Study for numerical calculation of dynamic stress intensity factor based on thefinite element method

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (1) : 223-226.

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Study for numerical calculation of dynamic stress intensity factor based on thefinite element method

LI Xudong1; ZHANG Lu1; MA Yuan2; WU Dongliu1

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Abstract

Solutions of dynamic stress intensity factor of several models were obtained accurately, using
ANSYS commercial FEM software, adopting non-singular elements and the Newmark Integral Method, through
least square fitting. The method can be used widely for general purpose, which was beneficial and necessary for
using linear elastic fracture dynamic to solve practical engineering problems.

Key words

dynamic stress intensity factor / the finite element method / Newmark integral / least square

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LI Xudong;ZHANG Lu;MA Yuan;WU Dongliu. Study for numerical calculation of dynamic stress intensity factor based on thefinite element method[J]. Journal of Vibration and Shock, 2011, 30(1): 223-226