High cycle fatigue of AA6082 and AA6063 aluminum extrusions

Nanninga, Nicholas E.

doi:10.37099/mtu.dc.etds/18

Cited by 8 publications

(6 citation statements)

References 55 publications

(102 reference statements)

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“…A Wöhler diagram was drawn as shown in Figure 9, in line with the data obtained from the designed rotational bending fatigue test device. In his book published by Nanninga (2008) and in the light of other studies in the literature, it was found that the average fatigue limit of AA 6063 Aluminum alloy is 70 ± 10 MPa and that it does not fail up to 107 cycles below this (Nanninga, 2008). As a result, the fatigue limit value/life value in AA 6063 Aluminum alloys obtained from hysteresis loops at different strain amplitudes is consistent with the results reported in the literature, and the cause-effect relationship has been reported by various researchers.…”

Section: Aa 6063 Aluminum Alloy Testing On Rotary Bending Fatigue Devicementioning

confidence: 99%

Design and manufacturing of rotating bending fatigue test machine

Çipil,

Karabudak,

Zamanlou

2024

EJRnD

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Fatigue strength is an important criterion for all materials used. In the past years, it has been observed that materials cannot carry the loads they carry statically under service conditions. This situation is explained by the phenomenon of "cyclic loading" in the literature. Cyclic loadings cause damage by creating a crack in the surface of the material or by exploiting an existing discontinuity. There are many test methods and devices for determining fatigue strength. All of these are based on the repetition of a certain load in different ways. Among the tests applied, the least costly and simplest method is the rotating bending fatigue test. In this study, a rotating bending fatigue test device was designed and manufactured. Fatigue life of AA 6063 aluminum alloys, which were prepared according to the fatigue test sample standards and with specific properties, were subjected to fatigue test and calculated.

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Section: Aa 6063 Aluminum Alloy Testing On Rotary Bending Fatigue Devicementioning

confidence: 99%

Design and manufacturing of rotating bending fatigue test machine

Çipil,

Karabudak,

Zamanlou

2024

EJRnD

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“…The Corrosion resistance for anodized samples in gallic-sulfuric Solution with 10 mA-cm -2 was less than that of anodized Samples in sulfuric acid. Also it was noted that corrosion resistances of anodized samples with gallic-sulfuric solution will decrease with increasing the adonization current density [2,3].…”

Section: % For Ucrhs Samples Respectively It Was Concluded That the L...mentioning

confidence: 99%

Using modern concepts in the design of extrusion dies to improve the mechanical extrusion and fatigue properties for AA1100

Al-Mushehdany

Yahya

Hmood³

et al. 2022

EEJET

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In this research work a direct extrusion unit has been designed and manufactured for circular section using the theoretical die design concepts for designing of the die profile, as constancy of the ratio of successive generalized homogeneous strain increment (CRHS). This was carried out by studying the final mechanical properties of the direct extruded products through dies with theoretical concept (ACRHS) and (UCRHS). Commercial alloy AA1100 round section billets was subjected to uniform extruded compressive load using two types of extrusion dies i.e. (ACRHS) and (UCRHS) at room temperature. The product of these dies with as received were conducted to testing under tensile and fatigue tests without corrosion and with corrosion of 90 days fully submersed in 0.35 % NaСl solution. The experimental results show that the reduction percentage (RP) in the main mechanical properties, UTS, YS and BHN due to corrosion were 14.28 %, 5.88 % and 12.12 % for as received samples, 2.74 %, 5.08 % and 6.12 % for the ACRHS samples and 7.79 %, 6.86 % and 8.88 % for UCRHS samples respectively. It was concluded that the less reduction percentage was occurred in the ACRHS samples compared to other samples. Corrosion fatigue testing of the above three samples were made and compared to the same samples without corrosion. The testing results revealed that the corrosion is significantly reduce the fatigue strength at 107 cycles from 40 to 33.65 MPa for as received samples, from 49.47 to 46.73 for ACRHS samples and from 49.5 to 45.89 MPa for UCRHS samples. The results may be lead to the best mechanical and fatigue properties under corrosion action are the ACRHS samples. The obtained results show that the extrusion die (ACRHS) is the most efficient die design

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“…Fatigue progresses sequentially in three phases from initiation, growth, and finally to fracture. The fatigue strength of materials depends on many factors such as loads, number of loading cycles, surface conditions, geometric features, and temperatures [17,19]. Fatigue damages are measured by three criteria: strain-life, stresslife, and linear-elastic fracture mechanics (LEFM).…”

Section: Criteria For Fatigue Damage Failurementioning

confidence: 99%

“…Aluminum alloys have an excellent weight-to-strength ratio and good manufactura bility, which are ideal for robotic components [19]. For example, 6XXX aluminum alloy ha a good balance of ductility and fatigue strength [28].…”

Section: Aluminum Alloys As Substratesmentioning

confidence: 99%

Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation

Kang

Ouyang

2021

Actuators

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Actuators are essential components for motion in machines, and warranty service lives are basic specifications of actuators. However, fatigue damage or wear of actuators are very complex and related to many design factors, such as materials properties, surface conditions, loads, and operating temperature. Actuator manufacturers still rely heavily on physical experiments to determine the fatigue lives of actuators. This paper investigates the state-of-the-art of using numerical simulations for fatigue analysis of mechanical actuators. Failure criteria of machine elements are discussed extensively; existing works on using finite element methods for machine element designs are examined to (1) explore the feasibility of using a numerical simulation for fatigue analysis and (2) discuss the technical challenges in practice. Moreover, a systematic procedure is suggested to predict fatigue lives of mechanical actuators with Teflon impregnated hard coatings. A virtual fatigue analysis allows for optimizing a mechanical structure, reducing design verification costs, and shortening the development time of actuators.

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High cycle fatigue of AA6082 and AA6063 aluminum extrusions

Cited by 8 publications

References 55 publications

Design and manufacturing of rotating bending fatigue test machine

Design and manufacturing of rotating bending fatigue test machine

Using modern concepts in the design of extrusion dies to improve the mechanical extrusion and fatigue properties for AA1100

Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation

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