scholarly journals Influence of thickness and initial groove angle in M–K model on limit strain of 7B04 by considering through-thickness stress

2020 ◽  
Vol 33 (3) ◽  
pp. 1074-1084 ◽  
Author(s):  
Hongrui DONG ◽  
Xiaoqiang LI ◽  
Haibo WANG ◽  
Guiqiang GUO ◽  
Dongsheng LI
Keyword(s):  
Limit Strain

Effect of Texture on Fracture Limit Strain in Friction Stir Processed AZ31B Mg Alloy

2008 ◽  
pp. 43-52
Author(s):  
Yutaka S. Sato ◽  
Akihiro Sugimoto ◽  
Hiroyuki Kokawa ◽  
Chang-Woo Lee
Keyword(s):  
Limit Strain ◽  
Mg Alloy ◽  
Friction Stir

Experimental Methodology for Limit Strain Determination in a Carbon/Epoxy Composite under Tensile Fatigue Loading

2014 ◽  
Vol 805 ◽  
pp. 311-318 ◽  
Author(s):  
C. Ancelotti ◽  
M.L.M. Noronha Melo ◽  
Vanderlei O. Gonçalves ◽  
K. Garcia ◽  
L.C. Pardini
Keyword(s):  
Epoxy Composite ◽  
Fatigue Behavior ◽  
Damage Index ◽  
Strain Range ◽  
Material Design ◽  
Fatigue Loading ◽  
Limit Strain ◽  
Experimental Methodology ◽  
Loop Analysis ◽  
Stiffness Reduction

This work proposes a methodology to obtain the carbon fiber/epoxy composite limit strain for structures surviving 120000 cycles. The damage progression was also evaluated using stiffness reduction and hysteresis loop analysis in order to obtain dynamic and secant modulus. The results provide information about composite fatigue behavior. This approach determined a limit strain range from 0.83 to 0.87%, a fatigue stress limit of 0.8% of the static strength, stiffness degradation (damage index) of about 5% (within the limit strain). The methodology presented herein may be used for determining of material design allowable when fatigue is key consideration.

Novel experimental method to determine the limit strain by means of thickness variation

2019 ◽  
Vol 153-154 ◽  
pp. 208-218 ◽  
Author(s):  
R.A. Iquilio ◽  
F.M. Castro Cerda ◽  
A. Monsalve ◽  
C.F. Guzmán ◽  
S.J. Yanez ◽  
...  
Keyword(s):  
Experimental Method ◽  
Limit Strain ◽  
Thickness Variation

Establishment and Application of Forming Limit Diagram of Multi-Gauge Laser Tailor-Welded Blanks

2010 ◽  
Vol 97-101 ◽  
pp. 420-425
Author(s):  
Wei Chen ◽  
S. Cheng ◽  
Y. Ding ◽  
Y.Q. Guo ◽  
L. Xue
Keyword(s):  
High Strength Steel ◽  
Research Method ◽  
Forming Limit Diagram ◽  
High Strength ◽  
Failure Criteria ◽  
Limit Strain ◽  
Measuring System ◽  
Forming Limit ◽  
Forming Process ◽  
Tailor Welded Blanks

The method for establishing the forming limit diagram (FLD) of multi-gauge high strength steel laser tailor-welded blanks (LTWB) is introduced based on analyzing the failure mechanism of multi-gauge LTWB. The Nakazima test is performed to generate the limit strain of multi-gauge high strength steel LTWB. By means of the ARGUS strain measuring system, the limit strain is measured and the FLD of LTWB is plotted subsequently. The FLD established by the Nakazima test is introduced into the FEA forming process as the failure criteria. Compared with the predicted result of the FLD of thinner metal, better correlation between the simulation and experimental results is indicated by adopting the FLD of LTWB as the necking criteria, which also reveals the validity and practicability of the FLD research method for multi-gauge high strength steel LTWB.

Design of a cruciform biaxial tensile specimen for limit strain analysis by FEM

2002 ◽  
Vol 123 (1) ◽  
pp. 67-70 ◽  
Author(s):  
Yong Yu ◽  
Min Wan ◽  
Xiang-Dong Wu ◽  
Xian-Bin Zhou
Keyword(s):  
Strain Analysis ◽  
Tensile Specimen ◽  
Limit Strain ◽  
Biaxial Tensile
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