Research on Deforming Law of Beam Structure

2011 ◽  
Vol 101-102 ◽  
pp. 1114-1118
Author(s):  
Feng Xu
Keyword(s):  
Concrete Beam ◽  
Plain Concrete ◽  
Bending Test ◽  
Damage Effect ◽  
Analysis Software ◽  
Beam Structure ◽  
Element Analysis ◽  
New Methods ◽  
Concrete Damage ◽  
Beam Bending

The equations of damage evolution of cross-section and the deflection deformation of concrete beam were established. Through the plain concrete beam bending test, the formula for calculating the deflection was verified. It is proved that the formula established in this paper is more accurate than the equation that doesn’t consider the damage effect. The concrete beam was modelled and analyzed by means of finite element analysis software, and comparison was carried out between the numerical simulation result and the experimental data. On the basis, new methods and ideas about concrete-damage were proposed.

Based on ABQUS of Concrete Structure Nonlinear Finite Element Analysis

2013 ◽  
Vol 756-759 ◽  
pp. 186-189
Author(s):  
Li Jian
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Nonlinear Finite Element ◽  
Analysis Software ◽  
Element Analysis ◽  
Beam Analysis ◽  
The Finite Element Analysis ◽  
Concrete Damage

Based on the finite element analysis software ABAQUS, the nonlinear analysis of a reinforced concrete beam was carried out In this simple beam analysis, the concrete damage plasticity model in ABAQUS has been introduced thoroughly. Finally, the results of the experimentation and the ABAQUS analysis were compared in a diagram, accordingly reasons of the result difference between the two methods were discussed about, which can be a useful reference for the further study of the finite element analysis on ABAQUS.

Nonlinear Analysis of Reinforced Concrete Beam by ANSYS

2013 ◽  
Vol 438-439 ◽  
pp. 663-666
Author(s):  
Xin Zhong Zhang ◽  
Lei Lei Liu ◽  
Ke Dong Tang
Keyword(s):  
Reinforced Concrete ◽  
Nonlinear Analysis ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Experimental Results ◽  
Analysis Software ◽  
Element Analysis ◽  
Ansys Analysis ◽  
The Finite Element Analysis ◽  
Calculation Results

This paper mainly uses ANSYS, the finite element analysis software, to make nonlinear analysis of reinforced concrete beam. The model simulating the test process was established, the calculation results of ANSYS are compared with the experimental results. The comparison shows that ANSYS analysis results are similar to experimental results, which indicates ANSYS analysis software can be used to simulate the mechanical property of reinforced concrete structures.

Damage Analysis of Naval Gun Guided Projectile to Typical Anti-Ship Missile in Proximity Mode

2013 ◽  
Vol 385-386 ◽  
pp. 109-112
Author(s):  
Cheng Cheng Wang ◽  
Xiao Fang Xie ◽  
Tao Sun ◽  
Yan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vulnerability Analysis ◽  
Damage Effect ◽  
Damage Analysis ◽  
Analysis Software ◽  
Element Analysis ◽  
Important Direction ◽  
Naval Gun

Naval gun guided projectile is an important direction of the development of naval ammunition, which can effectively enhance the capacity of firepower support and anti-missile. Penetration damage of naval gun guided projectile to typical anti-ship missile in proximity mode is researched in the paper. Damage of the two different damage elements (fragment and discrete rod) to warhead cabin of missile is simulated with ANSYS/LS-DYNA finite element analysis software and analyzed. Its useful to the study of the further model of vulnerability analysis of whole anti-ship missiles and offer theory reference to enhancing the damage effect of naval gun guided projectile.

