September 27, 2022 at 8:51 amgarazilizasoSubscriber
I'm trying to make a simulation of a cone indenting a piece of material. Since I already have the experimental data, I know that the indentation force was of 2N. I also know that the maximum indentation distance has been 0.19 mm. By defining displacements and force, I have achieved to simulate the actual indentation distance, but even though I define 2N as force, in the force reaction analysis I get a maximum force of 26N, when in reality it should be 2N. I have already limited that in the force function, but still the force I get is much larger and I don't know why. Any idea/solution?
September 27, 2022 at 11:04 ampeteroznewmanSubscriber
I assume the model includes a Plasticity material model. Which one are you using? The simplest is Bilinear Isotropic Hardening. By changing the Yield Strength and Tangent Modulus, I expect you can find values that result in a force of 2N at an indentation distance of 0.19 mm.
September 27, 2022 at 11:27 amgarazilizasoSubscriber
Thank you for your answer Peter.
The material I'm trying to indent has a linear elastic function:Isotropic elasticity (Young modulus: 2000 MPa, and a Poisson's ratio: 0.22), and prony shear relaxation in order to simulate its viscoelastic properties. I don't change values in the engineering data section, since those are defined properties of the material. I'm changing them in the static structural force section. But I am not getting what I want. Changing de displacement in the static structural has worked, but it doesn't happen with the force.
September 27, 2022 at 12:29 pmjonlSubscriber
You have to define either displacement or force, the other one will be the result of the simulation. If you get a higher force for the same displacement, this means your part is too stiff and you need to change the material properties.
September 27, 2022 at 2:05 pmgarazilizasoSubscriber
Thank you so much Joni, I will check it out
- You must be logged in to reply to this topic.
Simulation World 2022
Check out more than 70 different sessions now available on demand. Get inspired as you hear from visionary companies, leading researchers and educators from around the globe on a variety of topics from life-saving improvements in healthcare, to bold new realities of space travel. Take a leap of certainty and check out a session today here.
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.
- How to calculate the residual stress on a coating by Vickers indentation?
- An Unknown error occurred during solution. Check the Solver Output…..
- Saving & sharing of Working project files in .wbpz format
- Solver Pivot Warning in Beam Element Model
- Understanding Force Convergence Solution Output
- Colors and Mesh Display
- whether have the difference between using contact and target bodies
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- What is the difference between bonded contact region and fixed joint
- Massive amount of memory (RAM) required for solve
© 2022 Copyright ANSYS, Inc. All rights reserved.