Menu

Discussion Forum

New Discussion
Filtra

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Cohesive zone modeling(only mode1)

Posted 10 gen 2023, 23:12 GMT-5 Modeling Tools & Definitions, Structural Mechanics Version 6.0 2 Replies

Lee Junghyun
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello,

I am modeling thin layer CZM (Cohesive zone modeling). I only know fracture distance and tensile strength in tension. There is no value in shear. So, I want to use only Mode1, not Mixed Mode. Does anyone have any suggestions/tips?

Thank you!

2 Replies Last Post 25 gen 2023, 07:38 GMT-5
Suganth V
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 2 years ago 21 gen 2023, 13:44 GMT-5

general steps: * * Create a 3D model of the structure in the COMSOL Model Builder, and define the geometry, material properties, and boundary conditions. * * Add the Solid Mechanics interface to the model to simulate the mechanical behavior of the structure. * * Add the Cohesive Zone Modeling interface to the model to simulate the fracture behavior of the thin layer. In this interface, you can define the fracture distance and tensile strength of the thin layer, and use these values to model the crack propagation. * * In the Cohesive Zone Modeling interface, you will have to set the "Mixed Mode" option to "Off", in order to use only Mode I. * * Apply a tensile loading condition to the structure, and solve the model. * * Post-process the results to analyze the crack propagation behavior of the thin layer.

general steps: * * Create a 3D model of the structure in the COMSOL Model Builder, and define the geometry, material properties, and boundary conditions. * * Add the Solid Mechanics interface to the model to simulate the mechanical behavior of the structure. * * Add the Cohesive Zone Modeling interface to the model to simulate the fracture behavior of the thin layer. In this interface, you can define the fracture distance and tensile strength of the thin layer, and use these values to model the crack propagation. * * In the Cohesive Zone Modeling interface, you will have to set the "Mixed Mode" option to "Off", in order to use only Mode I. * * Apply a tensile loading condition to the structure, and solve the model. * * Post-process the results to analyze the crack propagation behavior of the thin layer.
Lee Junghyun
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 2 years ago 25 gen 2023, 07:38 GMT-5

thank you so much for your answer

But there is a problem. How do I turn off Mixed Mode?

thank you so much for your answer But there is a problem. How do I turn off Mixed Mode?

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content