Article
Nanoscience & Nanotechnology
Solomon Huluka, A. Abdul-Latif, R. Baleh, A. Larbi, I. Deiab, K. Khanafer
Summary: This experimental work investigated the effect of a biaxial combined compression-torsion loading complexity on the mechanical properties of two types of aluminum foams. The results showed that increasing foam density and loading complexity led to higher yield strength, energy absorption capacity, and micro-hardness. The highest foam strength was observed under the most complicated loading path for the densest foam, due to the variation in cell wall thickness. The SEM analysis revealed that the loading complexity had an impact on particle segregation and densification strain.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Mechanics
E. Kormanikova, K. Kotrasova
Summary: This article explores the method of using micro-macro modeling for seismic response calculation in a composite rectangular tank filled with liquid.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Manufacturing
Sufen Dong, Danna Wang, Ashraf Ashour, Baoguo Han, Jinping Ou
Summary: Nickel-plated carbon nanotubes (Ni-CNTs) with different aspect ratios significantly impact the mechanical properties of reactive powder concrete (RPC). Incorporating Ni-CNTs with aspect ratio of 1000 enhances compressive strength, while aspect ratio of 125 improves flexural strength, and aspect ratio of 1500 increases toughness through better dispersibility and pining effect of nickel coating.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Mechanical
Maysam B. Gorji, Jevan Furmanski, Dirk Mohr
Summary: The study discusses a micro-testing technique that can characterize local plasticity and fracture properties at the millimeter scale and compare the results of micro and standard macro experiments. Micro-testing provides a powerful means to characterize materials whose properties are homogeneous over a few hundred microns only.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Juxi Hu, Lei Wang, Xiaojun Wang
Summary: The main aim of this paper is to study and predict macro elastic mechanical parameters of fiber-reinforced composite laminates by combining micro-mechanical analysis models and the non-probabilistic set theory. The proposed quantification method considers the correlations between macro elastic properties and provides a clear analytical description for uncertainty quantification.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Multidisciplinary
Zhang Ying, Bai QingGuo, Yang WanFeng, Zhang ZhongHua
Summary: Nanoporous metals have garnered attention as a new class of materials, but macroscopic brittle fracture during tensile tests hinders their practical use. Developing low-cost, highly ductile nanoporous materials is crucial. This study demonstrates that designing a film-substrate structure enhances the mechanical properties of nanoporous metals.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Engineering, Mechanical
Mayank Chouksey, Shyam M. Keralavarma
Summary: Ductile failure under plane stress conditions was analyzed at the meso-scale using periodic unit cell model simulations. The predictions of different failure models were compared with the results of the simulations under both proportional and non-proportional loading conditions. The instability-based model showed good quantitative agreement with the simulations and could predict the characteristic shape of the failure locus, unlike the damage indicator models.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Materials Science, Characterization & Testing
Suleyman Deveci, Birkan Eryigit, Susanne Nestelberger
Summary: This research investigated the development of residual stresses in plastic pipes due to post-die cooling rate differences of the polymer melt using concentric and eccentric circular geometries. Heat transfer simulations were performed to analyze the effect of non-uniform wall thickness on temperature and residual stress profiles, and the study focused on extruded high-density polyethylene pipes. The research outcomes provide a better understanding of the melt solidification process and its impact on application properties.
Article
Mechanics
Qilin Jin
Summary: This study proposes an attractive plate model to analyze the MFC piezoelectric laminated plate. The improvement of precision of interlaminar shear stresses is achieved through the use of 3D elasticity equations and the Reissner mixed variational theorem. The study also investigates the effect of several significant parameters on the deformations and stresses of the MFC piezoelectric plates with reinforcements.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Composites
Saeed Reza Zahabi, Mohammad Sheikhzadeh, Fatemeh Shahramforouz, Frank Ko
Summary: The study investigated the mechanical properties of self-lubricating composites, showing that PTFE/epoxy matrix has poor adhesion. Composites with higher PTFE volume fraction displayed good energy absorption but lower shear strength. The higher modulus of carbon composites was a concern.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Engineering, Environmental
Linda A. Amaral-Zettler, Erik R. Zettler, Tracy J. Mincer, Michiel A. Klaassen, Scott M. Gallager
Summary: The formation of microbial biofilms is found to increase the density of plastic and cause sinking, with various fouling communities playing a significant role in the sinking of buoyant plastic debris in the ocean.
Article
Chemistry, Multidisciplinary
Simon Szabo, Marco Francesco Funari, Bora Pulatsu, Paulo B. Lourenco
Summary: This research compares the influence of texture on the lateral capacity of masonry walls using macro and micro limit analysis. The results show that the aspect ratios of the panels and blocks have the most significant effect on the results, while the bond types have no significant effect.
APPLIED SCIENCES-BASEL
(2022)
Article
Computer Science, Interdisciplinary Applications
M. N. Rao, R. Schmidt, K. -U. Schroeder
Summary: This paper investigates the static analysis of laminated composite plates and shells bonded with MFC actuators under thermo-electro-mechanical loads, utilizing geometrically nonlinear finite element methods with finite rotation theory. The numerical model is validated by comparing it with experimental results, highlighting the importance of the geometrically nonlinear model.
ENGINEERING WITH COMPUTERS
(2022)
Article
Engineering, Mechanical
Sami Ghazali, Mohammed Algarni, Yuanli Bai
Summary: The plastic and fracture behaviors of AISI 4340 steel under multiaxial stress loading conditions were studied experimentally and numerically. A new plasticity model considering Lode angle dependence was proposed, and the model was validated by the comparison between experimental data and finite element simulations.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2023)
Article
Mechanics
Xiaofei Chen, Haitao Liu, Ru Jiang, Huizhen Bai
Summary: In this study, a high glass transition temperature polyimide resin was used as a matrix to prepare a quartz fiber reinforced polyimide resin composite. The effects of thermal aging on the mechanical properties and interface evolution of the composite were investigated. The results showed that the mechanical properties of the composite were significantly affected by high temperature aging, with a decrease in interfacial shear strength and a subsequent reduction in flexural strength.
COMPOSITE STRUCTURES
(2022)
