Results 61 to 70 of about 1,281 (165)

Induced Torque Effect on Helical Buckling of Coiled Tubing

Shiyou jixie, 2018
When subjected to the top end load, the coiled tubing will buckle and will generate induced torque during the subsequent coiled tubing deployment. The induced torque may affect the shape of the coiled tubing and influence the drilling and completion ...
Qin Hua, An Chen, Guan Feng, Huang Yixuan, Liu Shaohu, Duan Menglan   +5 more
doaj  

Study on helical post-buckling of motional coiled tubing in horizontal wells

Journal of Petroleum Exploration and Production Technology
Coiled tubing is widely used in oil and gas operations. However, the long coiled tubing may undergo sinusoidal or helical buckling deformations, and even lock-up, leading to property damage and serious accidents.
Zhuang Li, Liangyu Chen, Fei Yuan, Lei Zhao   +3 more
doaj   +1 more source

Buckling loads of columns of regular polygon cross-section with constant volume and clamped ends

Electronic Journal of Structural Engineering, 2002
A numerical method is developed for calculating the buckling loads of tapered columns of regular polygon cross-section with constant volume and both clamped ends. The linear, parabolic and sinusoidal tapers are considered in numerical examples. From the
Byoung Koo Lee, Sang Jin Oh, Guangfan Li
doaj  

Dynamic buckling mechanism of pillar rockbursts induced by stress waves

Journal of Rock Mechanics and Geotechnical Engineering, 2019
Rockbursts are sudden and violent rock failures that can lead to huge production and equipment losses, injury or death of mining workers. Buckling has been regarded as one of the key mechanisms of rockbursts, which are often induced by dynamic loads from
J. Deng, N.S. Kanwar, M.D. Pandey, W.-C. Xie   +3 more
doaj   +1 more source

New Insight into the Phenomenon of Buckling in Compressed Beams with Firm Support

Buildings
This work presents a new insight into the buckling phenomenon to approach the calculation of the compressed bar with the following firm supports: bi-pinned, bi-fixed, and fixed-pinned.
Mikel Goñi, Faustino N. Gimena, José-Vicente Valdenebro   +2 more
doaj   +1 more source

Experimental assessment of stiffening geometries for thin-walled structural steel plates made by wire arc additive manufacturing

Results in Engineering
An innovative strategy of imposing geometric sinusoidal waves has been proven effective in enhancing the local buckling resistance of steel plates made by selective laser melting (SLM).
Jingbang Pan, Jie Wang, Mark Evernden, Sian I. Evans, Fangda Xu   +4 more
doaj   +1 more source

Buckling of orthotropic plates with bimoments

Инженерно-строительный журнал, 2015
The paper is dedicated to improvement of plate theory in order to take into account forces, moments and bimoments, generated by nonlinear law of displacement distribution in plate cross-sections.
M.K. Usarov
doaj   +1 more source

Buckling analysis of thick plates using refined trigonometric shear deformation theory

Journal of Materials and Engineering Structures, 2015
In this paper, a refined trigonometric shear deformation plate theory is applied for the buckling analysis of thick isotropic square and rectangular plates.
Sachin Madhavrao Gunjal, Rajesh Baburao Hajare, Atteshamuddin Shamshuddin Sayyad, Manas Dipak Ghodle   +3 more
doaj  

Bending, Vibration and Buckling of Laminated Composite Plates Using a Simple Four Variable Plate Theory

Latin American Journal of Solids and Structures
In the present study, a simple trigonometric shear deformation theory is applied for the bending, buckling and free vibration of cross-ply laminated composite plates.
Atteshamuddin S. Sayyad, Bharti M. Shinde, Yuwaraj M. Ghugal   +2 more
doaj   +1 more source

Seismic Response of an Irregular Pile-Supported Building on Liquefiable Sand: 2D Effective-Stress Analysis and Failure-Mode Assessment

Buildings
The soil–pile–structure interaction (SPSI) has an important effect on the design of earthquake-resistant structures and becomes more complicated for irregular structures constructed on liquefiable soils.
Mohamed Hassan Mohamed Shawesh, Mohsen Seyedi, Sepehr Saedi   +2 more
doaj   +1 more source