Investigation of Mechanical Behavior of Layered Metal-Rubber Composites Based on Steel and Aluminum Alloy

2021 ◽  
Vol 902 ◽  
pp. 87-94
Author(s):  
Svetlana Kuteneva ◽  
Sergei Gladkovsky ◽  
Pavel Nedzvetsky ◽  
Valeriya Veselova
Keyword(s):  
Aluminum Alloy ◽  
Mechanical Behavior ◽  
Mechanical Tests ◽  
Advanced Materials ◽  
Layered Composites ◽  
Rubber Composites ◽  
Operational Conditions ◽  
Lap Shear ◽  
Intermediate Layers ◽  
Metal Rubber

Metal-polymer composites are advanced materials for the aerospace, automotive and railway industry where details and elements of construction are affected by impact, cyclic and vibration loads. In the present work layered composites based on steel, aluminum alloy and rubber as intermediate layers were obtained by cold and hot bonding using adhesives. Adhesive lap-shear bond strength of layered composites fabricated by various techniques was determined using tensile shear test. To evaluate the mechanical behavior of layered metal-rubber composites under simulated operational conditions static, dynamic and cyclic, three points bending tests were carried out. The results of mechanical tests of these composites indicated that hot bonding is the most preferred fabrication method for the formation of increased mechanical characteristics.

Mechanical Behaviors of Self-Piercing Riveting Joining Dissimilar Sheets

2010 ◽  
Vol 97-101 ◽  
pp. 3932-3935 ◽  
Author(s):  
Zhi Chao Huang ◽  
Ze Jie Zhou ◽  
Wei Huang
Keyword(s):  
Aluminum Alloy ◽  
Mechanical Behavior ◽  
Steel Sheet ◽  
Dissimilar Materials ◽  
Aluminum Sheet ◽  
Mechanical Behaviors ◽  
Dissimilar Metal ◽  
Lap Shear ◽  
Metal Sheets ◽  
Cross Tension

This paper summarizes riveting tests and mechanical behaviors of Self-piercing Riveting (SPR) with semi-tubular rivet joining dissimilar metal sheets. The tests joining 2A12 aluminum sheet and DC01 steel sheet are carried out in lap-shear, coach-peel and cross-tension joint styles. The results show that SPR joining dissimilar materials of steel and aluminum alloy is feasible and riveting joints take on high mechanical behavior.

Microstructure and Mechanical Behavior of Friction-Stir-Welded 2017A-T451 Aluminum Alloy

2019 ◽  
Vol 72 (7) ◽  
pp. 1853-1868 ◽  
Author(s):  
O. Mimouni ◽  
R. Badji ◽  
A. Kouadri-David ◽  
R. Gassaa ◽  
N. Chekroun ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Mechanical Behavior ◽  
Friction Stir

The influence of stacking faults on mechanical behavior of advanced materials

2021 ◽  
Vol 803 ◽  
pp. 140696
Author(s):  
Ruizhe Su ◽  
Dajla Neffati ◽  
Yifan Zhang ◽  
Jaehun Cho ◽  
Jin Li ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Stacking Faults ◽  
Advanced Materials

scholarly journals Preliminary study on the mechanical behavior of friction spot welds

2009 ◽  
Vol 14 (3) ◽  
pp. 238-247 ◽  
Author(s):  
José Antônio Esmerio Mazzaferro ◽  
Tonilson de Souza Rosendo ◽  
Cíntia Cristiane Petry Mazzaferro ◽  
Fabiano Dornelles Ramos ◽  
Marco Antônio Durlo Tier ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Behavior ◽  
Spot Welding ◽  
Mechanical Response ◽  
Analysis Procedure ◽  
Research Centre ◽  
Friction Stir ◽  
Lap Shear ◽  
State Process ◽  
Welding Processes

