Presentation is loading. Please wait.

Presentation is loading. Please wait.

LOAD SETTLEMENT BEHAVIOUR OF JUTE GEOTEXTILE REINFORCED SUBGRADE OF RURAL ROAD USING ABAQUS Sudip K. Roy Ambarish Ghosh Ashis Kumar Bera Sandip Chakraborty.

Similar presentations


Presentation on theme: "LOAD SETTLEMENT BEHAVIOUR OF JUTE GEOTEXTILE REINFORCED SUBGRADE OF RURAL ROAD USING ABAQUS Sudip K. Roy Ambarish Ghosh Ashis Kumar Bera Sandip Chakraborty."— Presentation transcript:

1 LOAD SETTLEMENT BEHAVIOUR OF JUTE GEOTEXTILE REINFORCED SUBGRADE OF RURAL ROAD USING ABAQUS Sudip K. Roy Ambarish Ghosh Ashis Kumar Bera Sandip Chakraborty Bengal Engineering and Science University, Shibpur Howrah – June, 2013 Department of Civil Engineering

2 Why Numerical Analysis?

3 SELECTION OF NUMERICAL TOOL

4 LITERATURE REVIEW ResearchersResearch Area/ Findings S. Pirabarooban, M. Zaman, R. A. Tarefder. (2003) FEM results show that the ABAQUS-based model can adequately account for cyclic loading and other factors and, as such, it can be used effectively to evaluate the rutting potential of in-service pavement. K. Nesnas, M. Nunn. (2004) A response model (3D) is generated in ABAQUS to predict top down cracking R. Zafar, W. Nassar and A. Elbella. (2005) In this study the finite element software ABAQUS is used to study stress redistribution due to the presence of earth pressure cell (vertical stress-measuring instrument) in the pavement layers W.G. Buttlar, G. H. Paulino, and S. H.Song. (2006) Numerical examples and an implementation using the user material subroutine UMAT of the finite element software ABAQUS are also provided to illustrate the benefits of using graded elements in pavement analysis.

5 LITERATURE REVIEW ResearchersResearch Area/ Findings Tabakovic, Amir; McNally, Ciaran; Sorelli, L. G.; Gibney, Amanda; Gilchrist, M. D. (2006) A damage mechanics model has been developed in order to compare the behaviour of RAP (Recycled Asphalt Pavement), The damage model was implemented within the ABAQUS finite element code using a UMAT subroutine Grace G. Abou-Jaoude, Ziad G. Ghauch A 3D Finite Element model of the pavement involving a linear viscoelastic constitutive model for HMA materials and non-uniform tire contact stresses is developed using ABAQUS 6.11 to investigate the effectiveness of several design strategies involved in long-life, perpetual pavement design A.M.Khaki, E. Azadravesh. (2010) A 3D FE model is generated by ABAQUS for evaluating the effects of joint opening on load transfer efficiency in concrete pavements Rahman M.T, Mahmud K, Ahsan S. (2011) In this study, a 3D finite element model of flexible pavement is developed using ABAQUS for better prediction of mechanical behaviour and pavement performance subjected to various traffic factors.

6 LITERATURE REVIEW ResearchersResearch Area/Findings B. Sukumaran, V. Kyatham, A. Shah, D.Sheth. (2004) The stress-strain response of the various soils is simulated using an elasto-plastic model and von Mises strength criteria available in finite element code ABAQUS. The empirical relationship between CBR and resilient modulus is investigated based on the results obtained from the three dimensional finite element analyses. Gholam Ali Shafabakhsh, Abbas Akbari. (2013) 3D modelling with help of finite element computer code ABAQUS has been used to determine the role of different parameters of passenger, commercial and military airplane’s main gear s which cause the major failures to the rigid runway pavements. Gholam Ali Shafabakhsh, Mana Motamedi, Afshin Family. (2013) This research, at first, tends to investigate influence of changing asphalt pavement thickness in vertical strain using finite element software (ABAQUS) and finally, the results related to the finite element, were compared with experimental data.

7 ABAQUS

8

9 Jute Geotextile Application

10 Rajar hat Test Track

11

12

13

14

15 Problem Description

16 Geometry of the Model

17

18

19 Material property MaterialModel used Density (kN/m 3 ) Elastic Modulus (MPa) Poisson’s ratio Friction angle (Degree) Dilation angle Cohesion (kPa) WBMLinear Elastic NA GSBLinear Elastic NA SandLinear Elastic NA JGTLinear Elastic 800.3NA SubgradeMohr- Coulomb model Existing soil layer Mohr- Coulomb model

20 LOAD Fig. 9 Load and Boundary condition applied to the model (Reinforced section, JGT100)

21 LOAD

22 INTERACTION

23 Meshing Criteria

24 Results and Discussions Fig.11 Deformed shape for UR GSB 100

25 Results and Discussions Fig.12Deformed shape for UR GSB 175

26 Results and Discussions Fig.13 Deformed shape for JGT Reinforced Section

27 Results and Discussions Fig.14 Deformed shape for JGT Reinforced Section JGT

28 Results and Discussions Fig.15 Deformed and Undeformed shape for JGT Reinforced Section

29 Results and Discussions Fig.16 Tensile stress ( ) & Compressive stress ( )

30 Results and Discussions Fig.17 Typical Load settlement plot at subgrade unreinforced ( UR GSB 100 ) road section ( by using cyclic loading)

31 Results and Discussions Fig.18 Typical Load settlement plot at subgrade Reinforced road section ( Cyclic loading )

32 Results and Discussions Fig.19Load (Static) vs. Rut depth (mm)

33 Results and Discussions Fig.20 Rut depth (mm) for the three models ( Subgrade top )

34 Results and Discussions Fig.21 Comparison between rut depth for unreinforced ( URGSB 100 ) and reinforced model after 8 hours vehicle movement at an interval of 45 second

35 Results and discussions

36 Conclusions

37 References

38 Thank You


Download ppt "LOAD SETTLEMENT BEHAVIOUR OF JUTE GEOTEXTILE REINFORCED SUBGRADE OF RURAL ROAD USING ABAQUS Sudip K. Roy Ambarish Ghosh Ashis Kumar Bera Sandip Chakraborty."

Similar presentations


Ads by Google