Constitutive models - General https://geoxpm.com/community/general/constitutive-models/ GeoXPM Discussion Board en-US Sun, 17 May 2026 17:58:12 +0000 wpForo 60 RE: Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-85 Wed, 08 May 2024 00:36:07 +0000 @pipiqiu311 see #post-54 https://geoxpm.com/community/general/constitutive-models/#post-54 . Equation (59)

 

]]> General Tien Nguyen (Smith) https://geoxpm.com/community/general/constitutive-models/#post-85 RE: Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-78 Wed, 20 Mar 2024 13:15:27 +0000 @tienlk2004

I would like to have further details about the parameters governing the Drucker-Prager with softening.What is the relationship between parameters "a" and "b" and the softening coefficient?

]]> General pipiqiu311 https://geoxpm.com/community/general/constitutive-models/#post-78 RE: Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-60 Fri, 08 Sep 2023 01:46:17 +0000 @alrm You can find the template on the Examples page for the User-defined Constitutive Model https://geoxpm.com/materials/

It's this one https://geoxpm.com/wp-content/uploads/2023/06/GeoXPM-User-defined-Constitutive-Model-Template.zip

 

]]> General Tien Nguyen (Smith) https://geoxpm.com/community/general/constitutive-models/#post-60 RE: Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-59 Thu, 31 Aug 2023 12:39:09 +0000 Hello,
Do you have any template for user-defined constituive model?

Regards,
A

]]> General alrm https://geoxpm.com/community/general/constitutive-models/#post-59 RE: Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-54 Wed, 26 Jul 2023 02:48:52 +0000 @pietro-mazzuca 

Please find a description of the Drucker-Prager softening model in this paper:
Bui, H. H., & Nguyen, G. D. (2020). Smoothed particle hydrodynamics (SPH) and its applications in geomechanics. ALERT Doctoral School 2020 Point based numerical methods in geomechanics, 3.
]]> General Tien Nguyen (Smith) https://geoxpm.com/community/general/constitutive-models/#post-54 RE: Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-53 Tue, 25 Jul 2023 15:03:08 +0000 Dear sirs,

I would like to have further details about the parameters governing the Drucker-Prager with softening. What the parameters "a" and "b" represent? In addition, which is the softening law implemented in the software?

]]> General Pietro Mazzuca https://geoxpm.com/community/general/constitutive-models/#post-53 RE: Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-26 Fri, 30 Jun 2023 01:45:25 +0000 Hi @vjagodnik

Thanks for the suggestion. I think it's a good idea. I have opened the 'Constitutive models' section.

]]> General Tien Nguyen (Smith) https://geoxpm.com/community/general/constitutive-models/#post-26 Constitutive models https://geoxpm.com/community/general/constitutive-models/#post-22 Thu, 29 Jun 2023 09:34:54 +0000 Is there an idea to open a part of forum regarding constitutive models and their implementation to GeoXPM?

]]> General vjagodnik https://geoxpm.com/community/general/constitutive-models/#post-22