Numerical study for impact resistant design of full scale arch type reinforced concrete structures under falling weight impact test

2011 ◽  
Vol 18 (9) ◽  
pp. 1275-1283 ◽  
Author(s):  
Abdul Qadir Bhatti ◽  
Shameem Khatoon ◽  
Aamir Mehmood ◽  
Abid Dastgir ◽  
Norimitsu Kishi
Keyword(s):  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Impact Test ◽  
Design Procedure ◽  
Full Scale ◽  
Analysis Method ◽  
Rc Structures ◽  
Weight Impact ◽  
Current Impact ◽  
Falling Weight

In this paper, a falling-weight impact test using full scale arch type reinforced concrete (RC) structures was conducted to verify a proposed impact response analysis method. The applicability of the numerical analysis method was confirmed by comparison with the experimental results. The validity of the current impact resistant design procedure to the performance based design procedure was investigated using the proposed numerical analysis method. From this study, it is confirmed that by applying the current impact resistant design procedure, a performance based impact resistant design with a sufficient safety margin may be obtained for the full scale arch type RC structures.

Numerical Simulation of Impact Response Behavior of Rectangular Reinforced Concrete Slabs under Falling-Weight Impact Loading

2011 ◽  
Vol 82 ◽  
pp. 266-271 ◽  
Author(s):  
Norimitsu Kishi ◽  
Yusuke Kurihashi ◽  
Sara Ghadimi Khasraghy ◽  
Hiroshi Mikami
Keyword(s):  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Impact Loading ◽  
Dynamic Responses ◽  
Concrete Slabs ◽  
Analysis Method ◽  
Numerical Analysis Method ◽  
Reinforced Concrete Slabs ◽  
Weight Impact ◽  
Falling Weight

A numerical analysis method for rectangular reinforced concrete slabs under falling-weight impact loading is established. The proposed method using finite element analysis incor-porates a simple constitutive model for concrete elements. The applicability was investigatedcomparing the numerical results with the experimental data. Falling-weight impact tests wereconducted on reinforced concrete slabs with different supporting conditions. These were: a slabwith line supports on four sides; a slab with two line supports on two opposite sides (the othertwo sides were free); and a slab with one line and two corner-point supports. Following resultswere obtained from this study: (1) the time histories of dynamic responses are well predictedby using proposed numerical analysis method; (2) maximum reaction forces and the maximumdeflections in the slab center below the loading point, and characteristics of the damped freevibration after falling weight was rebounded, can be better predicted; and (3) major crackpatterns can be roughly predicted despite of support conditions.

Design on Falling Weight Impact Test Rig

2011 ◽  
Vol 148-149 ◽  
pp. 388-392
Author(s):  
Jie Du ◽  
Chun Ting Ma
Keyword(s):  
Impact Test ◽  
Particle Diameter ◽  
Test System ◽  
Computer Hardware ◽  
Sensor Data ◽  
Test Rig ◽  
High Shock ◽  
Data Acquisition Card ◽  
Weight Impact ◽  
Falling Weight

Based on Interaction energy of solid ball, the new particle damper is designed which can be used in a high temperature and high shock energy. To verify the design of the damper, a falling weight Impact test rig is designed, a sensor, data acquisition card and computer hardware constitutes a signal test system. Experimental results show that the particle diameter is the biggest impact for the role of the particle damper , the characteristics of the displacement curves are increased at first and then decreased, the opposite effect of the time. At the same time filled with particles and the degree of damping rod embedment also have an impact on energy consumption.

scholarly journals Damage Source Identification of Reinforced Concrete Structure Using Acoustic Emission Technique

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Alireza Panjsetooni ◽  
Norazura Muhamad Bunnori ◽  
Amir Hossein Vakili
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Nondestructive Evaluation ◽  
Analysis Method ◽  
Reinforced Concrete Structure ◽  
Acoustic Emission Technique ◽  
Rc Structures ◽  
Rc Frames ◽  
Damage Monitoring ◽  
Investigation Process

Acoustic emission (AE) technique is one of the nondestructive evaluation (NDE) techniques that have been considered as the prime candidate for structural health and damage monitoring in loaded structures. This technique was employed for investigation process of damage in reinforced concrete (RC) frame specimens. A number of reinforced concrete RC frames were tested under loading cycle and were simultaneously monitored using AE. The AE test data were analyzed using the AE source location analysis method. The results showed that AE technique is suitable to identify the sources location of damage in RC structures.

