January 17, 2018 at 7:55 pmRana NasserSubscriber
How can I define the allowable bearing capacity of the soil, cohesion, and internal friction when adding material in the engineering data? Or how can I define a soil material in ansys workbench?
January 17, 2018 at 8:49 pmpeteroznewmanSubscriber
There are several material models that mention soil. Use the ANSYS Help window and go to Mechanical APDL > Materials Reference. There are two places to read: 4.3 and 4.9.
4.3. Porous Elasticity
Porous materials such as soils or polymer foams display nonlinear elastic behavior caused by the effect of voids on the bulk modulus of the material during hydrostatic compression.
Compared to the solid portion of the material, voids are relatively compressible, and the effect on the bulk modulus varies according to void proportions. During hydrostatic loading, voids compress or dilate; however, the solid portion of the material remains comparatively stiff, exhibiting little volumetric deformation. As the void ratio of the material changes, the bulk modulus also changes.
Geomechanics encompasses the mechanical behavior of soil, rock, and aggregate materials in both their natural and man-made states. Applications for these material models include footings and pilings, tunneling, excavations, seismic events, and compaction or consolidation.
The modified Cam-clay plasticity model  is based on the critical state concept and is commonly used for soil simulation. The critical state concept is a material phenomenon common in the shear deformation of soils where the stress and volume remain constant after a critical state of deformation, and further loading causes increasing plastic strain but no increase in volume or stress. The Cam-clay plasticity model, combined with porous elasticity, models the effect of voids on the elastic behavior of the material.
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- Saving & sharing of Working project files in .wbpz format
- Solver Pivot Warning in Beam Element Model
- Understanding Force Convergence Solution Output
- An Unknown error occurred during solution. Check the Solver Output…..
- What is the difference between bonded contact region and fixed joint
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- whether have the difference between using contact and target bodies
- Defining rigid body and contact
- Colors and Mesh Display
- A solver pivot warning or error has been detected
© 2023 Copyright ANSYS, Inc. All rights reserved.