scholarly journals A Lever-Type Method of Strain Exposure for Disk F-Shaped Torque Sensor Design

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 541
Author(s):  
Ran Shu ◽  
Zhigang Chu ◽  
Hongyu Shu
Keyword(s):  
Uniaxial Tension ◽  
Deformation Mode ◽  
Strain Gauges ◽  
Basic Design ◽  
Torque Sensor ◽  
Type Method ◽  
Trade Off ◽  
Tension And Compression ◽  
Design Idea ◽  
Robotic Joints

Disk-shaped torque sensors are widely used in robotic joints and wheel driving. However, in terms of conventional spoke-type geometries, there is always a trade-off between sensitivity and stiffness, because their strain exposure depends upon a bending deformation mode which causes strain nonuniformity. This paper presents a lever-type method of strain exposure that performs a uniaxial tension and compression deformation mode to optimize the strain uniformity and improve the trade-off. Moreover, on the basis of this approach, the proposed disk F-shaped torque sensor enjoys has axial thinness, easy installation of strain gauges and flexible customization. The simulation and experimental results have validated the basic design idea.

An anomalous trade-off effect on the properties of smart ortho-functional benzoxazines

2015 ◽  
Vol 6 (13) ◽  
pp. 2541-2550 ◽  
Author(s):  
Kan Zhang ◽  
Hatsuo Ishida
Keyword(s):  
Basic Design ◽  
Design Rules ◽  
Trade Off

A series of ortho-difunctional benzoxazine monomers containing amide, imide and amide–imide groups have been synthesized in order to obtain basic design rules toward preparing higher performance polybenzoxazoles based on smart benzoxazine chemistry.

Possibilities for calculating the stress state of rocks during their uniaxial tension and compression

2020 ◽  
Author(s):  
Valerii Seredin ◽  
Aleksey Khrulev ◽  
Sergey Andreiko ◽  
Sergey Galkin
Keyword(s):  
Stress State ◽  
Uniaxial Tension ◽  
Tension And Compression

Dynamic uniaxial tension and compression curves of copper and alloy AMg6

1979 ◽  
Vol 11 (10) ◽  
pp. 1159-1161 ◽  
Author(s):  
A. P. Bol'shakov ◽  
S. A. Novikov ◽  
V. A. Sinitsyn
Keyword(s):  
Uniaxial Tension ◽  
Alloy Amg6 ◽  
Tension And Compression

YIELD STRESS BASED ON NATURAL STRAIN THEORY UNDER CYCLIC TENSION-COMPRESSION LOAD AFTER LARGE SIMPLE SHEAR

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Yasuyuki Kato ◽  
Hiroki Uchida
Keyword(s):  
Yield Stress ◽  
Uniaxial Tension ◽  
Simple Shear ◽  
Strain Theory ◽  
Experimental Result ◽  
Cyclic Loads ◽  
Yield Behavior ◽  
Compression Load ◽  
Natural Strain ◽  
Tension And Compression

Many researches on the yield behavior under cyclic loads have been conducted for many years. However, almost these studies have been done within the range of relatively small size deformation. Hence, the detailed studies for yield phenomenon under cyclic loads after applying a large pre-deformation have not been sufficiently elucidated. Therefore, in the series of our studies, using test pieces of high purity tough pitch copper, the yield behavior generated under cyclic loads after applying the predeformation of large uniaxial tension or large simple shear have been investigated. However, as for the case that the type of pre-deformation differs from the type of deformation in the cyclic load, detailed studies have not been conducted yet. Hence, in the present study, the yield behavior generated under cyclic loads for tension and compression after applying a large pre-deformation of simple shear is examined based on Natural Strain theory. Furthermore, experimental results in the present study are compared with results of previous studies concerning cyclic loads for tension and compression after applying the large uniaxial tension. Consequently, it is revealed that the decreasing tendency of yield stress at the compression side appears more strongly as compared with the experimental result by previous study that the pre-deformity is a uniaxial tension.

Measurement of the Tension/Compression Asymmetry Exhibited by Single Crystalline γ-Ti 55.5at%Al

2000 ◽  
Vol 646 ◽  
Author(s):  
Marc Zupan ◽  
K.J. Hemker
Keyword(s):  
Crystal Orientation ◽  
Applied Load ◽  
Deformation Mode ◽  
Single Cycle ◽  
Flow Strength ◽  
Single Crystalline ◽  
Tension And Compression ◽  
Cycle Loading ◽  
Reversed Cyclic ◽  
Tension Compression Asymmetry

ABSTRACTMicrosample test specimens of single crystalline γ-Ti 55.5at%Al oriented near the [001], and [-110] crystal axes have been deformed in tension and compression at 973K. From these experiments, measurements of the 0.2% offset flow stress have been made as a function of temperature, crystal orientation and sense of the applied load. A measurable violation of Schmid's law was observed and a significant tension/compression asymmetry has been observed at this temperature for the above listed orientations. Single-cycle loading experiments designed to measure the tension/compression asymmetry of the yield strength on the same sample have been conducted along the ∼[-110] and [001] orientations. The flow strength measurements from the specimens, which underwent the fully reversed cyclic-loading experiment, fall near those of the monotonically loaded microsamples deformed at the same temperature, which suggests that the same deformation mode was active in both tension and compression.

Testing and analysis of Anisogrid Prepreg element specimens under uniaxial tension and compression

2017 ◽  
Vol 160 ◽  
pp. 594-603 ◽  
Author(s):  
S. Niemann ◽  
R. Wagner ◽  
M. Beerhorst ◽  
C. Hühne
Keyword(s):  
Uniaxial Tension ◽  
Tension And Compression
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