The Friction Spot Welding - FSpW is a solid-state process that allows joining two or more metal sheets in lap configuration with no residual keyhole as occurs in the Friction Stir Welding - FSW process. The present work reports part of the efforts made at GKSS Research Centre to better understand the complex phenomena that take place during FSpW of aluminum alloys and establish the mechanical response of the resulting joints. Over the recent years the research on modeling friction based welding processes has increased considerably. Most of the works related to this subject deal with the process mechanics. On the other hand, some investigations have shown how the process variables affect the mechanical properties of the joints, but it is very difficult to find quantitative results that can be readily used for mechanical design purposes. The aim of this work is to develop an analysis procedure based on the process characteristics that allows evaluating how the resulting geometry and microstructure affect the joint mechanical behavior. For this, the results of the mechanical tests obtained on AA2024-T3 aluminum alloy were used to calibrate and validate a numerical model that was used to predict the joint failure mode. The model reproduced the specimen geometry and load conditions adopted in the lap-shear and cross-tensile tests. The joint was considered as formed by three main regions (SZ - stir zone, TMAZ - thermo mechanically affected zone and HAZ - heat affected zone) whose properties and dimensions were based in microhardness evaluation and macrographic analysis of welded specimens. It was observed a good agreement between the simulation results and experimental data. The numerical modeling of the joints allows the prediction of the joint mechanical properties, as well as to understand how a change in geometry and property of each region affects the final mechanical behavior. Based in the obtained results, the analysis procedure can be easily extended to the related friction based spot processes as Friction Stir Spot Welding - FSSW.

scholarly journals Microstructure and mechanical properties of an ultrasonic spot welded aluminum alloy: the effect of welding energy

2021 ◽  
Author(s):  
He Peng ◽  
Daolun Chen ◽  
Xianquan Jiang
Keyword(s):  
Shear Strength ◽  
Aluminum Alloy ◽  
Cyclic Loading ◽  
Crack Growth ◽  
Failure Mode ◽  
Spot Welding ◽  
Energy Levels ◽  
Lap Shear Strength ◽  
Pull Out ◽  
Lap Shear

The aim of this study is to evaluate the microstructures, tensile lap shear strength, and fatigue resistance of 6022-T43 aluminum alloy joints welded via a solid-state welding technique–ultrasonic spot welding (USW)–at different energy levels. An ultra-fine necklace-like equiaxed grain structure is observed along the weld line due to the occurrence of dynamic crystallization, with smaller grain sizes at lower levels of welding energy. The tensile lap shear strength, failure energy, and critical stress intensity of the welded joints first increase, reach their maximum values, and then decrease with increasing welding energy. The tensile lap shear failure mode changes from interfacial fracture at lower energy levels, to nugget pull-out at intermediate optimal energy levels, and to transverse through-thickness (TTT) crack growth at higher energy levels. The fatigue life is longer for the joints welded at an energy of 1400 J than 2000 J at higher cyclic loading levels. The fatigue failure mode changes from nugget pull-out to TTT crack growth with decreasing cyclic loading for the joints welded at 1400 J, while TTT crack growth mode remains at all cyclic loading levels for the joints welded at 2000 J. Fatigue crack basically initiates from the nugget edge, and propagates with “river-flow” patterns and characteristic fatigue striations. Keywords: aluminum alloy; ultrasonic spot welding; EBSD; microstructure; tensile strength; fatigue

Effect of silicon carbide particles on the mechanical and plastic properties of the AlMg6/10% SiC metal matrix composite

2018 ◽  
Vol 52 (24) ◽  
pp. 3351-3363 ◽  
Author(s):  
Alexander S Smirnov ◽  
Vladimir P Shveikin ◽  
Evgeniya O Smirnova ◽  
George A Belozerov ◽  
Anatoly V Konovalov ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Aluminum Alloy ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Tensile Tests ◽  
Mechanical Tests ◽  
Plastic Properties ◽  
Initial Yield Stress ◽  
Reinforcing Particles

This work deals with studying the effect of reinforcing SiC particles on the mechanical and plastic properties of a metal matrix composite with a matrix of aluminum alloy AlMg6 (the 1560 aluminum alloy according to the Russian State Standard GOST 4784−97). We assess this effect using the results of mechanical tests at the microscale and macroscale levels. The paper analyzes the fracture mechanism at the microlevel under tensile and compressive stress conditions, as well as the type of contact between the composite constituents. The experimental results obtained for the metal matrix composite are compared with analogous experimental data for the AlMg6 alloy and a compacted material made from the AlMg6 alloy (a compacted powder without addition of SiC reinforcing particles). The studied compacted materials were not previously subjected to extrusion. The tests show a decisive influence of the reinforcing particles on the plastic and mechanical properties of the AlMg6/10% SiC metal matrix composite under compression and tension. For example, the addition of silicon carbide increased the initial yield stress of the compacted material by 26% under tensile tests, and the percentage elongation after fracture was increased up to 1.1%, while it amounted to 0.02% for the compacted material without addition of silicon carbide. Under compression, on the contrary, the addition of silicon carbide degraded plastic properties. As a result, the percentage compression before cracking was 28.4% and 57.9% for the compacted materials with and without addition of silicon carbide, respectively.

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