A true 3D frictional hardening elastoplastic constitutive model of concrete based on a unified hardening/softening function

2018 ◽  
Vol 119 ◽  
pp. 250-273 ◽  
Author(s):  
Guosheng Wang ◽  
Dechun Lu ◽  
Xiuli Du ◽  
Xin Zhou ◽  
Shengtao Cao
Keyword(s):  
Constitutive Model ◽  
Softening Function ◽  
Elastoplastic Constitutive Model ◽  
Frictional Hardening

Methods of Swanson Constitutive Model Establishment for Composite Solid Propellant

2014 ◽  
Vol 496-500 ◽  
pp. 476-480
Author(s):  
Chao Ning ◽  
Hong Fu Qiang ◽  
Guang Wang
Keyword(s):  
Constitutive Model ◽  
Solid Propellant ◽  
Correction Function ◽  
Uniaxial Tensile ◽  
Softening Function ◽  
Composite Solid Propellant ◽  
Different Temperatures ◽  
Tensile Data ◽  
Composite Solid ◽  
Good Agreement

Establishing Swanson constitutive model is discussed for composite solid propellant, which focused on the calculation of strain softening function and change strain rate correction function within the model. Prediction results of Swanson constitutive model are in good agreement degrees with the test of 24 groups uniaxial tensile data of composite solid propellant at different temperatures and extension rates. It proves the model is effective and available.

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