Numerical analysis of start-up planar and axisymmetric contraction flows using multi-mode differential constitutive models

1993 ◽  
Vol 48 (1-2) ◽  
pp. 147-180 ◽  
Author(s):  
Frank P.T. Baaijens
Keyword(s):  
Numerical Analysis ◽  
Constitutive Models ◽  
Start Up ◽  
Multi Mode

scholarly journals Numerical Analysis of Diaphragm Wall Model Executed in Poznań Clay Formation Applying Selected Fem Codes

2016 ◽  
Vol 62 (3) ◽  
pp. 207-224 ◽  
Author(s):  
M. Superczyńska ◽  
K. Józefiak ◽  
A. Zbiciak
Keyword(s):  
Numerical Analysis ◽  
Constitutive Models ◽  
Experimental Tests ◽  
Numerical Calculations ◽  
Diaphragm Wall ◽  
Construction Site ◽  
Wall Model ◽  
City Area ◽  
Clay Formation ◽  
Horizontal Displacements

Abstract The paper presents results of numerical calculations of a diaphragm wall model executed in Poznań clay formation. Two selected FEM codes were applied, Plaxis and Abaqus. Geological description of Poznań clay formation in Poland as well as geotechnical conditions on construction site in Warsaw city area were presented. The constitutive models of clay implemented both in Plaxis and Abaqus were discussed. The parameters of the Poznań clay constitutive models were assumed based on authors’ experimental tests. The results of numerical analysis were compared taking into account the measured values of horizontal displacements.

scholarly journals Numerical analysis of settlement of a high-rise building using two constitutive soil models

2019 ◽  
Vol 262 ◽  
pp. 04002
Author(s):  
Leszek Chomacki
Keyword(s):  
Numerical Analysis ◽  
Constitutive Models ◽  
Soil Parameters ◽  
Geotechnical Parameters ◽  
High Rise ◽  
High Rise Building ◽  
Perfectly Plastic ◽  
Calculation Process ◽  
Elastic Perfectly Plastic ◽  
Key Parameter

One of the basic roles of foundations is to safely transfer loads from the structure to the subsoil in a controlled manner. Often a key parameter in deciding whether the foundation was designed correctly is the value of settlement of the building and the ground around it. This paper attempts to numerically reproduce the measured settlement of a high-rise building using geotechnical parameters already available. For this purpose, numerical calculations were carried out using two constitutive soil models: the elastic-perfectly plastic model with Mohr-Coulomb plastic criteria (MC) model and the Hardening Soil (HS) model. The resulting settlement values were compared with surveying measurements taken during and after the building’s construction. In the summary the results obtained with the use of different constitutive models, the calculation process and the adopted soil parameters are analysed and discussed.

scholarly journals NUMERICAL ANALYSIS OF CO2 TRANSIENT BEHAVIOR IN THE GAS COOLER DURING VARIABLE START-UP CONDITIONS OF A TRANSCRITICAL REFRIGERATION SYSTEM

2019 ◽  
Vol 18 (3) ◽  
pp. 1101-1118
Author(s):  
J.F. Ituna-Yudonago ◽  
◽  
J.M. Belman-Flores ◽  
F. Elizalde-Blancas ◽  
V. Pérez-García ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Transient Behavior ◽  
Refrigeration System ◽  
Start Up
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