Measurement and Analysis of Deformation Behavior of Polyethylene Tube Subjected to Biaxial Tensile Stress with Large Strain

2021 ◽  
Vol 62 (725) ◽  
pp. 73-78
Author(s):  
Sohta KUBO ◽  
Toshihiko KUWABARA ◽  
Takuya SUMIYAMA ◽  
Takaya KOBAYASHI ◽  
Kenji FURUICHI ◽  
...  
Keyword(s):  
Tensile Stress ◽  
Deformation Behavior ◽  
Large Strain ◽  
Polyethylene Tube ◽  
Biaxial Tensile ◽  
Measurement And Analysis ◽  
Biaxial Tensile Stress

Determination of the Biaxial Anisotropy Coefficient Using a Single Layer Sheet Metal Compression Test

2021 ◽  
Vol 883 ◽  
pp. 303-308
Author(s):  
Peter Hetz ◽  
Matthias Lenzen ◽  
Martin Kraus ◽  
Marion Merklein
Keyword(s):  
Stress State ◽  
Tensile Stress ◽  
Sheet Metal ◽  
Compression Test ◽  
Test Procedure ◽  
Rolling Direction ◽  
Single Layer ◽  
Material Behavior ◽  
Biaxial Tensile ◽  
Biaxial Tensile Stress

Numerical process design leads to cost and time savings in sheet metal forming processes. Therefore, a modeling of the material behavior is required to map the flow properties of sheet metal. For the identification of current yield criteria, the yield strength and the hardening behavior as well as the Lankford coefficients are taken into account. By considering the anisotropy as a function of rolling direction and stress state, the prediction quality of anisotropic materials is improved by a more accurate modeling of the yield locus curve. According to the current state of the art, the layer compression test is used to determine the corresponding Lankford coefficient for the biaxial tensile stress state. However, the test setup and the test procedure is quite challenging compared to other tests for the material characterization. Due to this, the test is only of limited suitability if only the Lankford coefficient has to be determined. In this contribution, a simplified test is presented. It is a reduction of the layer compression test to one single sheet layer. So the Lankford coefficient for the biaxial tensile stress state can be analyzed with a significantly lower test effort. The results prove the applicability of the proposed test for an easy and time efficient characterization of the biaxial Lankford coefficient.

scholarly journals Calculations of energy band structure and mobility in critical bandgap strained Ge1-xSnx based on Sn component and biaxial tensile stress modulation

2018 ◽  
Vol 67 (2) ◽  
pp. 027101
Author(s):  
Di Lin-Jia ◽  
Dai Xian-Ying ◽  
Song Jian-Jun ◽  
Miao Dong-Ming ◽  
Zhao Tian-Long ◽  
...  
Keyword(s):  
Band Structure ◽  
Tensile Stress ◽  
Energy Band ◽  
Energy Band Structure ◽  
Biaxial Tensile ◽  
Biaxial Tensile Stress

Analysis of GaAs properties under biaxial tensile stress

1998 ◽  
Vol 16 (4) ◽  
pp. 2663-2667 ◽  
Author(s):  
Ki Soo Kim ◽  
Gye Mo Yang ◽  
Hyung Jae Lee
Keyword(s):  
Tensile Stress ◽  
Biaxial Tensile ◽  
Biaxial Tensile Stress

Design and Development of a Biaxial Tensile Test Device for a Thin Film Specimen

2011 ◽  
Vol 134 (1) ◽  
Author(s):  
Takahiro Namazu ◽  
Yuji Nagai ◽  
Nobuyuki Naka ◽  
Nozomu Araki ◽  
Shozo Inoue
Keyword(s):  
Thin Film ◽  
Tensile Stress ◽  
Tensile Test ◽  
Test Device ◽  
Design And Development ◽  
Tensile Direction ◽  
Biaxial Tensile Test ◽  
Biaxial Tensile ◽  
Biaxial Tensile Stress ◽  
Film Specimen

In this article, the design and development of a biaxial tensile test device and its specimen are described. The device, which was designed for evaluating the mechanical characteristics of a thin film specimen under in-plane uniaxial and biaxial tensile stress states, consists of four sets of a piezoelectric actuator, a load cell, a linear variable differential transformer (LVDT), and an actuator case including lever structures with displacement amplification function. The structures fabricated by wire electrical discharge machining are able to amplify the actuator’s displacement by a factor of 3.8 along the tensile direction. The biaxial test specimen prepared using conventional micromachining processes is composed of a cross-shaped film section and chucking parts supported by silicon springs. After square holes in four chuck parts are respectively hooked with four loading poles, the film section is tensioned to the directions where the poles get away from the center of the specimen. Tensile strain rate can be individually controlled for each tensile direction. Raman spectroscopic stress analyses demonstrated that the developed biaxial tensile test device was able to accurately apply not only uniaxial but also biaxial tensile stress to a single-crystal silicon (SCS) film specimen.

Uniaxial and biaxial tensile stress–stretch response of human linea alba

2016 ◽  
Vol 63 ◽  
pp. 134-140 ◽  
Author(s):  
Gerard M. Cooney ◽  
Spencer P. Lake ◽  
Dominic M. Thompson ◽  
Ryan M. Castile ◽  
Des C. Winter ◽  
...  
Keyword(s):  
Tensile Stress ◽  
Linea Alba ◽  
Biaxial Tensile ◽  
Biaxial Tensile Stress ◽  
Stretch Response
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