Finite element simulation method and system, computer equipment and storage medium

Abstract

The invention discloses a finite element simulation method and system, computer equipment and a computer readable storage medium. A printing path is dispersed into a plurality of segments according to time steps, a basic unit is arranged in each segment, activation is carried out according to a printing time sequence, in the printing simulation process, temperature-related relaxation behaviors and flow shear phenomena of materials are considered, thermal contact and mechanical contact are arranged on the surfaces of the basic units, a temperature field and a stress field are coupled for calculation, and a result close to actual printing is obtained through a thermal-mechanical-chemical full-coupling finite element simulation method; furthermore, the initial residual stress is considered to simulate the printing process, the condition of deformation of the printed object caused by the initial residual stress can be analyzed, and the performance of the printed object under different printing parameter settings can be evaluated according to the temperature data and the strain data obtained through calculation. The finite element simulation method can provide data to support adjustment of printing parameters.

Description

technical field [0001] The present application relates to the field of computer data processing, in particular to a finite element simulation method and system for fused deposition printing, computer equipment and a computer-readable storage medium. Background technique [0002] In the existing fused deposition printing slicing software, the printing path and printing parameters are determined in a purely geometric way, which cannot effectively guarantee the printing speed and the performance of the final printed product such as shape distortion, interlayer bonding, elastic modulus and strength. Based on the existing slicing technology to analyze the printing process and evaluate the performance of the obtained objects to adjust the printing path and printing parameters, it is difficult to track the change state of the material temperature field and stress field during the printing process, and at the same time it needs to bear high costs. Economic cost and time cost. Cont...

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Problems solved by technology

[0003] In view of the shortcomings of the above-mentioned related technologies, the purpose of this application is to provide a finite element simulation method, system, computer equipment and computer-readable storage medium to solve the problem of temperature field and stress of materials in the printing process that are difficult to achieve in the prior art. In order to track the state of field changes, technical issues such as high economic costs and time costs need to be borne

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