An adaptive coupling method of state-based peridynamics theory and finite element method for modeling progressive failure process in cohesive materials

2020 ◽  
Vol 370 ◽  
pp. 113248
Author(s):  
Yue Tong ◽  
Wan-Qing Shen ◽  
Jian-Fu Shao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Progressive Failure ◽  
Failure Process ◽  
Coupling Method ◽  
Adaptive Coupling ◽  
Cohesive Materials ◽  
Element Method

Failure Analysis of a Composite Frangible Cover Based on Transient Dynamics

2013 ◽  
Vol 395-396 ◽  
pp. 55-59 ◽  
Author(s):  
Wei Zeng ◽  
Yi Jiang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Failure Analysis ◽  
Failure Process ◽  
Transient Dynamics ◽  
Bonding Layer ◽  
The Finite Element Method ◽  
Failure Pressure ◽  
Element Method

The failure analysis of a fly through frangible canister cover is studied based on transient dynamics via the finite element method. The cover, which is fabricated with five plan-liked parts, is cohesively bonded together forming several weak paths. Five test specimens are designed according to the length of bonded fiber cloth. The cover is subjected to an impulsive blast and the failure process is obtained and analyzed. The failure pressure and time are determined at different cloth length. The result shows that the failure pressure and the corresponding time rise as the length of bonding layer increases.

Yumokjeong Landslide: an investigation of progressive failure of a hillslope using the finite element method

Landslides ◽  
2015 ◽  
Vol 12 (5) ◽  
pp. 997-1005 ◽  
Author(s):  
Ben Leshchinsky ◽  
Farshid Vahedifard ◽  
Ho-Bon Koo ◽  
Seung-Hyun Kim
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Progressive Failure ◽  
The Finite Element Method ◽  
Element Method

Unloading Behavior Study on FRP-Concrete Interface under an Exponential Softening Law

2013 ◽  
Vol 774-776 ◽  
pp. 493-498
Author(s):  
San Xing Liu ◽  
Hong Yuan ◽  
Jun Han
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Failure Process ◽  
Interfacial Failure ◽  
Behavior Study ◽  
Occurrence Mechanism ◽  
Concrete Interface ◽  
Element Method

Loading behavior studies on FRP-concrete interface are refined enough. Because of the complexity of the problem, there exist relatively few unloading behavior studies. Occurrence mechanism of unloading needs to be clarified. Through a combination of theory and finite element method, this paper studied the unloading behavior involved in interfacial failure process under an exponential softening law, clarified when and where unloading occurred and estimated the effect of unloading.

Study on Impedance Calculation of Viscoelastic Material in Acoustic Tube

2013 ◽  
Vol 652-654 ◽  
pp. 1420-1426
Author(s):  
Zhong Kun Jin ◽  
Tong Qing Wang ◽  
Ming Sui Yang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Acoustic Field ◽  
Viscoelastic Material ◽  
Acoustic Impedance ◽  
Coupling Method ◽  
Fluid Structure ◽  
Calculation Results ◽  
Impedance Calculation ◽  
Element Method

The validated finite element method (FEM) was applied to the calculation of local impedance of viscoelastic sample in the acoustic tube. The acoustic impedance of viscoelastic material was calculated by three methods on the basis of numerical acoustic field computed by fluid-structure coupling method and the structure itself. The comparisons of calculation results illustrate that acoustic impedance is the inherent attribute of material.

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