scholarly journals An Anisotropic Multi-plane Elastic-Damage Model with Axial and Shear Damage and Its Application to Concrete Behavior

2017 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
S.A. Sadrnejad ◽  
M.R. Hoseinzadeh
Keyword(s):  
Damage Model ◽  
Shear Damage ◽  
Elastic Damage

Investigation and prediction of tearing failure during extrusion based on a modified shear damage model

2017 ◽  
Vol 112 ◽  
pp. 28-39 ◽  
Author(s):  
Pengjing Zhao ◽  
Zhanghua Chen ◽  
Chaofang Dong
Keyword(s):  
Damage Model ◽  
Shear Damage

scholarly journals A Multiparameter Damage Constitutive Model for Rock Based on Separation of Tension and Shear

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
YanHui Yuan ◽  
Ming Xiao
Keyword(s):  
Constitutive Model ◽  
Damage Model ◽  
Damage Mechanism ◽  
Internal Variable ◽  
Damage Variable ◽  
Tensor Form ◽  
Shear Damage ◽  
Damage Constitutive Model ◽  
Microscopic Damage ◽  
Elastoplastic Damage

By analysis of the microscopic damage mechanism of rock, a multiparameter elastoplastic damage constitutive model which considers damage mechanism of tension and shear is established. A revised general form of elastoplastic damage model containing damage internal variable of tensor form is derived by considering the hypothesis that damage strain is induced by the degeneration of elastic modulus. With decomposition of plastic strain introduced, the forms of tension damage variable and shear damage variable are derived, based on which effects of tension and shear damage on material’s stiffness and strength are considered simultaneously. Through the utilizing of Zienkiewicz-Pande criterion with tension limit, the specific form of the multiparameter damage model is derived. Numerical experiments show that the established model can simulate damage behavior of rock effectively.

Prediction of Edge Crack in Cold Rolling of Silicon Steel Strip Based on an Extended Gurson–Tvergaard–Needleman Damage Model

2015 ◽  
Vol 137 (2) ◽  
Author(s):  
Quan Sun ◽  
Jianjun Chen ◽  
Hongliang Pan
Keyword(s):  
Cold Rolling ◽  
Edge Crack ◽  
Steel Strip ◽  
Damage Model ◽  
Rolling Process ◽  
Reduction Ratio ◽  
Shear Damage ◽  
Gtn Damage Model ◽  
Edge Cracking ◽  
Roller Radius

Edge cracking is commonly observed in cold rolling process. However, its failure mechanism is far from fully understanding due to the complex stresses and plastic flow conditions of steel strip under the rolling condition. In this paper, an extended Gurson–Tvergaard–Needleman (GTN) damage model coupled with Nahshon–Hutchinson shear damage mechanism was introduced to investigate the damage and fracture behavior of steel strip in cold rolling. The results show that extended GTN damage model is efficient in predicting the occurrence of edge crack in cold rolling, and the prediction is more accurate than that of the original GTN damage model. The edge cracking behavior under various cold rolling process parameters is investigated. It comes to the conclusion that edge crack extension increases with the increase of the reduction ratio, tension and the decrease of the roller radius and friction coefficient. The influence of shear damage becomes more significant in rolling condition with a larger reduction ratio, smaller roller radius, lower friction force, and tension.

scholarly journals Ductile Shear Damage Model for Porous Materials

2014 ◽  
Vol 4 (6) ◽  
Author(s):  
Larbi Siad ◽  
Sophie C. Gangloff ◽  
Frédéric Bohr
Keyword(s):  
Porous Materials ◽  
Damage Model ◽  
Shear Damage ◽  
Ductile Shear

Parameter Identification of a Visco-elastic damage Model for Rubber by Real-coded GA

2014 ◽  
Vol 2014.27 (0) ◽  
pp. 459-460
Author(s):  
Kai Oide ◽  
Masami Sato ◽  
Junji Yoshida ◽  
Toshiyuki Sugiyama
Keyword(s):  
Parameter Identification ◽  
Damage Model ◽  
Elastic Damage

scholarly journals An interface shear damage model of chromium coating/steel substrate under thermal erosion load

2020 ◽  
Author(s):  
Xiao-long Li ◽  
Yong Zang ◽  
Yong Lian ◽  
Min-yu Ma ◽  
Lei Mu ◽  
...  
Keyword(s):  
Steel Substrate ◽  
Damage Model ◽  
Chromium Coating ◽  
Interface Shear ◽  
Shear Damage ◽  
Thermal Erosion
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