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.

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.

Failure Properties of Adhesive Joints With Adhesively Filled Columns

2003 ◽  
Author(s):  
Jiemin Liu ◽  
Toshiyuki Sawa
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Experimental Method ◽  
Failure Process ◽  
Adhesive Joints ◽  
Lateral Bending ◽  
Failure Properties ◽  
Bending Loads ◽  
External Loads ◽  
Element Method

Failure properties of bulk adhesive joints with Adhesively Filled Columns (AFCs) subjected to external loads were investigated by experimental method and finite element method (FEM). From the experiment results, it was found that the strengths of the bulk adhesive joints with AFCs increases considerably whether they are subjected to external tensile loads or lateral bending loads. And the joint strenghts increase with increasing of the depths of the blind holes. Failure process of the joints with AFCs was simulated by element birth-death technology developed in FEM. The conclusions obtained from FEM coincide with that obtained from the experiments.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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