and polycaprolactone nanofibers can increase the plastic energy uptake up to 100%. The main energy-absorbing mechanism was found to be bridging nanofibers, although a lack of adhesion with the matrix resulted in a decrease in toughening efficiency, especially when oriented parallel with the crack growth direction. The study provides insights for material design in applications requiring high toughness such as adhesives, coatings, and fiber-reinforced composite laminates.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Liangliang Cheng, Vahid Yaghoubi, Wim Van Paepegem, Mathias Kersemans
Summary: Performing non-destructive testing on metallic components with complex geometries, such as turbine blades, is challenging and requires powerful and robust inspection protocols. A MCS classification approach, coupled with optimization of feature selection and decision boundary, has been proposed in this study to discriminate healthy and unhealthy components. An experimental case study demonstrated the high classification accuracy and robustness of the developed MCS approach.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Liangliang Cheng, Vahid Yaghoubi, Wim Van Paepegem, Mathias Kersemans
APPLIED SCIENCES-BASEL
(2020)
Article
Engineering, Mechanical
T. D. Dinh, S. Han, V. Yaghoubi, H. Xiang, H. Erdelyi, T. Craeghs, J. Segers, W. Van Paepegem
Summary: The article presents a fatigue model that effectively captures the impact of high surface roughness on the fatigue crack initiation of additively manufactured Ti6Al4V alloys in the moderate cycle fatigue regime.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Optics
Saeid Hedayatrasa, Gaetan Poelman, Joost Segers, Wim Van Paepegem, Mathias Kersemans
Summary: Thermal Wave Radar (TWR) imaging utilizes pulse compression to enhance probing depth and resolution in infrared thermographic testing. The novel frequency-phase modulated (FPM) waveform introduced in this paper outperforms existing waveforms in defect detectability and contrast-to-noise ratio, particularly for deeper defects, when inspecting glass and carbon fiber reinforced polymer composites.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Florian Cougnon, Mathias Kersemans, Wim Van Paepegem, Diederik Depla
Summary: Magnetron sputter deposition allows for thin film deposition on heat sensitive materials like fiber-reinforced polymers, with temperature increase kept below 25 degrees C for film thicknesses up to 600 nm. Thicker metal films embedded in composites can negatively affect mechanical integrity, and introducing uncured composites into the vacuum chamber can impact base pressure and film properties. Despite these challenges, the potential to use embedded thin films in various applications is demonstrated.
Article
Polymer Science
Pei Hao, Siebe W. F. Spronk, Ruben D. B. Sevenois, Wim van Paepegem, Francisco A. Gilabert
Summary: The nonlinear behaviour of FRPC in transverse loading is mainly induced by the constituent polymer matrix, which is rate- and temperature-dependent. This paper presents a test setup to provide robust stress-strain measurements for FRPC at high strain rates. The micro- and macroscopic thermomechanical response of CF/PR520 and CF/PEEK systems are analyzed, showing excessive strain localization and discussing the differences between thermoplastic and thermoset matrices.
Article
Polymer Science
Olivier Verschatse, Lode Daelemans, Wim Van Paepegem, Karen De Clerck