Experiment and Numerical Simulation on Non-Magnetic Prestressed Beam

2017 ◽  
Vol 894 ◽  
pp. 1-9
Author(s):  
Shi Yong Jiang ◽  
Wei Fei ◽  
Wei Lai Yao ◽  
Xue Yang Li
Keyword(s):  
Numerical Simulation ◽  
Prestressed Concrete ◽  
Concrete Beam ◽  
Ultimate Load ◽  
Analysis Software ◽  
Pure Bending ◽  
Element Analysis ◽  
Prestressed Beam ◽  
Good Agreement ◽  
Section Form

In order to meet demanding of non-magnetic, changing the reinforcement ratio, the degree of prestress and cross section form, four partially prestressed concrete beam (3 T shape section, 1 rectangle section) were made with CFRP as longitudinal reinforcement and stirrup. The results show that: the pure bending sections of the test beams conform the plane-section assumption; the beams with bigger rate of reinforcement or with stronger prestress tends to appear more cracks with smaller spacing and width, also their cracking load were higher with relatively lesser deflection. The cracking load and ultimate load of T-shape beam are slightly larger than the rectangular beam’s, but their deflections are similar nearly. Based on experimental research, nonlinear finite element analysis software ANSYS was utilized to establish the model, the results of numerical simulation and experiments showed good agreement.

scholarly journals Concrete Beam Bending Test Monitorization Using a High Strain Fiber Optic Sensor

2012 ◽  
Vol 30 (8) ◽  
pp. 1085-1089 ◽  
Author(s):  
M. Bravo ◽  
J. Saenz ◽  
M. Bravo-Navas ◽  
M. Lopez-Amo
Keyword(s):  
Concrete Beam ◽  
Fiber Optic ◽  
High Strain ◽  
Fiber Optic Sensor ◽  
Bending Test ◽  
Optic Sensor ◽  
Beam Bending

Effect of substrate deformation on the microcantilever beam-bending test

2000 ◽  
Vol 15 (9) ◽  
pp. 1868-1871 ◽  
Author(s):  
Tong-Yi Zhang ◽  
Ming-Hao Zhao ◽  
Cai-Fu Qian
Keyword(s):  
Analytic Formula ◽  
Bending Test ◽  
Proportionality Factor ◽  
Third Order ◽  
Element Analysis ◽  
Order Polynomial ◽  
Beam Thickness ◽  
Beam Bending ◽  
Microcantilever Beam ◽  
Fixed Beam

With regard to substrate deformation, this work analyzed the microcantilever beam-bending test and provided a closed formula of deflection versus load. The substrate deformation was formulated using two coupled springs; the spring compliances were related to the elastic compliances of the substrate, the support angle between the substrate and the microcantilever beam, and the beam thickness. Finite element analysis was conducted to calculate the spring compliances and verify the analytic formula. The results showed that the proportionality factor of the load to the deflection was a third-order polynomial of the length from the loading point to the fixed beam end. Examples are also given to indicate the relative error of Young's modulus when evaluated with the beam-bending theory without considering the substrate deformation.

Effectiveness of Meso-Scale Approach in Modeling of Plain Concrete Beam

2018 ◽  
Vol 24 (8) ◽  
pp. 71
Author(s):  
Alaa H. Al-Zuhairi ◽  
Ali I. Taj
Keyword(s):  
Finite Element ◽  
Concrete Beam ◽  
Coarse Aggregate ◽  
Beam Theory ◽  
Plain Concrete ◽  
Experimental Models ◽  
Scale Model ◽  
Element Analysis ◽  
Flexural Testing ◽  
Meso Scale

The main aim of this research paper is investigating the effectiveness and validity of Meso-Scale Approach (MSA) as a modern technique for the modeling of plain concrete beams. Simply supported plain concrete beam was subjected to two-point loading to detect the response in flexural. Experimentally, a concrete mix was designed and prepared to produce three similar standard concrete prisms for flexural testing. The coarse aggregate used in this mix was crushed aggregate. Numerical Finite Element Analysis (FEA) was conducted on the same concrete beam using the meso-scale modeling. The numerical model was constructed to be a bi-phasic material consisting of cement mortar and coarse aggregate. The interface between the two consisting materials was assumed fully bonded interface. In the ABAQUS program, the Extended Finite Element Method (XFEM) was employed for the treatment of the discontinuity problems, which is accompanied by cracking during the fracture process of plain concrete. The behavior and response of the beam in both meso-scale numerical analysis and experimental test were found in a good agreement. Another check was added by comparing the results using thin-beam theory assuming the concrete as a homogenous linear-elastic material. The result of this comparison showed that the meso-scale model analysis lies between theoretical and experimental models.  

