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Novel in situ device for investigating the tensile and fatigue behaviors of bulk materials
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10.1063/1.4798545
/content/aip/journal/rsi/84/4/10.1063/1.4798545
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/4/10.1063/1.4798545

Figures

Image of FIG. 1.
FIG. 1.

(a) Prototype of the proposed device with (b) a novel grip design and (c) illustration of the specimen's dimensions.

Image of FIG. 2.
FIG. 2.

Model of the fatigue actuator.

Image of FIG. 3.
FIG. 3.

Tests of stiffness coefficients K i of the load sensor, base, and grippers by using the laser sensor (LK-G10).

Image of FIG. 4.
FIG. 4.

Comparison results between the raw curve and the reference curve of A570 Gr. 33 steel.

Image of FIG. 5.
FIG. 5.

Schematic diagram of the fatigue test system integrating the temperature probes.

Image of FIG. 6.
FIG. 6.

Temperature rise of the specimen and piezoelectric stack as a function of test frequency.

Image of FIG. 7.
FIG. 7.

Constitute system for testing the output characteristics of the fatigue actuator.

Image of FIG. 8.
FIG. 8.

Alternating motion performance of the fatigue actuator based on various initial voltages.

Image of FIG. 9.
FIG. 9.

Hysteresis tests of the fatigue actuator based on static and dynamic voltages.

Image of FIG. 10.
FIG. 10.

Schematic for calculating the effective stroke of the fatigue actuator.

Image of FIG. 11.
FIG. 11.

Displacement responses of the fatigue actuator based on various excitation frequencies.

Image of FIG. 12.
FIG. 12.

Voltage attenuation of the piezoelectric stack based on various initial voltages.

Image of FIG. 13.
FIG. 13.

Tensile fatigue stress response of C11000 copper at various deformation stages.

Image of FIG. 14.
FIG. 14.

Tensile stress relaxation curves at various deformation stages.

Tables

Generic image for table
Table I.

Parameters comparison results of A570 Gr. 33 steel between the commercial instrument and the self-made device.

Generic image for table
Table II.

Alloy composition (wt. %) of C11000 copper determined by atomic absorption spectroscopy.

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/content/aip/journal/rsi/84/4/10.1063/1.4798545
2013-04-04
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Novel in situ device for investigating the tensile and fatigue behaviors of bulk materials
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/4/10.1063/1.4798545
10.1063/1.4798545
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