Nanometer microcrystalline glass stress finite element simulation design method based on strategy optimization

By constructing a four-field coupled finite element model and strategy optimization method for nanocrystalline glass, the problem of the lack of reflection of the dynamic influence of the crystallization process in the existing technology is solved. This enables efficient stress simulation design of nanocrystalline glass, reduces residual stress, and improves the accuracy of simulation results and the reliability of process design.

CN121543354APending Publication Date: 2026-02-17SHENZHEN BROADSHINE NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202610034602.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-12
Publication Date
2026-02-17

AI Technical Summary

Technical Problem

Existing technologies fail to effectively reflect the dynamic impact of the crystallization process on material properties in finite element simulations of nanocrystalline glass, resulting in discrepancies between simulation results and actual conditions. Furthermore, the lack of systematic stress performance evaluation indicators and parameter optimization mechanisms makes it difficult to obtain the optimal heat treatment scheme.

Method used

A strategy-optimized finite element simulation design method for nanocrystalline glass stress is adopted. A four-field coupled finite element model with the crystallization integral field as the core state variable is established, including the crystallization dynamic field, temperature field, viscoelastic stress relaxation field and structural mechanical field. The model is solved in a coordinated manner, and the heat treatment path parameters are iteratively updated with stress performance index as the optimization objective to reduce residual stress.

Benefits of technology

It significantly improves the accuracy of residual stress distribution prediction, reduces the risk of failure such as cracking and warping, improves process design efficiency and consistency, provides reliable simulation design results, and facilitates stress simulation and process design for various nanocrystalline glass products.

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Abstract

The invention provides a nanocrystalline glass stress finite element simulation design method based on strategy optimization, and relates to the technical field of glass simulation design. A four-field coupling finite element model of a crystallization kinetic field, a temperature field, a viscoelastic stress relaxation field and a structural mechanical field is constructed, and material parameters are dynamically updated along with a crystallization integral number field; and iteratively updating the heat treatment path parameters through a strategy optimization method until preset residual stress control conditions are met. And finally, outputting optimal heat treatment path parameters and corresponding crystallization integral number field distribution and residual stress distribution results, and forming a reproducible simulation design result. According to the method, on the premise of considering the influence of devitrification phase change and viscoelastic relaxation, the adverse residual stress in the nanocrystalline glass is effectively reduced, and the accuracy of simulation design and the engineering reliability of a process scheme are improved.
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