複合三明治結構膠黏層的黏彈性質分析

Viscoelastic Analysis for Adhesive Layer of Composite Sandwich Structure

黃崧任(Song-Jeng Huang) ； 王文毅(Wen-Yi Wang)

《中國航空太空學會學刊》 35卷2期 (2003/06) Pp. 135-151

https://doi.org/10.6124/TAASRC.200306_35(2).03

摘要

本研究主要考慮當三明治結構爲上下雨彈性表層中間分別加入兩層黏彈性髏的膠黏屆時，在兩黏彈性層中間再加入考慮心材結構時，推導出各層三明治結構的位移、應力與應變解析解方程式。再以一三明治簡支樑的例子，分別以解析解與有限元素分析來比對與證明所推解析解的正確性，並進一步證明當忽略膠黏層存在和一股彈性的考量所得到的解析解或近似解的結果，並不足以表示實際三明治結構的變化，必須將黏彈性膠黏層考慮進入結構分析才符合實際三明治結構的變化情形，以期望在日後作爲分析三明治結構的參考依據。

關鍵字

三明治結構 ； 膠黏層 ； 黏彈行爲 ； 解析解

並列摘要

In this research, we considered a sandwich structure, which added two viscoelastic adhesive layers on both sides of the core and face sheets. The analytical formulations of the displacement, stress and strain on the interfaces of the structure were derived in present work under proposed geometric assumption. A three-point bending case study was adopted to conduct the validation by comparing the results obtained form the analytical solutions and the finite element solutions. It can prove that the analytical or the approximated solutions derived neither from assumption of no adhesive layers considering nor from elastic assumption cannot perform realistic responses of the sandwich structure. The viscoelastic adhesive layers must be involved into the sandwich analysis consideration according to our studying.

並列關鍵字

Sandwich structure ； Adhesive layer ； Viscoelastiebehavior ； Analytical solution