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http://dx.doi.org/10.7734/COSEIK.2017.30.1.31

Computation of Energy Release Rates for Slender Beam through Recovery Analysis and Virtual Crack Closure Technique  

Jang, Jun Hwan (Defense Acquisition Program Administration)
Koo, Hoi-Min (Dept. of Mechanical Design Engineering, Chungnam National University)
Ahn, Sang Ho (Department of Automotive Engineering, Shinhan Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.30, no.1, 2017 , pp. 31-37 More about this Journal
Abstract
In this paper, computation results of reducible modeling, stress recovery and energy release rate were compared with the results of VABS, Virtual Crack Closure Technique. The result of stress recovery analysis for 1-D model including the stiffness matrix is compared with stress results of three-dimensional 3-D FEM. Energy release rate of composite beam with longitudinal cracks is calculated and compare verifications of numerical analysis results of 3-D FEM and VABS. The procedure of calculating energy release rate through dimensional reduction and stress recovery is intended to be efficient and be utilized in the life-cycle of high-altitude uav's wing, wind blades and tilt rotor blade.
Keywords
cross-sectional analysis; reducible modeling; recovery analysis; virtual crack closure technique;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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