Linking Riveting Process Parameters to the Fatigue Performance of Riveted Aircraft Structures

2000 ◽  
Vol 37 (1) ◽  
pp. 130-137 ◽  
Author(s):  
M. P. Szolwinski ◽  
T. N. Farris
Keyword(s):  
Process Parameters ◽  
Fatigue Performance ◽  
Aircraft Structures ◽  
Riveting Process

Numerical Simulation of Riveting Process

2010 ◽  
Vol 34-35 ◽  
pp. 641-645
Author(s):  
Hong Shuang Zhang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Process Parameters ◽  
Static Method ◽  
Riveting Process ◽  
Relationship Of ◽  
The Relationship ◽  
Element Method

In order to fully understanding the distribution of residual stress after riveting and the relationship between residual stress and riveting process parameters during riveting, Finite Element Method was used to establish a riveting model. Quasi-static method to solve the convergence difficulties was adopted in riveting process. The riveting process was divided into six stages according to the stress versus time curves. The relationship of residual stress with rivet length and rivet hole clearance were established. The results show numerical simulation is effective for riveting process and can make a construction for the practical riveting.

Optimize Additive Manufacturing Post-Build Heat Treatment and Hot Iso-Static Pressing Process Using an Integrated Computational Materials Engineering Framework

2018 ◽  
Author(s):  
Anahita Imanian ◽  
Kelvin Leung ◽  
Nagaraja Iyyer ◽  
Peipei Li ◽  
Derek H. Warner
Keyword(s):  
Heat Treatment ◽  
Additive Manufacturing ◽  
Process Parameters ◽  
Fatigue Performance ◽  
Optimization Approach ◽  
Materials Engineering ◽  
Integrated Computational Materials Engineering ◽  
Computational Materials ◽  
Static Pressing ◽  
Hip Process

Additive manufacturing (AM) technology is becoming more popular for the fabrication of 3D metal products as it offers rapid prototyping and large design freedom. However, part quality and fatigue performance of components fabricated by current AM technology are not comparable to that produced by traditional methods. Post-build processing techniques, such as heat treatment (HT) and Hot Iso-static Pressing (HIP), have been developed to improve microstructure and remove internal flaws that are detrimental to fatigue resistance. In order to simulate the HT and HIP process and optimize the post-build process, an integrated computational materials engineering (ICME) approach is utilized to link the process parameters with material’s structures, properties, and fatigue performance. The purpose of this study is two-fold. First, we simulate the HT/HIP process including the physics of heat transfer, and porosity evolution. Second, a state-of-the-art hybrid optimization approach, combining response surface method and genetic algorithm is utilized to optimize the post-build process parameters in order to minimize porosities.

scholarly journals Influence of rivet length on joint formation on self-piercing riveting process considering further process parameters

2021 ◽  
Author(s):  
Fabian Kappe ◽  
Christian Roman Bielak ◽  
Vadim Sartisson ◽  
Mathias Bobbert ◽  
Gerson Meschut
Keyword(s):  
Process Parameters ◽  
Automotive Industry ◽  
Raw Materials ◽  
Numerical Study ◽  
Research Work ◽  
High Load ◽  
Continuous Increase ◽  
Wide Range ◽  
Riveting Process ◽  
The Individual

Driven by the CO2-emission law by the European government and the increasing costs for raw materials as well as energy, the automotive industry is increasingly using multi-material constructions. This leads to a continuous increase in the use of mechanical joining techniques and especially the self-piercing riveting is of particular importance. The reason for this is the wide range of joining possibilities as well as the high load-bearing capacities of the joints. To be able to react to changing boundary conditions, like material thickness or strength variation of the sheets, research work is crucial with regard to the increase of versatility. In this paper, a numerical study of the influences on the selfpiercing riveting process is presented. For this purpose, the influence of different process parameters such as rivet length and die depth on various quality-relevant characteristics were investigated. With the help of the design of experiment, significant influences were determined and interactions between the individual parameters are shown.

scholarly journals Effect of Riveting Angle and Direction on Fatigue Performance of Riveted Lap Joints

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 236
Author(s):  
Qingxiao Liang ◽  
Tianpeng Zhang ◽  
Chunrun Zhu ◽  
Yunbo Bi
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Fatigue Tests ◽  
Lap Joints ◽  
Fatigue Performance ◽  
Riveting Process ◽  
Three Dimensional Finite Element

Riveting is the most commonly used connection method in aircraft assembly, and its quality has a crucial effect on the fatigue performance of aircraft. Many factors affect the riveting quality, among which the influence of the riveting angle and direction is not clear. In this paper, a three-dimensional finite element model of single-rivet lap joints is established and verified by the driven head geometry and the riveting force data obtained from the riveting experiments. Then, by adjusting the angle and direction of the punch in the finite element model, the riveting process is simulated at the angles of 0°, 1°, 2°, and 3° and the directions of 0° and 180° to investigate the deformation of the lap joints, the stress distribution around the hole, and the stress distribution of the rivet. Finally, the fatigue tests of the single-rivet lap joints are performed and the influence of the riveting angle and direction on the connection quality and fatigue performance of the riveting joints is analyzed.

scholarly journals An Integrated Approach to the Determination and Consequences of Residual Stress on the Fatigue Performance of Welded Aircraft Structures

2006 ◽  
Vol 3 (2) ◽  
pp. 12547 ◽  
Author(s):  
SW Dean ◽  
L Edwards ◽  
ME Fitzpatrick ◽  
PE Irving ◽  
I Sinclair ◽  
...  
Keyword(s):  
Residual Stress ◽  
Integrated Approach ◽  
Fatigue Performance ◽  
Aircraft Structures
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