Parameters for PDMY

[Lei Lei]

Dear STKOteam,

I have some questions regarding the PDMY material constitutive model and would appreciate your assistance:

1. Differences in Shear Contraction, Dilation, and Liquefaction Parameters
The parameters listed on your website differ from those in the main references, particularly for shear contraction, dilation, and liquefaction.

Parameters from Zhaohui Yang's PhD Thesis

c7f8c0560f850bf497be4e49a082ad7.png (150.07 KiB) Viewed 2009 times

Parameters from Opensees Webstie

0b654ee3e3ee5aac2daec190125c2ce.png (44.87 KiB) Viewed 2009 times

2. Missing Critical State Parameters
The main references do not include critical state parameters.

Could you suggest any literature or resources that provide detailed information on these parameters shown on the website?

Looking forward to your reply. Please let me know if additional details are needed.

Thank you!
Best Wishes!

[STKO Team]

The parameters listed on your website differ

That is not our website, but the OpenSees' one.

Could you suggest any literature or resources that provide detailed information on these parameters shown on the website?

I think the best way for you would be to contact the author who implemented it in OpenSees