Dear all, I’m using the UMAT file in which the hypoplastic model for thermal cycles is implemented. I have done some runs for an axisymmetrical model for a single energy […]
I am modelling sand slopes in Plaxis 3D using an HP model. I am using soil parameters from “Modelling of Soil Behaviour with Hypoplasticity” by David Masin (2019). During the […]
I tried to model sample of triaxial test in Abaqus program. I used hypoplastic subroutine. The parameters used in hypoplastic model was Hochstetten sand the given in website “https://web.natur.cuni.cz/uhigug/masin/plaxumat/node5.html”. The […]
The equations for a vertical cut in cohesive material are given in several publications including Heyman (1973): The stability of a vertical cut (see attachment Equations1.jpeg) and Verruijt (2001) Soil […]
The Tochnog Professional finite element program is now available as free version with 100 elements. It can be downloaded without registration from http://www.tochnogprofessional.nl. Several commercial and free pre- and postprocessors […]
Where the client was forced to make all his horizontal loaded Dolphins (piles) 10 m longer we could trustworthy proof that this actually was not necessary saving millions of cost […]
Dear all, When I check the umat file of sand hypoplastic modeling, I find there are two parametesr(p_t(2), bulk_w(15)) without any definitions. Could someone kindly explain the exact meaning for […]
Hi Everybody, I would like to ask an error problem where I am getting while using Plaxis 3D tunnel V 1.2. Previously I was using the software with Windows 7 […]
Use total plastic strain and Cauchy for 3D
strain=sqrt(0.5*(pe11-pem)^2+0.5*(pe22-pem)^2+0.5*(pe33-pem)^2+pe12^2+pe23^2+pe13^2)
pem=(pe11+pe22+pe33)/3
for explixit pe23=array(5) and pe13=array(6)
for implicit pe23=array(6!) and pe13=array(5!)*
for plainstrain: pe13 and pe23 do not exist
*
for explicit vgetvrm gives you e12,e23,e13
for implicit you maybe get y12,y13,y23: you have to check this
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Use total plastic strain and Cauchy for 3D
strain=sqrt(0.5*(pe11-pem)^2+0.5*(pe22-pem)^2+0.5*(pe33-pem)^2+pe12^2+pe23^2+pe13^2)
pem=(pe11+pe22+pe33)/3
for explixit pe23=array(5) and pe13=array(6)
for implicit pe23=array(6!) and pe13=array(5!)*
for plainstrain: pe13 and pe23 do not exist
*
for explicit vgetvrm gives you e12,e23,e13
for implicit you maybe get y12,y13,y23: you have to check this