Results 41 to 50 of about 488 (175)

Calculation method for internal force and deformation of the prestressed I-beam on the elastic foundation

Frontiers in Earth Science, 2023
The elastic foundation beam theory has been widely used in civil engineering, including railway, tunnel, and building foundations. With the development of fabricated structures, more elastic foundation beams need to be prestressed.
Yangsheng Ye, Shaowei Wei, Shaowei Wei, Degou Cai, Jianmin Yang, Jianmin Yang, Peiyong Wei, Peiyong Wei, Cuihong Yue, Cuihong Yue, Shangrui Wu, Shangrui Wu   +11 more
doaj   +1 more source

Negative Stiffness Induced and Controlled by Constriction

physica status solidi (b), Volume 263, Issue 5, May 2026.
Structures with negative stiffness can be stabilized by constriction of external displacement. Furthermore, constriction can make a conventional positive stiffness material exhibit negative stiffness, either bidirectional or unidirectional (shown in the figure).
Elena Pasternak, Arcady V. Dyskin
wiley   +1 more source

An efficient semi‐analytical approach for the free vibration behavior of DWCNTs on elastic foundations based on nonlocal elasticity theory

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 3, March 2026.
Abstract In this study, a comprehensive analytical framework is developed to investigate the free vibration behavior of double‐walled carbon nanotubes (DWCNTs) resting on an elastic foundation, based on Eringen's nonlocal elasticity theory. The DWCNTs are modeled as two coupled Euler–Bernoulli (EB) beams, explicitly incorporating intertube van der ...
Ayşegül Tepe
wiley   +1 more source

Advances in Delamination Analysis and Damage Prediction: A Comprehensive Review on Polymer Composite Materials

Engineering Reports, Volume 8, Issue 2, February 2026.
This comprehensive study advances delamination analysis in composites through innovative computational methods, experimental validation techniques, and predictive algorithms, collectively enhancing damage progression prediction and structural health monitoring for improved integrity in high‐performance applications.
Dhivya Elumalai, Ananda Babu Arumugam, Yitbarek Gashaw Tadesse, Mesfin Kebede Kassa, Mohit Gupta   +4 more
wiley   +1 more source

MODES OF VIBRATION OF THE BEAMS UNDER THE INFLUENCE OF DISCONTINUITY IN FOUNDATION

Facta Universitatis. Series: Mechanical Engineering, 2014
Vibrations of the Timoshenko beams resting on the Winkler and Pasternak elastic foundation with discontinuity are investigated in this paper. A p-version finite element method that accounts for shear deformation is used.
Vladimir Stojanović, Pedro Ribeiro
doaj  

Study on Impact of Foundation Pit Construction on Surrounding Tunnels Considering Its Shear Effect

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
It is necessary to assess the pit construction impact on surrounding tunnels. The improved Hermite interpolation difference scheme is used to derive the solution formula. Then, the rationality and applicability of the Timoshenko deep beam model considering the shield tunnel shear effect are verified by analyzing and comparing with the measured data of ...
Honghua Zhao, Yutao Song, Nicola Buratti
wiley   +1 more source

Analytical Study on Longitudinal Dynamic Response of Long Tunnels Crossing Soil–Rock Stratum Under Rayleigh Wave Incidence

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
In this study, the analytical solution of longitudinal dynamics of infinite length tunnel crossing the soil–rock stratum subjected to Rayleigh wave is studied. By introducing the transition zone, a more realistic simulation of the actual mechanical state at the interface between the soil and the rock mass can be achieved.
Chen Cao, Xue-Qian Fang, Chang-Song Zhu, Bang Yeon Lee   +3 more
wiley   +1 more source

Analytical approach to investigation of free vibration of thin rectangular plate immersed in fluid, resting on Winkler and Pasternak foundations

Karbala International Journal of Modern Science, 2019
Dynamic behaviour of free vibration of rectangular plate is investigated. This study considered an analytical approach to investigation of free vibration of thin rectangular plate immersed in fluid, resting on Winkler and Pasternak foundations.The ...
Obanishola Sadiq, Gbeminiyi Sobamowo, Saheed Salawu   +2 more
doaj   +1 more source

Conceptual Methods to Forecast Tunnel Distortion Resulting From the Overlying Foundation Pit Excavation and Dewatering

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
The excavation process of deep and large foundation pits in cities will inevitably be treated with dewatering, and the excavation and dewatering of foundation pits will cause changes in the free displacement field of surrounding soil, which will further cause uneven deformation of existing tunnels.
Chengbin Liao, Guohui Feng, Feng Li, Kiafang Yang, Gang Wei, Min Hu, Zhiyong Song, Xiaozhen Fan, Zhaorui Lin, Jianyong Han   +9 more
wiley   +1 more source

Torsional Vibration of a Nanobeam Under Magnetic Load and Surrounded With Torsional Spring, Based on the Modified Couple Stress Theory Using Power Series Method

Advances in Mathematical Physics, Volume 2026, Issue 1, 2026.
This paper is concerned with the torsional vibration of the nanobeam under a longitudinal magnetic field and surrounded by a torsional spring. The small size effect is taken into account by considering the modified couple stress theory of elasticity for continuum mechanics, and the power series method (PSM) is utilized in order to compute the ...
Mouafo Teifouet Armand Robinson, Sarp Adali, Ivan Giorgio   +2 more
wiley   +1 more source