Do Van Thom^1,*, Pham Van Hoan², Nguyen Huu Phan²

CMES-Computer Modeling in Engineering & Sciences, Vol.145, No.2, pp. 1711-1734, 2025, DOI:10.32604/cmes.2025.071187 - 26 November 2025

Abstract This research utilizes analytical solutions to investigate the issue of nonlinear static bending in nanobeams affected by the flexomagnetic effect. The nanobeams are exposed to mechanical loads and put in a temperature environment. The equilibrium equation of the beam is formulated based on the newly developed higher-order shear deformation theory. The flexomagnetic effect is explained by the presence of the strain gradient component, which also takes into consideration the impact of small-size effects. This study has used a flexible transformation to derive the equilibrium equation for a single variable, which significantly simplifies the process of More >

Jiaqing Jiang^*, Marco Amabili

The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.2, pp. 1-1, 2025, DOI:10.32604/icces.2025.012283

Abstract This paper presents a novel mixed finite element method for the free vibration analysis of composite periodic beams. The governing state-space equations are derived based on the Hamilton's principle, treating both displacements and stresses as fundamental variables. This method uses transfer relations in the transverse direction and finite element discretization in the longitudinal direction of the beam, forming a semi-analytical computational framework. Therefore, it is able to handle general composite beam structures containing both transversely layered and axially jointed materials.
The proposed mixed finite element method ensures continuity of both displacements and stresses across material interfaces,… More >

Ksenia Saerova^*, Ruslan Safin

Journal of Renewable Materials, Vol.13, No.9, pp. 1829-1840, 2025, DOI:10.32604/jrm.2025.02025-0076 - 22 September 2025

Abstract This article presents research focused on developing and scientifically substantiating a technology for producing environmentally friendly glued structures from wood treated through a two-stage process. The methodology involves preliminary thermal modification followed by high-frequency low-temperature plasma treatment. Thermal modification enhances performance characteristics such as resistance to rot, lowers hygroscopicity, and increases dimensional stability. However, it can diminish the adhesive properties of wood, complicating the bonding process. To address this challenge, the study introduces high-frequency low-temperature plasma treatment, which activates the wood surface, improving wettability and adhesion while minimizing glue consumption. Experimental results indicate that plasma More >

Phuong Phan-Vu^*, Thanh Q. Nguyen, Phuoc Trong Nguyen

Structural Durability & Health Monitoring, Vol.19, No.5, pp. 1111-1125, 2025, DOI:10.32604/sdhm.2025.070179 - 05 September 2025

Abstract As prestressed concrete (PC) structures age, long-term effects, e.g., creep, shrinkage, and prestress losses, compromise their structural performance. Strengthening these aged PC beams has become a crucial matter. One effective solution is to use externally bonded fiber-reinforced polymer (FRP) sheets; however, limited research has been done on aged PC beams using the FRP, especially for beams with unbonded prestressing strands (UPC beams). Therefore, this research investigates the flexural strengthening efficacy of external FRP sheets on aged UPC beams with unbonded tendons. Aging minimally affected the failure modes of UPC beams, with nonstrengthened beams showing flexural… More >

Guangqing Xiao¹, Xilong Chen¹, Lihai Xu¹, Feilong Kuang², Shaohua He^2,*

Structural Durability & Health Monitoring, Vol.19, No.5, pp. 1167-1181, 2025, DOI:10.32604/sdhm.2025.064450 - 05 September 2025

Abstract This study investigates the flexural performance of ultra-high performance concrete (UHPC) in reinforced concrete T-beams, focusing on the effects of interfacial treatments. Three concrete T-beam specimens were fabricated and tested: a control beam (RC-T), a UHPC-reinforced beam with a chiseled interface (UN-C-50F), and a UHPC-reinforced beam featuring both a chiseled interface and anchored steel rebars (UN-CS-50F). The test results indicated that both chiseling and the incorporation of anchored rebars effectively created a synergistic combination between the concrete T-beam and the UHPC reinforcement layer, with the UN-CS-50F exhibiting the highest flexural resistance. The cracking load and… More >

