Numerical Analysis of Static Behavior in a Three-point Bending Test of Aluminum Foam Sandwich Beams using the Extended Finite Element Method

2009 ◽  
Vol 2 (1) ◽  
pp. 176-180
Author(s):  
Youngwon Hahn ◽  
Seong Sik Cheon
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Analysis ◽  
Aluminum Foam ◽  
Extended Finite Element Method ◽  
Bending Test ◽  
Sandwich Beams ◽  
Extended Finite Element ◽  
Static Behavior ◽  
Three Point Bending

Simulation of Crack Propagation in Concrete Based on Extended Finite Element Method

2018 ◽  
Vol 783 ◽  
pp. 165-169 ◽  
Author(s):  
Yu Xiang Tang ◽  
Hong Niao Chen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Concrete Beam ◽  
Extended Finite Element Method ◽  
Peak Load ◽  
Experimental Tests ◽  
Extended Finite Element ◽  
Three Point Bending ◽  
Fracture Behaviors ◽  
Element Method

Fracture behaviors in concrete beam subjected to three-point bending was numerically simulated using extended finite element method (XFEM). The entire load-displacement curves and crack path obtained by numerical simulation were compared with that measured from experimental tests. Compared with the experimental results, the errors of numerical Pc and δc were smaller than 10% and the error of CMODc was lower than 2%, verifying the validity and accuracy of XFEM model. Whether a XFEM simulation or a test, the propagation direction of the main crack is toward to the upper loading point. At the peak load, the crack lengths measured by ESPI and XFEM were 93 μm and 97 μm respectively.

scholarly journals A mesh-independent framework for crack tracking in elastodamaging materials through the regularized extended finite element method

2021 ◽  
Author(s):  
Elena Benvenuti ◽  
Nicola Orlando
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Damage Evolution ◽  
Extended Finite Element Method ◽  
Mesh Adaptivity ◽  
Extended Finite Element ◽  
Evolution Law ◽  
Crack Paths ◽  
Original Crack ◽  
Element Method

AbstractWe propose a formulation for tracking general crack paths in elastodamaging materials without mesh adaptivity and broadening of the damage band. The idea is to treat in a unified way both the damaging process and the development of displacement discontinuities by means of the regularized finite element method. With respect to previous authors’ contributions, a novel damage evolution law and an original crack tracking framework are proposed. We face the issue of mesh objectivity through several two-dimensional tests, obtaining smooth crack paths and reliable structural results.

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