Elastic-plastic bending properties of an AZ31B magnesium alloy based on persistent tensile preloads

Ma, Zhichao; Zhao, Hongwei; Zhou, Mingxing; Cheng, Hongbing; Xiao-xi, MA; Du, Xijie; Liu, Ren

doi:10.1016/j.jallcom.2017.03.038

Cited by 15 publications

(3 citation statements)

References 28 publications

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“…The initial rectangular gap between spaced biomimetic claws applicable for the thermal expansion was 100 μm. Furthermore, as shown in Figure 3c, on the basis of equivalent PZT elongation of 20 μm, the finite element analysis (by using Abaqus CAE 2016 version and strain hardening exponent law (σ = Aε n ) 36 with scale factor A of 1099.4 MPa and stain-hardening coefficient n of 0.061 ( 36)) indicated a maximum displacement of 15.2 μm at the biomimetic claw's tip (Figure 3d) and a maximum von-Mises stress of 64.1 MPa at the thin-wall bending hinge, which was significantly lower than the allowable stress of 432 MPa and fatigue limit σ −1 of 430 MPa of 1065 manganese steel. 37 With regard to the mounting method of the ceramic heating tubes to eliminate gap, the ceramic tubes were enveloped with copper foil with thickness of 10 μm.…”

Section: Resultsmentioning

confidence: 99%

Piezoelectric-Thermal Coupling Driven Biomimetic Stick–Slip Bidirectional Rotary Actuator for Nanomanipulation

Xiong

et al. 2021

Nano Lett.

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Substantial improvement of rotation driving accuracy is urgently needed and facing challenges. Miniature bidirectional rotary actuators with high-precision and controllable fallback rate require novel driving principles. Here, on the basis of a proposed biomimetic stick–slip motion principle, a novel piezoelectric-thermal coupling bidirectional rotary actuator was developed. The integrated mantis grasping leglike biomimetic claws and heating rods could realize the clockwise macroscopic rotation and anticlockwise macroscopic fallback of a cylindrical rotator, generated by piezoelectric stick–slip and thermal expansion, respectively. The rotation fallback was effectively inhibited at relatively lower frequencies and higher voltages, as a slight fallback rate of 0.095 was confirmed in term of 0.5 Hz and 80 V. An extraordinary piezoelectric-driven macroscopic rotation resolution of 0.2 μrad and thermal-induced microscopic resolution of 0.00073°/°C were experimentally revealed with the aid of real-time observation of the clockwise slow sticking and anticlockwise instantaneous slipping processes by using three-dimensional optical imaging.

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Section: Resultsmentioning

confidence: 99%

Piezoelectric-Thermal Coupling Driven Biomimetic Stick–Slip Bidirectional Rotary Actuator for Nanomanipulation

Xiong

et al. 2021

Nano Lett.

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“…e flexural load-extrusion response of A3 steel, load values increase linearly in the elastic region. Maximum stress occurs at the mid span in three-point bending configuration [27]. Above the maximum stress, the steel plate gets rapture and failure occurs.…”

Section: Flexural Strength Analysismentioning

confidence: 99%

Investigation of Bending, Sound Absorption, and Damping Properties of AZ91D‐Swivel Plate

Annamalai¹,

Periyakgoundar²,

Paramasivam³

et al. 2020

Advances in Materials Science and Engineering

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A comparison was made between Mg alloy and A3 steel on weight, bending, sound absorption, and vibration conditions. In this study, a swivel plate, which is used in rotating car seats, is to be taken into consideration for finding bending, natural frequency, and frequency under static loading conditions. The swivel plate is generally made up of A3 steel plate; instead, we have replaced that with Mg alloy (AZ91D) plate. Stiffness, flexural strength, natural frequency, frequency under different static loading conditions, and sound absorption capacity were obtained through experimental methods. Finally, it was concluded that the damping capacity of Mg alloy of swivel plate is higher, has better stiffness, and incurred weight reduction by 26.58% less than that of the A3 steel. Also, the Mg alloy material exhibits better specific flexural strength, and specific flexural modulus and sound absorption coefficient are 11.76% and 25% higher than those of A3 steel at higher frequency level (2000 Hz) and at lower frequency level (100 Hz).

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“…However, from the perspective of engineering applications, Mg alloy structures are frequently simultaneously subjected to two or more numbers of different kinds of load, rather than a single load. Z. Ma et al 25 investigated the elastic-plastic bending properties of the AZ31b-Mg alloy using the combined load method, and finally concluded that the Mg alloy could reach a maximum deflection under different loading condition.…”

Section: Introductionmentioning

confidence: 99%

Magnesium alloys: a review of applications

Annamalai¹,

Periyakgoundar²,

Gunasekaran³

2019

Mater. Tehnol.

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Reducing the weight of a vehicle is an important factor in fuel economy, addressing basic requirements and customer needs. Magnesium alloys are promising for automotive, aerospace and medical applications, because of their low density and very good strength, as well as high bio-compatibility. However, many technical and commercial reasons limit their usage and applications in automobile components, particularly their low stiffness and poor corrosion performance. Following a brief review of the latest trends in the utilization of magnesium alloys in the automobile industry, this paper describes all the other difficulties when using magnesium alloys. A discussion of the manufacturing process, increasing the anti-corrosion properties, the application of Mg alloys based on a FE analysis and cost is presented. This review leads to the specific development and better utilization of magnesium alloys.

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Elastic-plastic bending properties of an AZ31B magnesium alloy based on persistent tensile preloads

Cited by 15 publications

References 28 publications

Piezoelectric-Thermal Coupling Driven Biomimetic Stick–Slip Bidirectional Rotary Actuator for Nanomanipulation

Piezoelectric-Thermal Coupling Driven Biomimetic Stick–Slip Bidirectional Rotary Actuator for Nanomanipulation

Investigation of Bending, Sound Absorption, and Damping Properties of AZ91D‐Swivel Plate

Magnesium alloys: a review of applications

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