一种芳纶蜂窝壁多层结构的单层等效结构分段力学模型建立方法
By establishing a single-layer equivalent structural segmental mechanical model of the multi-layer aramid honeycomb wall structure, the problem of asynchronous failure of resin and aramid paper was solved, which improved the accuracy and efficiency of finite element analysis and reduced the modeling difficulty and cost.
CN115688523BActive Publication Date: 2026-07-17DALIAN UNIV OF TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN UNIV OF TECH
- Filing Date
- 2022-11-07
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing aramid honeycomb sandwich structures fail to effectively consider the asynchronous failure of resin and aramid paper in finite element analysis, resulting in large errors in the analysis results, and are difficult and time-consuming to model.
Method used
A segmental mechanical model of a single-layer equivalent structure of an aramid honeycomb wall multilayer structure was established. By assigning different elastic moduli to the single-layer equivalent structure at different stress stages, the segmental failure behavior of the resin-aramid paper-resin multilayer structure was simulated.
Benefits of technology
It improves the accuracy of finite element analysis, reduces modeling difficulty and analysis time, and saves experimental costs.
✦ Generated by Eureka AI based on patent content.
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Figure CN115688523B_ABST
Abstract
本发明公开了一种芳纶蜂窝壁多层结构的单层等效分段力学模型建立方法，具有如下步骤：建立单层等效结构，由建立的单层等效结构代替芳纶蜂窝壁的树脂‑芳纶纸‑树脂多层结构；对建立的单层等效结构进行拉伸或者压缩处理，基于变形过程中单层等效结构达到树脂的破坏准则、芳纶纸的等效强度失效准则、芳纶纸渐进损伤阈值中的任一项时进行单层等效结构的弹性模量的赋值，从而模拟树脂‑芳纶纸‑树脂多层结构在拉伸或者压缩处理中的分段破坏行为。本发明提出的一种芳纶蜂窝壁多层结构的单层等效分段力学模型，替代芳纶蜂窝多层结构模型，解决了宏观尺度上芳纶蜂窝孔壁建模问题，降低蜂窝孔壁建模难度，减少有限元分析时间，节约实验成本。
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