id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-840		cet-840		6	.pdf	application/pdf	2423	67	40	iR t x t x t x x dV b x tρ = − − +u x f u u j R∀ ∈ (1) In Formula, ρ stands for the density of material point i, xi and xj for location of i and j, u(xi, t) and u(xj, t) for the displacement of material points i and j; u(xi, t) means the secondary derivation of u(xj, t) for time, i.e. DOI: 10.3303/CET1762042 Please cite this article as: Guohao Zhang, Songrong Qian, 2017, Application study of peridynamics theory in failure analysis of brittle material, Chemical Engineering Transactions, 62, 247-252 DOI:10.3303/CET1762042 247 acceleration speed, b(xi, t)means the external density on material point i, R the near field and the radium in this field is denoted with δ shown in formula(2) and Figure 1; the bold-type letter means vector. 1. Introduction Based on the motion equation in integral form, PD is the non-local continuum mechanics theory, mainly for solving the discontinuity caused by material failure, such as cracks.	cache/cet-840.pdf	txt/cet-840.txt