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Supporting Organisations
Recent posts
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Presentations from Prague Geotechnical Days 2023 including 29th Prague Geotechical Lecture by Yannis Dafalias 25.5.2023
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Problem in using Hypoplastic model for sand in Abaqus. 17.5.2023
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An error in the SANISAND umat runtime 8.5.2023
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Htypoplastic Model in Miidas GTS NX 25.4.2023
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set cavitation limit in ABAQUS/STANDARD when using SANISAND umat 2.4.2023
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FE formulation and software 25.3.2023
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Multi-objective analysis of the Sand Hypoplasticity model calibration 24.3.2023
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Problem with SANISAND UMAT 7.3.2023
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Prague Geotechnical Days 2023 (22nd – 23rd of May) with Prague Geotechnical Lecture by prof. Yannis Dafalias 28.2.2023
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What is an appropriate damping model for dynamic liquefaction analysis of tailings storage facility in FLAC? 10.2.2023
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Abaqus vs Plaxis – Local Convergence Tolerances 2.2.2023
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Zbraslav sand – Cyclic tests by Charles University 17.1.2023
Greetings professor,
I’m trying to implement clay hypoplastic model for a residual soil in Colombia. I do not count with the neccessary field or laboratory test to obtain the constitutive parameters related to stiffness anisotropy. Would you recommend to utilize only parameters related to the basic model and the intergranular strain concept, or should I obtain alpha_[G, E, u] by other thechnique such as optimization algorithms?
By the way, what I’m trying to do is to reproduce the soil mechanical behavior (different stress paths, drained and undrained, and different soil responses such as q vs ea, G degradations, among others) with only one set of parameters.
Thanks in advance!