Numerical Study of Non-Contact Piled Raft Interaction under Static Loads

Author(s):  
H. Rasouli ◽  
A. Taghavi Ghalesari ◽  
M. Modarresi ◽  
A. Hasanzadeh





2022 ◽  
Vol 8 (1) ◽  
pp. 1-23
Author(s):  
Mahdi J. Alanazi ◽  
Yang Qinghua ◽  
Khalil Al-Bukhaiti

The possibility of servicing lifelines such as highways, railways, pipelines, and tunnels is of great social importance. The characteristic that separates the buried pipeline from other structures is that its dimensions are very long compared to its other dimensions. Ground vibrations caused by earthquakes, construction activities, traffic, explosions, and machinery can damage these structures. Lifeline integrity can be compromised in two ways: (1) direct damage due to excessive dynamic loading of the lifeline, and (2) indirect damage due to soil failures such as liquefaction, slope instability, and differential settlements. 3D printing (also known as additive manufacturing) is an advanced manufacturing process that can automatically produce complex geometric shapes from a 3D computer-aided design model without tools, molds, or fixtures. This automated manufacturing process has been applied in diverse industries today because it can revolutionize the construction industry with expected benefits. This research study on the performance of buried pipelines under static loads to the structure's safety against the possible development of progressive failure. This research study includes a numerical study, where it was studied many parameters to value the performance of the pipeline. The parameters are (a) the material of the pipeline (steel, traditional concrete, and 3D concrete printed), (b) the thickness of the pipeline (20, 30, and 40 mm), and (c) soil type (moist sandy soil, saturated sandy soil, moist cohesive soil, and saturated cohesive soil). Different results were obtained depending on the type of soil where all pipelines materials' behavior was similar in the case of moist soil. Doi: 10.28991/CEJ-2022-08-01-01 Full Text: PDF



2020 ◽  
Vol 24 (4) ◽  
pp. 1095-1102 ◽  
Author(s):  
Walid El Kamash ◽  
Hany El Naggar ◽  
Marwa Nabil ◽  
Alaa Ata


2019 ◽  
Vol 14 (6) ◽  
pp. 665-672
Author(s):  
Majid Beygi ◽  
Amin Keshavarz ◽  
Mohsen Abbaspour ◽  
Ramin Vali


Author(s):  
Benjamin Daudonnet ◽  
Fre´de´ric Mercier ◽  
Krzysztof Woznica

Thin walled metal pressure vessels or pipes commonly used in industry can burst under certain circumstances: as a result, the pressure envelope may undergo large deformations, which may eventually lead to a rupture. The response of these vessels to static and quasi-static loads is relatively well-understood but their response to highly dynamic pressure loading conditions is not. This paper describes a numerical study of the response of circular metal plates to the dynamic loads produced by hydrogen-oxygen explosions. In this study, a range of dynamic responses and rupture criteria models are considered and compared with the results of experiments. The ability of MSC MARC software to model the rupture phase and, in some cases, the post-rupture phase (i.e., fragment production) is also discussed.



2016 ◽  
Vol 55 (1) ◽  
pp. 547-560 ◽  
Author(s):  
A.Z. Elwakil ◽  
W.R. Azzam
Keyword(s):  




Sign in / Sign up

Export Citation Format

Share Document