Buckling and collapse analysis of a cracked panel under a sequence of tensile to compressive load employing a shell-solid mixed finite element modeling

2019 ◽  
Vol 104 ◽  
pp. 987-1001 ◽  
Author(s):  
Satoyuki Tanaka ◽  
Septia Hardy Sujiatanti ◽  
Yu Setoyama ◽  
Ji Yu ◽  
Daisuke Yanagihara ◽  
...  
SPE Journal ◽  
2009 ◽  
Vol 14 (01) ◽  
pp. 78-87 ◽  
Author(s):  
Stein Krogstad ◽  
Louis J. Durlofsky

Author(s):  
Andrei V. Nikitsin

The goal of this work is to study the effect of bone ingrowth into open pores of the implant and estimate of the mechanical characteristics for obtained biocomposite. Reconstruction of the isotropic model based on data acquired from computed tomography allows us to study the metallic and bone components integration under compressive load. Results are compared to performed mechanical tests of the porous specimen. The finite element modeling allows obtaining a stress-stain curve for the bone – titanium biocomposite. Young’s modulus of the metallic specimen is increased by 29 % after pores is filled with bone tissues. The conditional yield strength of the bone – titanium biocomposite is 2 times higher than that of porous open-pore titanium.


2012 ◽  
Vol 548 ◽  
pp. 7-11
Author(s):  
Mahmoud Shokreih ◽  
Ahmad Parsaee

When fiber-reinforced composites (FRC) are subjected to compressive load parallel to the fiber direction, they fail as a result of fiber buckling and/or transverse failure of the resin. Compressive loading brings about two buckling modes to fibers. The first mode is shear buckling, and the other is transverse buckling. Recent studies support the hypothesis that fiber buckling causes compressive rupture. In this study, finite element modeling software was employed to examine the behavior of a resin-embedded single fiber in terms of fiber content ratio. The performed modeling procedures illustrated that the single fiber experiences three discrete failure modes depending on fiber content ratio; and then a corrected equation was proposed for each mode. Fiber content ratio of the composite is one of effective parameters to determine the compressive strength value. Optimum fiber content ratio has been measured using finite element method. Numerical results are compared to experimental ones to analyze the obtained results. The optimum fiber content ratio calculated by the finite element modeling was measured 40% in this paper.


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