Ömer Ekim Genel^*, Hilal Koç, Ekrem Tüfekci

CMC-Computers, Materials & Continua, Vol.82, No.2, pp. 2043-2059, 2025, DOI:10.32604/cmc.2025.060111 - 17 February 2025

Abstract Due to their superior properties, the interest in nanostructures is increasing today in engineering. This study presents a new two-noded curved finite element for analyzing the in-plane static behaviors of curved nanobeams. Opposite to traditional curved finite elements developed by using approximate interpolation functions, the proposed curved finite element is developed by using exact analytical solutions. Although this approach was first introduced for analyzing the mechanical behaviors of macro-scale curved beams by adopting the local theory of elasticity, the exact analytical expressions used in this study were obtained from the solutions of governing equations that… More >

Mohammad Javad Bayat¹, Amin Kalhori², Kamran Asemi^1,*, Masoud Babaei³

CMES-Computer Modeling in Engineering & Sciences, Vol.142, No.2, pp. 1351-1458, 2025, DOI:10.32604/cmes.2025.060222 - 27 January 2025

Abstract Since the initial observation of carbon nanotubes (CNTs) and graphene platelets (GPLs) in the 1990 and 2000s, the demand for high-performance structural applications and multifunctional materials has driven significant interest in composite structures reinforced with GPLs and CNTs. Incorporating these nanofillers into matrix materials markedly enhances the mechanical properties of the structures. To further improve efficiency and functionality, functionally graded (FG) distributions of CNTs and GPLs have been proposed. This study presents an extensive review of computational approaches developed to predict the global behavior of composite structural components enhanced with CNT and GPL nanofillers. The… More >

Yushan Ye¹, Tao Gao¹, Liankun Wang², Junjie Ma², Yingchun Cai², Heng Liu^2,*, Xiaoge Liu²

Structural Durability & Health Monitoring, Vol.19, No.1, pp. 145-166, 2025, DOI:10.32604/sdhm.2024.053756 - 15 November 2024

Abstract To investigate the evolution of load-bearing characteristics of pre-stressed beams throughout their service life and to provide a basis for accurately assessing the actual working state of damaged pre-stressed concrete T-beams, destructive tests were conducted on full-scale pre-stressed concrete beams. Based on the measurement and analysis of beam deflection, strain, and crack development under various loading levels during the research tests, combined with the verification coefficient indicators specified in the codes, the verification coefficients of bridges at different stages of damage can be examined. The results indicate that the T-beams experience complete, incomplete linear, and… More >

Xiong Zhang^1,2,*, Jinkang Xiong¹, Xinrong Fu¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.29, No.2, pp. 1-1, 2024, DOI:10.32604/icces.2024.011760

Abstract Thin-walled beams are widely applied as energy-absorbing components in industrial products to meet the requirements of passive safety. Researchers have tried various approaches to improve the energy absorption efficiency of them. Recently, adopting arched beams was proposed by researchers to improve the crashworthiness of beams under transverse loads. Arched beams can switch the transverse forces to axial forces and were reported to show very much better crashworthiness performances than straight beams.
Although adopting arched beams is an effective way to improve the performance of beams under transverse loads, the fabrication of arched beams is more… More >

Xinrong Fu¹, Xiong Zhang^1,2,*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.29, No.2, pp. 1-1, 2024, DOI:10.32604/icces.2024.011748

Abstract Thin-walled beams with various cross-sectional shapes were widely applied in automobiles or other large-volume industrial products. Researchers have tried different methods to improve their crashworthiness performances and predict the collapse responses of the beams under various loads. Multi-cell thin-walled beams were reported to show excellent energy absorption efficiency and crashworthiness performances under many load conditions. Up to now, theoretical analyses on the axial crushing of multi-cell beams have attracted extensive attentions, and significant progress has been made in predicting the energy absorption of multi-cell beams with various sections. However, the theoretical analysis on the bending… More >