The Effects of Specimen Geometry on the Plastic Deformation of AA 2219-T8 Aluminum Alloy Under Dynamic Impact Loading

2017 ◽  
Vol 26 (12) ◽  
pp. 5837-5846 ◽  
Author(s):  
G. M. Owolabi ◽  
D. T. Bolling ◽  
A. G. Odeshi ◽  
H. A. Whitworth ◽  
N. Yilmaz ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Aluminum Alloy ◽  
Impact Loading ◽  
Specimen Geometry ◽  
Dynamic Impact ◽  
Dynamic Impact Loading

scholarly journals Energy Absorbing Properties Analysis of Layers Structure of Titanium Alloy Ti6Al4V during Dynamic Impact Loading Tests

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7209
Author(s):  
Dominik Głowacki ◽  
Wojciech Moćko ◽  
Michał Marczak ◽  
Anna Głowacka ◽  
Cezary Kraśkiewicz
Keyword(s):  
Plastic Deformation ◽  
Titanium Alloy ◽  
Impact Loading ◽  
Equivalent Plastic Strain ◽  
Stress Triaxiality ◽  
Absorbed Energy ◽  
Dynamic Impact ◽  
Titanium Alloy Ti6al4v ◽  
The Impact ◽  
Dynamic Impact Loading

This paper presents the testing methodology of specimens made of layers of titanium alloy Ti6Al4V in dynamic impact loading conditions. Tests were carried out using a drop-weight impact tower. The test methodology allowed us to record parameters as displacement or force. Based on recorded data, force and absorbed energy curves during plastic deformation and sheet perforation were created. The characteristics of the fractures were also analyzed. The impact test simulation was carried out in the ABAQUS/Explicit environment. Results for one, two, and three layers of titanium alloy were compared. The increase in force required to initialize the damage and the absorbed energy during plastic deformation can be observed with an increase in the number of layers. The increase in absorbed energy is close to linear. In the simulation process, parameters such as Huber–Mises–Hencky stress value, equivalent plastic strain, temperature increase, and stress triaxiality were analyzed.

scholarly journals Failure characteristics of the isolated distal radius in response to dynamic impact loading

2011 ◽  
Vol 30 (6) ◽  
pp. 885-892 ◽  
Author(s):  
Timothy A. Burkhart ◽  
David M. Andrews ◽  
Cynthia E. Dunning
Keyword(s):  
Distal Radius ◽  
Impact Loading ◽  
Dynamic Impact ◽  
Failure Characteristics ◽  
Dynamic Impact Loading

FE investigation of a spirally slotted tube under axially compressive static and dynamic impact loading

2003 ◽  
Vol 8 (5) ◽  
pp. 421-432 ◽  
Author(s):  
K Kormi ◽  
V N Wijayathunga ◽  
D C Webb ◽  
S T S Al-Hassani
Keyword(s):  
Impact Loading ◽  
Dynamic Impact ◽  
Dynamic Impact Loading

scholarly journals 3D Physical Modelling Study of Shield-Strata Interaction under Roof Dynamic Loading Condition

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Shengli Yang ◽  
Hao Yue ◽  
Gaofeng Song ◽  
Junjie Wang ◽  
Yanyao Ma ◽  
...  
Keyword(s):  
Impact Loading ◽  
Loading Condition ◽  
Impact Load ◽  
Physical Modelling ◽  
Coal Face ◽  
Dynamic Impact ◽  
Immediate Roof ◽  
Cutting Height ◽  
The Impact ◽  
Dynamic Impact Loading

The dynamic hazards in the open face area caused by the impact load of the massive strong roof become increasingly severe with the increase in the cutting height of the longwall face and its depth of cover. Understanding the strata-shield interaction under the dynamic impact loading condition may relieve the dynamic hazards. In this paper, a 3D physical modelling platform is developed to study the interaction between the roof strata and the longwall shield under the dynamic impact load conditions. A steel plate is dropped to the coal face wall at a certain height above the immediate roof to simulate the free fall of the main roof and the dynamic impact loading environment. The occurrence of major roof falls is modelled at different height above the model and at different positions relative to the longwall faceline. The large-cutting-height and top-coal-caving mining methods are modelled in the study to include the nature of the immediate roof. The results show that the level of face and roof failures depends on the magnitude of the dynamic impact load. The position and height of the roof fall have an important influence to the stability of the roof and face. The pressures on the shield and the solid coal face are relieved for the top-coal-caving face as compared to the large-cutting-height face.

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