1. May i know the values for the concrete damaged plasticity in abaqus? it is default value or depends on the concrete properties? btw, where to obtain the values?
2. In the real case, there are the spreader beams on top of the concrete slab as the load inputs. may i know how to input this load in simulation analysis of ABAQUS? it should be assigned as line load/point load/...?
3. how to create the nonlinear result? which module should be used for assigning the nonlinear properties?
i am doing a research on composite structures (steel beam-concrete slab). Thank you for your time.
Article Identification of parameters of concrete damage plasticity c...
this article will help you to understand and define concrete damage plasticity parameters.
There is a new way of calculating or identifying the parameters of CDP.
Please look for this paper:
New methodology for calculating damage variables evolution in Plastic Damage Model for RC structures B. Alfarah a , F. López-Almansa b,⇑ , S. Oller
Much regards
Dear Hui Kah Wong,
The answers to your question can be found in the following dissertation (in particular, Chapter Three). You can find more detailed description on how to assume/compute the main parameters of the Concrete Damaged Plasticity Model (CDPM).
Good luck!
http://hdl.handle.net/10012/13092
Dear Hui Kah Wong,
As Jide Soyemi has said, the following paper is a good reference for the correct calibration of the Concrete Damaged Plasticity model available in ABAQUS.
B. Alfarah, F. López-Almansa, S. Oller, New methodology for calculating damage variables evolution in Plastic Damage Model for RC structures, Engineering Structures. 132 (2017) 70–86.
Some general comments:
- You can use ABAQUS/Explicit, performing a quasi-static analysis. Better results are achieved in the convergence of the model than if you use ABAQUS/Standard with a static General analysis or static RIKS analysis.
- The following paper is a good reference on modeling push-out test in composite structures using ABAQUS/Explicit:
J. Qureshi, D. Lam, Behaviour of Headed Shear Stud in Composite Beams with Profiled Metal Decking, Advances in Structural Engineering. 15 (2012) 1547–1558. doi:10.1260/1369-4332.15.9.1547.
The article explains some important details, which you must take into account.
I hope these comments can help you.
Best regards,
[2]Lee, J., Gregory, L.F. 1998. Plastic-damage model for cyclic loading of concrete structures. J. Eng. Mech., 124: 892-900.
[3]Lubliner, J., Oliver, J., Oller, S., Oñate , E.1989. A plastic-damage model for concrete. Int. J. Solids Structures, Vol. 25 No. 3: 299-326.
[4]Kupfer, H., Hilsdorf, H.K., Rusch, H. 1969. Behavior of Concrete under Biaxial Stresses. ACI Journal, No. 66-52: 656-666.
[5] Abaqus Analysis User's Guide >>>23.6.3 Concrete damaged plasticity.
[6]Wahalathantri, B.L., Thambiratnam, D.P., Chan, T.H.T, & Fawzia, S. 2011. A material model for flexural crack simulation in reinforced concrete elements using Abaqus. In Proceedings of the First International Conference on Engineering, Designing and Developing the Built Environment for Sustainable Wellbeing, 27-29 April 2011, Qld, Australia.
[7]Tomasz, J., Tomasz, L., 2005. Identification of Parameters of Concrete Damage Plasticity Constitutive Model.
FOUNDATION OF CIVIL AND ENVIRONMENTAL ENGINEERING, No.6: 53-69.
[8]Szczecina, M., Winnicki, A. 2015. Calibration of the CDP model parameters in Abaqus. The 2015 World Congress on Advances in Structural Engineering and Mechanics (ASEM15), 25-29 August, 2015, Incheon, Korea.
[9]Hsu, L.S., HsuT, C.-T.T. 1994. Complete stress-strain behavior of high-strength concrete under compression. Magazine of Concrete Research, 46, No. 169: 301-312.
[10]Aslani, F., Jowkarmeimandi, R. 2012. Stress-strain model for concrete under cyclic loading. Magazine of Concrete Research, 64(8): 673-685.
I've made a webtool that should help new users to define these properties. Please find it here:
concretedamagedplasticity.com
- Badges
- Science topic