Article
Materials Science, Multidisciplinary
J. Noder, J. Dykeman, C. Butcher
Summary: The study evaluated four detection methods in the V-bend test for seven automotive steels with different strength levels, identifying the appropriate failure threshold through visual inspection.
EXPERIMENTAL MECHANICS
(2021)
Article
Engineering, Civil
X. M. Zhang, Y. C. Wang, M. N. Su
Summary: This paper presents the development of a new type of sandwich structure, Beetle elytron plate (BEP), inspired by the internal architecture of beetle elytra. Experimental results confirm the improved mechanical resistance of BEP compared to conventional honeycomb sandwich plates. The paper also proposes calculation methods for design based on the experimental and numerical results.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Multidisciplinary
Zhao Yin, Hangduo Gao, Gao Lin
Summary: This paper presents a new finite element method for analyzing the bending and free vibration problems of functionally graded material porous plates. By utilizing even and uneven porosity distributions, as well as converting from 2D to 3D geometry, the computational efficiency and accuracy can be significantly improved.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2021)
Article
Chemistry, Physical
Hsuan-Chih Liu, Yu-Hui Zeng, Chun-Li Lin
Summary: The study found that HDDP exhibited significantly higher static bending proof load, strength, and stiffness compared to DDP. However, in biomechanical fatigue tests under physiological loads, there was no significant difference in stability between the novel HDDP and commercial DDP systems on an artificial radius fractured system.
Article
Chemistry, Analytical
Chung-Huang Yeh, Jwu-E Chen
Summary: In this research, the DITM model is used to evaluate the test yield and test quality of integrated circuits. The study proposes a repeated testing method to improve the test results. The findings show that repeated testing can increase the test yield and shipment of semiconductor products, obtaining chips with near-zero defects.
Article
Engineering, Multidisciplinary
A. S. Yurkov, P. V. Yudin
Summary: This article investigates the flexoelectric effect in nano-scale materials and proposes an approximate mathematical model. Nonclassical higher order terms are treated using variational calculus. Analytical solutions are obtained for a circular plate with round electrodes, and the influence of boundary conditions on deformation is studied.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2023)
Article
Mechanics
P. V. Jeyakarthikeyan, Siddarth Subramaniam, Vikalp Charuasia, S. Vengatesan, Tinh Quoc Bui
Summary: In this work, new quadrature schemes based on Richardson extrapolation (RE) and centroid or midpoint rule are applied to the quadrilateral Mindlin plate element for static and free vibration analysis. Two approximations are considered in generating element matrices, and the schemes show improved accuracy, convergence rate, and ability to handle irregular geometries and high frequencies over irregular meshes.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
C. V. Nielsen, B. N. Legarth, C. F. Niordson
Summary: This article revisits the existing analytical solutions for determining the average coefficient of friction in bending under tension tests. New analytical solutions based on the assumption of concentrated forces are presented and proven to be statically admissible, in contrast to the assumption of uniform pressure. Existing literature supports the presence of localized peaks in pressure distribution, as confirmed by numerical simulations and experimental results. Due to the non-uniform pressure distribution, bending under tension tests are not suitable for determining the coefficient of friction, but rather for qualitatively comparing tribo-systems.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Mechanics
Tommaso D'Antino, Marco A. Pisani
Summary: Fiber-reinforced polymer (FRP) composite bars are used to reinforce concrete members due to their high strength-to-weight ratio, corrosion resistance, and non-conductivity. This paper proposes a 3-point bending test as an alternative to the direct tensile test for obtaining the tensile strength and elastic modulus of FRP bars. An analytical model considering bar shear deformation and large displacements is used to describe the bending behavior of the specimens. Bending tests of GFRP bars with different resin types and diameters are presented to validate the proposed test method.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Wenming Wang, Yahui Gao, Zhen Wang, Lijuan Zhang, Zhonghai An, Sicheng Shao
Summary: This study proposes the use of post-pouring belt U-shaped steel connection scheme on plate foundation, and compares it with other schemes in terms of processing, transporting, on-site constructing and performance. It is found that the post-pouring belt U-shaped steel connection scheme has the advantage of simple construction, higher bearing capacity, and stability, thus it is recommended for use.
Article
Materials Science, Composites
Shuhua Zhu, Yuequan Wang, Long Zhou, Wentao Yi, Li Hu, Jian Liu, Xinran Kang, Hongshuang Li
Summary: A multi-functional composite sandwich panel was developed with a hybrid facesheet consisting of a quartz fiber reinforced plastic (QFRP) laminate and two copper layers, while the other facesheet was made of QFRP laminate. The effects of the hybrid facesheet on the mechanical characterizations of the sandwich panel were investigated through four mechanical performance tests. The experimental results showed that the sandwich panel with copper layers had lower mechanical performances compared to the sandwich panel without copper layers, with decreases in flatwise tensile strength, edgewise compressive strength, shear strength from three-point bending test, and shear strength from tensile plate shear test.
POLYMER COMPOSITES
(2023)
Article
Engineering, Multidisciplinary
Nikhil Garg, Matthew J. Donough, Chongmin Song, Andrew W. Phillips, B. Gangadhara Prusty
Summary: In this study, the scaled boundary finite element method (SBFEM) is utilized to model weakly bonded thick laminated composite plates under bi-axial bending. A three-dimensional modelling technique is employed to accurately model the thick laminated plates. Weakly bonded interfaces are simulated using spring layer models with zero-thickness interface elements. The interface elements are designed to capture the slippage between the layers, behaving in a linearly elastic manner. The SBFEM approach allows for fewer discretizations along the thickness direction without compromising accuracy, and small interface element size without altering the bulk element size.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2023)
Article
Computer Science, Interdisciplinary Applications
A. A. M. da Silva, A. A. Novotny
Summary: In this work, a novel approach for solving a damage identification problem in plate structures is proposed, based on the topological derivative method. The method minimizes a shape function to determine the geometrical support of the unknown damage distribution, and represents the damage size and shape by minimizing the error between measured data and computed data.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2022)
Article
Multidisciplinary Sciences
Gianluca Amadei, Charlotte E. Handford, Chengxiang Qiu, Joachim De Jonghe, Hannah Greenfeld, Martin Tran, Beth K. Martin, Dong-Yuan Chen, Alejandro Aguilera-Castrejon, Jacob H. Hanna, Michael B. Elowitz, Florian Hollfelder, Jay Shendure, David M. Glover, Magdalena Zernicka-Goetz
Summary: Researchers have successfully assembled stem cell-derived embryo models composed of embryonic stem cells, trophoblast stem cells, and extraembryonic endoderm stem cells, and demonstrated their ability to recapitulate the development of mouse embryos. This study provides a powerful tool for studying the roles of different cell lineages and genes in development.
Article
Engineering, Civil
Laura Da Silva Seco, Mael Couchaux, Mohammed Hjiaj, Luis Costa Neves
Summary: This paper investigates the behavior of exposed column base-plates with four outer anchor bolts subjected to monotonic loading through six full-scale tests. The influence of base-plate thickness and bending moment axis orientation on connection response is thoroughly studied and an analytical model for bending resistance calculation is proposed. The experimental data and numerical model findings can provide a deeper understanding of the working mechanism of the connections.
ENGINEERING STRUCTURES
(2021)
