scholarly journals SIMULATION OF THE BEHAVIOR OF TITANIUM-ALUMINUM COMPOSITE WITH WAVE PROFILE OF WELDED JOINT

2021 ◽  
pp. 37-42
Author(s):  
L. M. Gurevich ◽  
V. F. Danenko ◽  
V. Abo-Shakra
Keyword(s):  
Finite Element ◽  
Aluminum Alloy ◽  
Welded Joint ◽  
Tensile Deformation ◽  
Wave Profile ◽  
Relative Thickness ◽  
Aluminum Composite ◽  
Active Deformation ◽  
Element Simulation ◽  
Titanium Aluminum

The finite element simulation of tensile deformation of titanium-aluminum composite D20 - AD1 - VT6S was carried out. The composite had a wave profile of the welded joint at the boundaries D20 - AD1 and AD1 -VT6S. The thickness of the AD1 interlayer was varied in the simulation from 0.25 to 4 mm. The relative thickness of the interlayer corresponding to the onset of active deformation of the aluminum alloy has been determined.

scholarly journals INFLUENCE OF THE PARAMETERS OF THE WAVE PROFILE OF THE JOINT BOUNDARY OF TITANIUM-ALUMINUM COMPOSITE LAYERS ON STRESS BEHAVIOR

2021 ◽  
pp. 48-54
Author(s):  
L. M. Gurevich ◽  
V. F. Danenko ◽  
S. P. Pisarev
Keyword(s):  
Plastic Deformation ◽  
Welded Joint ◽  
Tensile Deformation ◽  
Wave Profile ◽  
Relative Thickness ◽  
Soft Layer ◽  
Aluminum Composite ◽  
Free Surfaces ◽  
Composite Layers ◽  
Titanium Aluminum

Simulation by the finite element of tensile deformation of the titanium-aluminum composite D20 - AD1 - VT6S was carried out. The relative thickness of the soft layer AD1 was constant, and the parameters of the wave profile of the welded joint varied. An increase in the ratio of the amplitude to the step of the wave up to 0.5 leads to an increase in effort by 4-5%. It was compared with the force in a specimen with a flat boundary at comparable stretches. Plastic deformation is localized mainly near free surfaces.

scholarly journals Tensile modeling of titanium-aluminum composite with a wave profile of a welded joint and local melts

2021 ◽  
Vol 1901 (1) ◽  
pp. 012087
Author(s):  
L M Gurevich ◽  
V F Danenko ◽  
D V Pronichev ◽  
S P Pisarev
Keyword(s):  
Welded Joint ◽  
Wave Profile ◽  
Aluminum Composite ◽  
Titanium Aluminum

scholarly journals Modeling and Optimization of Bidirectional Clamping Forces in Drilling of Stacked Aluminum Alloy Plates

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2866
Author(s):  
Jintong Liu ◽  
Anan Zhao ◽  
Piao Wan ◽  
Huiyue Dong ◽  
Yunbo Bi
Keyword(s):  
Mathematical Model ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Clamping Force ◽  
Practical Application ◽  
Element Simulation ◽  
Theory Of Plates ◽  
Plates And Shells ◽  
The Mathematical Model ◽  
The Relationship

Interlayer burrs formation during drilling of stacked plates is a common problem in the field of aircraft assembly. Burrs elimination requires extra deburring operations which is time-consuming and costly. An effective way to inhibit interlayer burrs is to reduce the interlayer gap by preloading clamping force. In this paper, based on the theory of plates and shells, a mathematical model of interlayer gap with bidirectional clamping forces was established. The relationship between the upper and lower clamping forces was investigated when the interlayer gap reaches zero. The optimization of the bidirectional clamping forces was performed to reduce the degree and non-uniformity of the deflections of the stacked plates. Then, the finite element simulation was conducted to verify the mathematical model. Finally, drilling experiments were carried out on 2024-T3 aluminum alloy stacked plates based on the dual-machine-based automatic drilling and riveting system. The experimental results show that the optimized bidirectional clamping forces can significantly reduce the burr heights. The work in this paper enables us to understand the effect of bidirectional clamping forces on the interlayer gap and paves the way for the practical application.

scholarly journals Investigation on tensile deformation and failure for 5052 aluminum alloy based on continuum damage model

2021 ◽  
Vol 2085 (1) ◽  
pp. 012039
Author(s):  
Pengjing Zhao ◽  
Jingpin Jiao ◽  
Gang Fang ◽  
Zhanghua Chen ◽  
Xiang Gao
Keyword(s):  
Finite Element ◽  
Aluminum Alloy ◽  
Damage Mechanics ◽  
Tensile Deformation ◽  
Damage Model ◽  
Inversion Method ◽  
Failure Behavior ◽  
Distribution Law ◽  
Deformation And Failure ◽  
Simulation Results

Abstract A VUMAT user material subroutine for the Lemaitre continuous damage mechanics model was developed based on the finite element solver ABAQUS/Explicit platform to investigate the deformation and failure behavior of 5052 aluminum alloy. The mechanical property parameters and damage parameters of 5052 aluminum alloy were identified by the inversion method combining tensile test and finite element simulation. The numerical simulation results showed that the force-displacement curves predicted by the established damage model were in good agreement with the experimental measurement, and the fracture location was close to the experimental results, which verified the accuracy and effectiveness of the damage parameters. The growth and distribution law of damage variable could be intuitively represented by the simulation results by the Lemaitre damage model.

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