Research on the Failure Criterion of Snow-Ice Constitutive Model

2018 ◽  
Author(s):  
Yaqin Li ◽  
Xinwei Qiu ◽  
Yiyuan Ge ◽  
Junfa Wang ◽  
Siyu Chen
Keyword(s):  
Constitutive Model ◽  
Failure Criterion

Study on Constitutive Model and Failure Criterion of Cord-Rubber Composite

2004 ◽  
Vol 36 (4) ◽  
pp. 351-362 ◽  
Author(s):  
Fengfa Zhang ◽  
Zhihui Fan ◽  
Xingwen Du ◽  
Zhenbang Kuang
Keyword(s):  
Constitutive Model ◽  
Failure Criterion ◽  
Rubber Composite

A Statistical Damage Constitutive Model for Brittle Rocks Based on the Lade-Duncan Failure Criterion

2014 ◽  
Vol 919-921 ◽  
pp. 632-636 ◽  
Author(s):  
Zhen Yuan Tian ◽  
Wei Wang ◽  
Xue Hao Li ◽  
Wei Ya Xu
Keyword(s):  
Constitutive Model ◽  
Failure Criterion ◽  
Elastic Characteristic ◽  
Damage Threshold ◽  
Model Parameters ◽  
Brittle Rocks ◽  
Good Accord ◽  
Damage Constitutive Model ◽  
Statistical Damage Constitutive Model ◽  
Statistical Damage

Micro-unit strength of rock is randomly distributed based on Lemaitres strain equivalence assumptions. The paper presents a method for measuring micro-unit strength taking into account the damage threshold. Assuming that the micro-unit strength obeys the Weibull distribution, combined with the Lade-Duncan failure criterion, a new statistical damage constitutive model for brittle rocks is established and the model parameters m and F0 are determined. The model can simulate the stress-strain relation of full process of rock failure well, especially reflects the influence of different stress on damage threshold and the linear elastic characteristic under low stress for rock. The good accord verifies the validity and feasibility of the new model.

Dynamic Constitutive Model of Concrete

2012 ◽  
Vol 450-451 ◽  
pp. 379-382
Author(s):  
Wei Wu Yang ◽  
Hai Feng Liu ◽  
Jian Guo Ning
Keyword(s):  
Constitutive Model ◽  
Mechanical Behavior ◽  
Failure Criterion ◽  
Impact Loading ◽  
Experimental Results ◽  
Dynamic Mechanical ◽  
Criterion A ◽  
Dynamic Mechanical Behavior ◽  
Model Predictions

Based on the damage and Ottosen failure criterion, a dynamic constitutive model is proposed to investigate the mechanical behavior of concrete subjected to impact loading. The model predictions fit well with experimental results. So it can be used to simulate dynamic mechanical behavior of concrete

Constitutive Model of Saturated Structural Clays Based on SMP Failure Criterion

2012 ◽  
Vol 446-449 ◽  
pp. 1293-1297
Author(s):  
Min Yu
Keyword(s):  
Mechanical Properties ◽  
Constitutive Model ◽  
Failure Criterion ◽  
Predictive Value ◽  
Structural Characteristics ◽  
Structural Parameter ◽  
Stress Strain ◽  
Hardening Model ◽  
New Model ◽  
Strength Based

For normal consolidated or low over consolidated saturated structured clays, a constitutive model of the clay was proposed by introducing a structural parameter d in order to quantitatively describe the change of its deformation and strength based on unified hardening model. Stress-strain and body strain of the clay were predicted by the new model and were measured by K0 consolidated compression and shearing tests. The rationality and feasibility of the new model were proved by comparing the predictive and experimental value. The results show that the model can well describe structural characteristics, deformation and mechanical properties of the saturated structured clays; predictive value of stresses and strains are basically in agreement with experimental ones, and this further proves the rationality and feasibility of the new model.

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