The falling weight impact test applied to some glass-fibre reinforced nylons

1986 ◽  
Vol 21 (9) ◽  
pp. 3153-3161 ◽  
Author(s):  
A. E. Johnson ◽  
D. R. Moore ◽  
R. S. Prediger ◽  
P. E. Reed ◽  
S. Turner
Keyword(s):  
Glass Fibre ◽  
Impact Test ◽  
Glass Fibre Reinforced ◽  
Weight Impact ◽  
Falling Weight

Falling Weight Impact Test for PC/ABS Blend

2004 ◽  
Vol 2004 (0) ◽  
pp. 53-54
Author(s):  
M. Nizar MACHMUD ◽  
Masaki OMIYA ◽  
Hirotsugu INOUE ◽  
Kikuo KISHIMOTO
Keyword(s):  
Impact Test ◽  
Weight Impact ◽  
Falling Weight

Numerical Simulations on Impact Resistant Behavior of Rahmen-Slab Type RC Structures

2011 ◽  
Vol 82 ◽  
pp. 583-588
Author(s):  
Hisashi Kon-No ◽  
Hiroaki Nishi ◽  
Satoru Yamaguchi ◽  
Toshikazu Sawamatsu ◽  
Norimitsu Kishi
Keyword(s):  
Shear Failure ◽  
Prediction Method ◽  
Time History ◽  
Basic Knowledge ◽  
Analysis Method ◽  
Repeated Impact ◽  
Rc Structures ◽  
Accumulated Damage ◽  
Falling Weight ◽  
The Impact

In this paper, in order to gain basic knowledge of the dynamic response charac-teristics of rockfall protection galleries, falling-weight impact tests of the small size frame-slabtype reinforced concrete (RC) structures were conducted and the impact-resistant behaviorwas investigated. Also, to establish the prediction method for accumulated damage and resid-ual load-carrying capacity of the structures under repeated impact loading, a three-dimensionalelasto-plastic FE analysis method was proposed. Its applicability is discussed by comparing withthe experimental results. The following results are obtained from this study: (1) under impactloading, the structures reach the ultimate state in the punching shear-failure mode; and (2)accumulated damage of the galleries can be rationally evaluated by using the time history ofdeflection and crack patterns obtained by applying the proposed numerical analysis method.

Improved falling weight impact test for poly(vinyl chloride) products

1981 ◽  
Vol 3 (4) ◽  
pp. 254-257 ◽  
Author(s):  
Elvira B. Rabinovitch ◽  
James W. Summers
Keyword(s):  
Vinyl Chloride ◽  
Impact Test ◽  
Poly Vinyl Chloride ◽  
Weight Impact ◽  
Falling Weight

scholarly journals On the Numerical Modelling of Bond for the Failure Analysis of Reinforced Concrete

2017 ◽  
Author(s):  
Peter Grassl ◽  
Morgan Johansson ◽  
Joosef Leppänen
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Impact Test ◽  
Nonlinear Finite Element ◽  
Structural Performance ◽  
Finite Element Analyses ◽  
Tension Stiffening ◽  
Bond Slip ◽  
Element Size ◽  
Weight Impact

The structural performance of reinforced concrete relies heavily on the bond between reinforcement and concrete. In nonlinear finite element analyses, bond is either modelled by merged, also called perfect bond, or coincident with slip, also called bond-slip, approaches. Here, the performance of these two approaches for the modelling of failure of reinforced concrete was investigated using a damage-plasticity constitutive model in LS-DYNA. Firstly, the influence of element size on the response of tension-stiffening analyses with the two modelling approaches was investigated. Then, the results of the two approaches were compared for plain and fibre reinforced tension stiffening and a drop weight impact test. It was shown that only the coincident with slip approach provided mesh insensitive results. However, both approaches were capable of reproducing the overall response of the experiments in the form of load and displacements satisfactorily for the meshes used.

Drop-Weight Impact Test for Fibre Reinforced Concrete: Analysis of Test Configuration

2021 ◽  
pp. 61-73
Author(s):  
Juan Carlos Vivas ◽  
Facundo Isla ◽  
María Celeste Torrijos ◽  
Graciela M. Giaccio ◽  
Bibiana Luccioni ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Impact Test ◽  
Fibre Reinforced Concrete ◽  
Test Configuration ◽  
Drop Weight ◽  
Weight Impact
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