Frequency domain structural synthesis applied to quasi-static crack growth modeling
Kwon, Young W.
Gordis, Joshua H.
MetadataShow full item record
Quasi-static crack growth in a composite beam was modeled using the structural synthesis technique along with a finite element model. The considered crack was an interface crack in the shear mode (i.e. mode II), which occurs frequently in the scarf joint of composite structures. The analysis model was a composite beam with an edge crack at the midplane of the beam subjected to a three-point bending load. In the finite element model, beam finite elements with translational degrees of freedom only were used to model the crack conveniently. Then, frequency domain structural synthesis (substructure coupling) was applied to reduce the computational time associated with a repeated finite element calculation with crack growth. The quasi-static interface crack growth in a composite beam was predicted using the developed computational technique, and its result was compared to experimental data. The computational and experimental results agree well. In addition, the substructure-based synthesis technique showed the significantly improved computational efficiency when compared to the conventional full analysis.
The article of record as published may be found at http://dx.doi.org/10.3233/SAV-2009-0497
Showing items related by title, author, creator and subject.
Kwon, Y.W.; Liu, C.T. (1997-08-01);A micro/macromechanical approach was used to model and simulate crack initiation and crack propagation in particulate composite structures. The approach used both the micromechanical and macromechanical analyses in tandem. ...
Seigenthaler, Daniel M. (Monterey, California. Naval Postgraduate School, 1991-06);A phenomenological and parametric study was conducted to assess the effect of thermal residual stresses on the stressstrain response of a discontinuous fiber-reinforced metalmatrix composite in tensile and compressive ...
Kwon, Y.W.; Plessas, S.D. (Elsevier Ltd., 2014-06-04);Dynamic characteristics of polymer composite beam and plate structures were studied when the structures were coupled with water. The effect of Fluid–Structure Interaction (FSI) on natural frequencies, mode shapes, and ...