Finite Analysis on Performance of Joint between Gangue Concrete Filled Steel Tubular Column with through Rebar and Gangue Concrete Beam under the Monotonic Loading

2012 ◽  
Vol 204-208 ◽  
pp. 3724-3730
Author(s):  
Guo Chang Li ◽  
Chen Fang ◽  
Hong Ping Yu
Keyword(s):  
Finite Element Analysis ◽  
Concrete Beam ◽  
Geometrical Nonlinearity ◽  
Monotonic Loading ◽  
Displacement Curve ◽  
Failure Model ◽  
Analysis Model ◽  
Analysis Software ◽  
Element Analysis ◽  
Contact Nonlinearity

In order to study the performance of the joint between gangue concrete filled steel tubular column with through rebar and gangue concrete beam under the monotonic loading, element analysis model, which is taken into consideration the material nonlinearity, the geometrical nonlinearity and the contact nonlinearity, is established by finite element analysis software ABAQUS. The results show the force transferring mechanism, the stress distribution, the failure model and the load-displacement curve of the joint under the monotonic loading. It indicates in this paper that the joint between gangue concrete filled steel tubular column with through rebar and gangue concrete beam has such numerous advantages as high bearing capacity, large stiffness and good performance. Meanwhile, the paper provides the calculation evidences to analyze the composite construction of gangue concrete filled steel tubular column and the results can be used to make the analysis on the practical structures.

Applications of Acoustic Emission Technique Associated with the Fracture Process Zone in Concrete Beam – A Review

2012 ◽  
Vol 626 ◽  
pp. 147-151 ◽  
Author(s):  
Siti Ramziah Basri ◽  
Norazura Muhamad Bunnori ◽  
Sakhiah Abdul Kudus ◽  
Shahidan Shahiron ◽  
Mohd Nazli Md. Jamil ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Concrete Beam ◽  
Process Zone ◽  
Failure Mechanisms ◽  
Aggregate Size ◽  
Plain Concrete ◽  
Bending Test ◽  
Acoustic Emission Technique

This paper summarized the recent development within the application of acoustic emission technique in the formation of fracture process zone and the AE energy released during the fracture process in concrete beam specimens. AE technique is a non destructive technique which is a useful tool to study the energy released during the different failure mechanisms in different types of materials and fracture process is one of the failure mechanisms in concrete. Most of the researchers were applied three point bending test on plain concrete in order to determine the facture process zone of the concrete and some of them were used numerical modeling to verify their results. The results between AE data and experimental in different parameters such as specimens size and aggregate size are normally compared. As a conclusion, AE technique is a very useful tool to determine the fracture process zone in concrete.

Finite Element Analysis on the Concrete Damage of Cross-Formation Perforation upon ANSYS/LS-DYNA

2016 ◽  
Vol 723 ◽  
pp. 764-769 ◽  
Author(s):  
Tao Ma ◽  
Hai Yu ◽  
Zhao Zhou ◽  
Wei Yang ◽  
Zhao Zhang ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Unconfined Compressive Strength ◽  
Nonlinear Dynamic Analysis ◽  
High Strength ◽  
Analysis Software ◽  
Element Analysis ◽  
Concrete Damage ◽  
Cap Rock ◽  
Oil Formation ◽  
Tight Formation

Using classical explicit nonlinear dynamic analysis software of ANSYS/LS-DYNA, this paper analyzes the process of perforating jet penetrating on four types of concrete target with unconfined compressive strength of 30 MPa, 50 MPa, 30 MPa & 50 MPa and 50 MPa & 30 MPa. The result shows that penetration of shaped charge will decrease if cross-formation perforation occurs and in order to guarantee the penetration performance during perforating, perforating should be parallel to the direction of oil formation and be avoided from working on high-strength tight formation and up-and-down cap-rock.

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