In ANSYS, how to model temperature dependent polymer characteristics? I mean to say which visco-elastic material properties are important in terms of Ansys? also which visco-plastic material properties are important in terms of Ansys?
Follow these links...
https://www.google.co.in/url?sa=t&source=web&rct=j&url=http://www.ansys.com/-/media/ansys/corporate/resourcelibrary/article/aa-v2-i4-analyzing-viscoelastic-materials.pdf&ved=0ahUKEwjuiemOurPYAhUUS48KHQmJASgQFghSMAM&usg=AOvVaw2tHd2hDaq2WPezk6goWCLp
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://publications.polymtl.ca/1563/1/2014_ThibautCrochon.pdf&ved=0ahUKEwjuiemOurPYAhUUS48KHQmJASgQFgh2MAw&usg=AOvVaw0t8T3sF0Ny8X3v0Kphe1V5
https://www.google.co.in/url?sa=t&source=web&rct=j&url=http://www.ansys.com/-/media/ansys/corporate/resourcelibrary/conference-paper/2002-int-ansys-conf-161.pdf&ved=0ahUKEwiT8fPPurPYAhUJqo8KHTujCEQQFghaMAQ&usg=AOvVaw3-ldCl6HJs5GDIolh06pQJ
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://caeai.com/sites/default/files/CAEAI%2520Plastics%2520Keynote.pdf&ved=0ahUKEwiT8fPPurPYAhUJqo8KHTujCEQQFghPMAI&usg=AOvVaw1244yrzNBxZE86RcpJ90sy
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://caeai.com/sites/default/files/CAEA_Plastics_Demo.pdf&ved=0ahUKEwiT8fPPurPYAhUJqo8KHTujCEQQFghSMAM&usg=AOvVaw3c11jv_VbGQJRR9ixvQH6K
dear doctor
link may help
www.cae.tntech.edu/~chriswilson/FEA/ANSYS/ANSYS_nonlinear.pdf
regards
Dear All,
Thanks for the reply. I have gone through the links but do you have any reference polymer material data which fulfill the requirement ?
Good day. My comment will not give you 100% of the answer. I wish I would know. However, I want to tell you that the question is too broad / very general. It is important to know what kind of polymer and in what temperature conditions and what modes of loading-unloading. What models of viscoelasticity and thermoelasticity does ANSYS support? For example: COMSOL contains the Kelvin-Voigt viscoelasticity model, where relaxation time is the key parameter. However, this parameter is determined depending on the scope of application of the polymer and does not have a clear certification / standardization. There are various ways to determine this parameter or use a different one or come up with your own. Perhaps the article "Liu P.F. Finite element analysis of viscoelastic creep behaviors of deep-sea manned submersible viewport windows" will help you https://www.sciencedirect.com/science/article/abs/pii/S0308016120301952?dgcid=rss_sd_all some issues of calculating PMMA (physically nonlinear case) are discussed in my articles.
Sandeep -- This may help. MIL HBK 17A (Plastics for Aerospace Vehicles) has a variety of acrylic grades with a range of stress strain, creep, and other curves. Keep in mind this is an older reference. Ideally, you would get the testing you need for the planned grade and type of acrylic. Wanting to model "acrylic" is about like "steel" -- there is a range of products. https://www.abbottaerospace.com/wpdm-package/mil-hdbk-17a-p2-plastics-for-aerospace-vehicles-part-ii-transparent-glazing-materials/
NA Gasratova -- is the new COMSOL module for polymer flow as in "melt" or "making new parts" or is this a special high-creep module for in-service considerations?
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