Lightweight Stiffened Panels Fabricated Using Emerging Fabrication Technologies: Fatigue Behaviour

Moreira, Pedro; Richter-Trummer, Valentin; Castro, P.M.S.T. de

doi:10.1007/8611_2010_49

Cited by 6 publications

(9 citation statements)

References 25 publications

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“…Strain gages were placed only on the advancing side, assuming an approximate symmetry of the stress field according to previous work. 19 Since the results did not show significant differences between the residual stresses' behaviour, the incremental hole drilling method was applied to the advancing side of the second sample at seven locations. The ASTM standardised procedure E837 was used to determine the stresses.…”

Section: Methodsmentioning

confidence: 99%

Friction stir welding of T-joints with dissimilar aluminium alloys: Mechanical joint characterisation

Tavares

Castro

Richter-Trummer

et al. 2010

Science and Technology of Welding and Joining

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Friction stir welding (FSW) is a high reliability joining process creating excellent opportunities for new design concepts. This paper discusses T-joints composed by dissimilar aluminium alloys, a configuration suitable for reinforced panels where the skin is made of an aluminium alloy with higher toughness, and the web (reinforcement or stiffener) is made of a higher strength aluminium alloy, creating a good damage tolerant arrangement. A T-joint configuration was proposed nonincluding overlap interfaces between the workpieces. This T-joint also promotes a good flow among the materials of the different workpieces during the FSW process resulting in sound welds. Mechanical properties were measured achieving high efficiency values of joint static and dynamic strenght but with the drawback of the loss of elongation. Microstructural analyses of the weld zone were performed, and the results were compared with those of base materials and FSW butt joints evidencing the possibility of joining two dissimilar aluminium alloys in a T configuration. Additionally, the residual stress field, which is an important parameter for a more reliable design of integral structures, was evaluated with a semidestructive and a destructive method. The feasibility to weld T-joints with dissimilar aluminium alloys was demonstrated achieving good quality results, which can be used for structure reinforcement and optimisation.

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Section: Methodsmentioning

confidence: 99%

Friction stir welding of T-joints with dissimilar aluminium alloys: Mechanical joint characterisation

Tavares

Castro

Richter-Trummer

et al. 2010

Science and Technology of Welding and Joining

Self Cite

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“…Stiffened panel fabrication processes are complicated and mainly include welding, riveting, or machining methods [2]. These conventional fabrications are not free from defects, such as less strength in the heat-affected zone (HAZ) due to welding [3], weight increase due to bolts in riveting [4], or much materials waste due to machining [5]. Therefore, developing a fabrication method to produce an integral thin-wide aluminium stiffened panel that avoids the above shortcomings has become highly demanded in industry.…”

Section: Introductionmentioning

confidence: 99%

Development and perspectives of rolling of rib stiffened plate

Alfawzan

Shi

Lin

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Thin-wide aluminium rib stiffened plate structure reduces the weight and provides high stiffness, which makes it in high demand in transportation vehicles, marine, and structural applications for energy saving and CO2 emission reduction. In this study, the applicability of rolling in manufacturing an integral rib stiffened plate is reviewed through analysis of different rolling processes. The effect of rolling parameters and rib geometry on the formation and quality of ribs are analysed. The analysis provides an important basis to advance the understanding of metal flow, viscoplastic deformation and roll shape design during rolling, significantly helping the design of an innovative rolling process for rib stiffened plate. In addition, geometry and rolling parameters, plate curvature, and roll pass design (RPD), that highly affect the rolling process design are discussed. This paper presents the limitations and improvements of specific shape rolling processes and preliminarily concludes that rolling could be a potential method to produce high quality thin-wide panels with high stiffeners.

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“…A typical application of HWMP is to fabricate stiffened panels, which have wide applications in aviation, aerospace, and automotive industries, etc., due to the advantages of light-weight and strong load-bearing capability, as shown in Figure 1a,b [20]. Generally, a stiffened panel can be fabricated either by joining the stiffeners to a thin plate via fasteners (rivets or bolts, see Figure 1c) and welding (friction stir welding or laser beam welding, see Figure 1d), or by machining from a thick plate (see Figure 1e).…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Optimization of a Hybrid Manufacturing Process Combining Wire Arc Additive Manufacturing with Milling for the Fabrication of Stiffened Panels

Chen

Shi

et al. 2017

Applied Sciences

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Lightweight Stiffened Panels Fabricated Using Emerging Fabrication Technologies: Fatigue Behaviour

Cited by 6 publications

References 25 publications

Friction stir welding of T-joints with dissimilar aluminium alloys: Mechanical joint characterisation

Friction stir welding of T-joints with dissimilar aluminium alloys: Mechanical joint characterisation

Development and perspectives of rolling of rib stiffened plate

Evaluation and Optimization of a Hybrid Manufacturing Process Combining Wire Arc Additive Manufacturing with Milling for the Fabrication of Stiffened Panels

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