Simulation of Shock Response in a Lab-Scale Space Frame Structure Using Finite Element Analysis

2011 ◽  
Author(s):  
Jagadeep Thota ◽  
Mohamed B. Trabia ◽  
Brendan J. O’Toole
Keyword(s):  
Finite Element ◽  
Impact Loading ◽  
Scale Space ◽  
Frame Structure ◽  
Frame Structures ◽  
Fe Model ◽  
Space Frame ◽  
Element Analysis ◽  
Acceleration Signals ◽  
Space Frame Structure

Space frames are usually used to enhance the structural strength of a vehicle while reducing its overall weight. Impact loading is a critical factor when assessing the functionality of these frames. In order to properly design the space frame structure, it is important to predict the shocks moving through the members of the space frame. While performance of space frame structures under static loads in well-understood, research on space frame structures subjected to impact loading is minimal. In this research, a lab-scale space frame structure, comprising of hollow square members that are connected together through bolted joints which allow for quick assembly/disassembly of a particular section, is manufactured. Non-destructive impact tests are carried out on this space frame structure and the resulting acceleration signals at various locations are recorded. A finite element (FE) model of the lab-scale structure is created and simulated for the experimental impact loads. Acceleration signals from the FE model are compared with the experimental data. The natural frequencies of the structure are also compared with the results of the FE model. The results show a good match between the model and the experimental setup.

Comparative Study on the Effects of Infill Walls on Reinforced Concrete Frame Structures

2015 ◽  
Vol 730 ◽  
pp. 81-84
Author(s):  
Huan Jin
Keyword(s):  
Finite Element ◽  
Failure Modes ◽  
Shear Failure ◽  
Frame Structure ◽  
Frame Structures ◽  
Reinforced Concrete Frame ◽  
Element Analysis ◽  
Infill Walls ◽  
Finite Element Program ◽  
Static Test

Based on the quasi-static test of single-layer, two-bay RC frame model, using DIANA finite element program, a finite element Macro-model of masonry-infilled frame structure was established, and nonlinear finite element analysis of frame structures filled with different masonry materials was conducted. As a result of the existence of infill walls, the failure modes of frame structure have been changed, and which is easy to cause shear failure at the top of frame columns. If masonry materials of infill walls are different, the effects of infill panels on frame structures will be different. Comparative analysis shows that the influence of clay bricks is the largest, followed by autoclaved bricks’ influence, while aerated concrete blocks’ influence is the smallest. Therefore, to avoid the associated failure mechanism caused by infill walls, lightweight masonry materials are suggested to be used in actual engineering.

Research on Space Frame Structure in Regard of Member Initial Stress

2013 ◽  
Vol 351-352 ◽  
pp. 998-1003
Author(s):  
Mao Qing Liu ◽  
Jun Xu ◽  
Xin Xi Du
Keyword(s):  
Initial Stress ◽  
Cross Section ◽  
Computational Models ◽  
Initial Imperfection ◽  
Frame Structure ◽  
Economic Factors ◽  
Space Frame ◽  
Element Analysis ◽  
Stress Ratios ◽  
Space Frame Structure

To reveal the harm of member initial stress on space frame structure, several models which are different in initial imperfection methods, material computational models and upper optimized stress ratios are employed to do nonlinear finited element analysis. It finds that the initial stress method and Marshall model are more accurate to simulate. When design the space frame structure, it must be avoided to optimize the cross section excessively in pursuit of economic factors.

Strength and Stability of Arched Frame Structures Made of Brittle Material

2015 ◽  
Vol 725-726 ◽  
pp. 758-767
Author(s):  
Askar Aznabaev ◽  
Semen Bondarenko ◽  
Kirill Gureev ◽  
Daria Likhaia ◽  
Irina Loginova ◽  
...  
Keyword(s):  
Finite Element ◽  
Brittle Material ◽  
Base Material ◽  
Internal Force ◽  
Structure Design ◽  
Frame Structure ◽  
Frame Structures ◽  
Element Analysis ◽  
Comparison Of The Results ◽  
In Virtue Of

The paper describes the creation of the arched frame structures made of brittle material. Pasta were chosen as the base material. Their basic geometrical and mechanical characteristics were evaluated. Finite element analysis of the pasta frame structure was made in SCAD and ANSYS. The internal force factors arose in the structure were compared. Its actual carrying capacity was determined in virtue of the structural solidity and material`s experimental evidence. Also the features of optimized structure design were found, the assembly process was described, the test results of the construction were presented. The comparison of the results of finite element modeling and actual laboratory tests was done.

The Effect of Interaction on the Dynamic Characteristics of Mega Frame Structure

2011 ◽  
Vol 243-249 ◽  
pp. 1134-1137
Author(s):  
Wen Guo ◽  
Hua Chuan Yao
Keyword(s):  
Finite Element ◽  
Reference Value ◽  
Element Model ◽  
Frame Structure ◽  
Frame Structures ◽  
Element Analysis ◽  
Foundation Soil ◽  
Structural Style ◽  
The Finite Element Analysis ◽  
The Finite Element Model

In the paper, the sandy pebble soil which was most massively distributed in Sichuan was used as foundation. The finite element model of mega frame structure including the superstructure, raft foundation and the sandy pebble groundwork was built by applying the finite element analysis software ANSYS. The response of the mega frame structures under dynamic load was analyzed to study the mechanical properties, deformational properties and the interaction between mega frame structures and the sandy pebble soil. At last, in the same structural style and same foundation soil, the dynamic behaviors of such structure which take no account of the interaction between mega frame structures and the sandy pebble soil was compared with structure which took account of the interaction. The research in the paper could provide certain reference value for the future engineering.

scholarly journals A Complex shaped crucible frame structure modelling and finite element analysis for stress and deformation

2018 ◽  
Vol 7 (2.8) ◽  
pp. 626 ◽  
Author(s):  
N V. Dhandapani ◽  
R Manimaran ◽  
V C. Uvaraja ◽  
R Sridhararan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Frame Structure ◽  
Frame Structures ◽  
System Support ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Actual Use ◽  
Stress And Deformation ◽  
Physical Construction

Crucible frame structures are otherwise called as complex frame structures and its study is needed for further improvement in the emerging technology. The frame structure are frequently used an operational system support of  other mechanisms of a physical construction and/or steel frame that limits the assembly's extent in this study crucible frame structures are analysed using Finite element analysis and the results are expected in terms of safety for actual use. Based on ANSYS Software, the crucible structure can be meshed (discretized into several parts are called elements). At last, we can apply the boundary conditions and calculate its maximum deformation by applying various loads.

Research on Judging Key Components for Collapse of Space Structures

2012 ◽  
Vol 166-169 ◽  
pp. 1459-1464
Author(s):  
Tie Cheng Wang ◽  
Jian Kang ◽  
Zhi Ping Li ◽  
Hai Long Zhao
Keyword(s):  
Energy Method ◽  
Progressive Collapse ◽  
Steel Frame ◽  
Frame Structure ◽  
Space Structures ◽  
Frame Structures ◽  
Space Frame ◽  
Importance Factor ◽  
Steel Frame Structures ◽  
Space Frame Structure

The key components of space steel frame structures which included 1-5 story respectively were judged by using energy method. It was shown in the results that besides interior and corner columns, adjacent side columns in low buildings should be paid attention to in analyzing progressive collapse. The approach of utilizing story as weight to modify importance factor of space frame structure was also proposed, and the modified importance factor complied better with collapse resistant characteristics of real buildings.

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