Influencing factors of peridynamics analysis and calculation

Abstract

In this paper, a material structural model is constructed based on a cubic lattice, and applied with a fixed load and an impact load. To provide the basis for parameter selection in modelling, the error and efficiency of structural calculation are analyzed by changing the two parameters in the peridynamics (PD) computation model: near-field region radius δ and m value. During modelling, when δ is given a fixed value, the calculation accuracy will increase with the m value, but the calculation efficiency will change in the opposite trend, thus affecting the path and direction of crack propagation; when m is given a fixed value, the number of point units in the near-field region and the calculation accuracy will not change with δ, but will still affect the path and direction of crack propagation.

Judging Method of Tooth Damage Behavior of the High Speed Milling Cutter

“…The performance of the high speed milling cutter mostly depends on several factors, such as, the materials composing the cutter components, the cutter structure, the selection of the insert coating and the rationality of the design [17]. Among them, the materials of the cutter components are its inherent attribute which is the precondition for studying the Fig.…”

“…However, on the one hand, the optimization of parameters depends on empirical formulas and test data. On the other hand, there is a lack of scientific theories, and there are many ways to solve this problem at home and abroad, such as the parametric design method, TRIZ method [15], and axiomatic design method [16] and [17]. Although these methods play a certain guiding role in the decoupling of the milling cutter design technology, how to translate this abstract solution into a practical solution becomes the primary difficulty.…”