Concrete Microplane Model - FEA using ANSYS - Lesson 10
This tutorial shows how to use the Microplane model to simulate a concrete cube and reinforced concrete beam. This implementation incorporates coupled plasticity-damage and nonlocal behavior. This is the first tutorial in this series incorporating Mechanical APDL commands into the analysis.
Learning objectives:
1. Sketch the Drucker-Prager yield surface and locate key points and features.
2. Explain the various parameters for the Microplane model and their typical values.
3. Add APDL commands to model complex material behavior and change element types.
=== Downloads ===
Drucker-Prager Yield Surface (Excel):
https://docs.google.com/uc?id=1CmO5iNTfu8j-8WvzWhF1H-Y-uX9LowPj&export=download
(direct download link of Excel file, both psi and MPa units)
Microplane APDL Commands for psi (text file):
https://drive.google.com/file/d/1PToSbzrCqu3WDLy1VZcAzSTvuBbf3rg1/view?usp=sharing
Microplane APDL Commands for MPa (text file):
https://drive.google.com/file/d/1XC4uspetbG45U57VfNnYk8W22HMI08_W/view?usp=sharing
=== References ===
This particular implementation in ANSYS is based on the following references:
Zreid, I. & Kaliske, M. (2018). A gradient enhanced plasticity-damage microplane model for concrete. Computational Mechanics. 10(1007), s00466-018-1561-1. https://doi.org/10.1007/s00466-018-1561-1
Zreid, I. & Kaliske, M. (2016). An implicit gradient formulation for microplane Drucker-Prager plasticity. International Journal of Plasticity. 83, 252-272. https://doi.org/10.1016/j.ijplas.2016.04.013
Zreid, I. & Kaliske, M. (2014). Regularization of microplane damage models using an implicit gradient enhancement. International Journal of Solids and Structures. 51(19), 3480-3489. https://doi.org/10.1016/j.ijsolstr.2014.06.020
The original microplane model was developed by Z.P. Bazant and others:
Bažant, Z. P., & Gambarova, P. G. (1984). Crack shear in concrete: Crack band microplane model. Journal of structural engineering, 110(9), 2015-2035. https://doi.org/10.1061/(ASCE)0733-9445(1984)110:9(2015)
Bazant, Z. P. & Oh, B. H. (1985). Microplane model for progressive fracture of concrete and rock. Journal for Engineering Mechanics. 111, 559-582. https://doi.org/10.1061/(ASCE)0733-9399(1985)111:4(559)
Carol I, Jirásek M, & Bažant Z (2001). A thermodynamically consistent approach to microplane theory. Part I. Free energy and consistent microplane stresses. International Journal of Solids and Structures. 38:2921–2931. https://doi.org/10.1016/S0020-7683(00)00212-2
Видео Concrete Microplane Model - FEA using ANSYS - Lesson 10 канала Structures with Prof. H
Learning objectives:
1. Sketch the Drucker-Prager yield surface and locate key points and features.
2. Explain the various parameters for the Microplane model and their typical values.
3. Add APDL commands to model complex material behavior and change element types.
=== Downloads ===
Drucker-Prager Yield Surface (Excel):
https://docs.google.com/uc?id=1CmO5iNTfu8j-8WvzWhF1H-Y-uX9LowPj&export=download
(direct download link of Excel file, both psi and MPa units)
Microplane APDL Commands for psi (text file):
https://drive.google.com/file/d/1PToSbzrCqu3WDLy1VZcAzSTvuBbf3rg1/view?usp=sharing
Microplane APDL Commands for MPa (text file):
https://drive.google.com/file/d/1XC4uspetbG45U57VfNnYk8W22HMI08_W/view?usp=sharing
=== References ===
This particular implementation in ANSYS is based on the following references:
Zreid, I. & Kaliske, M. (2018). A gradient enhanced plasticity-damage microplane model for concrete. Computational Mechanics. 10(1007), s00466-018-1561-1. https://doi.org/10.1007/s00466-018-1561-1
Zreid, I. & Kaliske, M. (2016). An implicit gradient formulation for microplane Drucker-Prager plasticity. International Journal of Plasticity. 83, 252-272. https://doi.org/10.1016/j.ijplas.2016.04.013
Zreid, I. & Kaliske, M. (2014). Regularization of microplane damage models using an implicit gradient enhancement. International Journal of Solids and Structures. 51(19), 3480-3489. https://doi.org/10.1016/j.ijsolstr.2014.06.020
The original microplane model was developed by Z.P. Bazant and others:
Bažant, Z. P., & Gambarova, P. G. (1984). Crack shear in concrete: Crack band microplane model. Journal of structural engineering, 110(9), 2015-2035. https://doi.org/10.1061/(ASCE)0733-9445(1984)110:9(2015)
Bazant, Z. P. & Oh, B. H. (1985). Microplane model for progressive fracture of concrete and rock. Journal for Engineering Mechanics. 111, 559-582. https://doi.org/10.1061/(ASCE)0733-9399(1985)111:4(559)
Carol I, Jirásek M, & Bažant Z (2001). A thermodynamically consistent approach to microplane theory. Part I. Free energy and consistent microplane stresses. International Journal of Solids and Structures. 38:2921–2931. https://doi.org/10.1016/S0020-7683(00)00212-2
Видео Concrete Microplane Model - FEA using ANSYS - Lesson 10 канала Structures with Prof. H
Показать
Комментарии отсутствуют
Информация о видео
25 августа 2021 г. 20:57:17
00:17:56
Другие видео канала
Stress, Internal Forces, and Shear and Moment Diagrams - Intro to Structural AnalysisDirect Analysis Method for Steel Buildings using RISA 3DMoment Capacity of Reinforced Concrete BeamsStructural Analysis using ETABS - FundamentalsNonlinear Geometry and Large Displacement Analysis - FEA using ANSYS - Lesson 7Plasticity - FEA using ANSYS - Lesson 8Cracking Moment of Reinforced Concrete Beams - Gross Section vs Transformed SectionDesign Envelopes for Worst-Case Demands with Movable Live LoadsTransformed Sections and Cracked Moment of InertiaIntro to Structural Analysis - Loads and LRFDFlat Roof Snow Loads using ASCE 7-22Truss Analysis - FEA using ANSYS - Lesson 3How do structures carry wind and seismic loads? An Intro to Lateral Force Resisting SystemsInfluence Lines and Moving Loads - Intro to Structural AnalysisIntroduction to ANSYS - FEA using ANSYS - Lesson 1Mesh Refinement and Best Practices - FEA using ANSYS - Lesson 5Concrete Beam Design 101 - Tension ReinforcementDeflection of Reinforced Concrete Beams - Example using ACI 318-19Projected Loads and Snow Loads - Intro to Structural AnalysisFrame Analysis - FEA using ANSYS - Lesson 4