Hi everyone
I want to define properties of cam-clay plasticity constitutive model in abaqus. for example k (kapa), Lamba and ... . I will be grateful if you can solve this problem and tell me where can I input these parameters in abaqus. Thanks |
Lamda is the compression index slope of the consolidation line of soil
k is the recompression index . You get these parameters from the consolidation test. Read the manual --- On Sun, 12/28/08, Seyed Mohammad Ali Tasaloti <[hidden email]> wrote: From: Seyed Mohammad Ali Tasaloti <[hidden email]> Subject: [Abaqus] Cam-Clay Model To: [hidden email] Date: Sunday, December 28, 2008, 3:37 AM Hi everyone I want to define properties of cam-clay plasticity constitutive model in abaqus. for example k (kapa), Lamba and ... . I will be grateful if you can solve this problem and tell me where can I input these parameters in abaqus. Thanks [Non-text portions of this message have been removed] |
In reply to this post by S.M.Ali Tasaloti
Hi,
To define Cam-Clay model in CAE, you can do as following: 1- Define Porous Elasticity through Material/Mechanical/Elasticity/Porous Elastic in this section you can define Logarithmic bulk modulus, kapa and Poisson's ratio, nu (you can find more materials in section 12.8.1 Defining elasticity in ABAQUS/CAE User's Manual) 2- Define Clay Plasticity through Material/Mechanical/Mechanical/Plasticity/Clay Plasticity in the section you can define - Logarithmic plastic bulk modulus, Lamba - Stress ratio at critical state, Mc - Initial yield surface size, a0 (0.5 consolidation pressure) - Flow Stress Ratio, K (extension/compression results ratio) (find more materials in section 12.8.2 Defining plasticity/clay plasticity in ABAQUS/CAE User's Manual) Hope it helps, Farshid --- In [hidden email], "Seyed Mohammad Ali Tasaloti" <tasaloti02@...> wrote: > > Hi everyone > I want to define properties of cam-clay plasticity constitutive model > in abaqus. for example k (kapa), Lamba and ... . I will be grateful if > you can solve this problem and tell me where can I input these > parameters in abaqus. > Thanks > |
In reply to this post by S.M.Ali Tasaloti
--- In [hidden email], "Seyed Mohammad Ali Tasaloti"
<tasaloti02@...> wrote: > > Hi everyone > I want to define properties of cam-clay plasticity constitutive model > in abaqus. for example k (kapa), Lamba and ... . I will be grateful if > you can solve this problem and tell me where can I input these > parameters in abaqus. > Thanks > Tasaloti You could input the parameters in Property Module--Material--Creat-- Mechancial--Plasticity--Clay Plasticity in CAE The meaning of the parameters you could see Analysis Use's Manual:"Critical state(clay) plasticity model"18.3.4 jenny_dyy <[hidden email]> 2008/12/30 |
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In reply to this post by farshidvahedi
Hi,
1-what does "Logarithmic bulk modulus" mean? it mans log(k) which k is the bulk modulus(MPa)? 2-in Abaqus the unit for permeability is ms-1 but in papers is m4/Ns .how can we translate together? 3-in the part of porous elasticity we have to put stress limit but I don't have any stress limit.what should I do? Thanks, Somaye |
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In reply to this post by farshidvahedi
Hi,
1-what does "Logarithmic bulk modulus" mean? it mans log(k) which k is the bulk modulus(MPa)? 2-in Abaqus the unit for permeability is ms-1 but in papers is m4/Ns .how can we translate together? 3-in the part of porous elasticity we have to put stress limit but I don't have any stress limit.what should I do? Thanks, Somaye |
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In reply to this post by sjafari
k in abaqus that we see as "Logarithmic bulk modulus", in reality is kapa that is the slope of e-ln(p') curve
(kapa is reloading slope) |
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