一种包衣薄膜杨氏弹性模量的平底圆柱体加载测量方法

专利类型：发明专利

语言：中文

申请号：CN201410111109.2

申请日：20140324

发明人：何晓婷孙俊贻蔡珍红郑周练曹亮练永盛文江泉

申请人：重庆大学

申请人地址：400044 重庆市沙坪坝区沙正街174号

公开日：20140604

公开号：CN103837412A

代理人：穆祥维

代理机构：重庆博凯知识产权代理有限公司 50212

摘　　要：本发明公开了一种包衣薄膜杨氏弹性模量的平底圆柱体加载测量方法：在薄膜/基层体系的基层上开一个贯穿基层的半径为d的小孔，采用一个半径为b的无摩擦平底圆柱体作为加载轴，通过基层上的小孔对包衣薄膜施加载荷F，使厚度为h、泊松比为ν的包衣薄膜脱离基层，并形成一个半径为a的稳定鼓泡，其中b＜d，基于这个稳定鼓泡的静力平衡分析，利用半径r=b处的鼓泡挠度测量值wb及其所对应的荷载值F，则可以准确计算出包衣薄膜的杨氏弹性模量E。

主权项：1.一种包衣薄膜杨氏弹性模量的平底圆柱体加载测量方法，其特征是：在薄膜/基层结构的基层上开一个贯穿基层的半径为d的小孔，用一个半径为b的无摩擦平底圆柱体作为加载轴，通过基层上的小孔对包衣薄膜施加载荷F，使厚度为h、泊松比为ν的包衣薄膜脱离基层，并形成一个半径为a的稳定鼓泡，其中b<d，准确测量出这个稳定鼓泡在半径r=b处的挠度值wb及其所对应的荷载值F，并记α=b/a，那么基于这个稳定鼓泡的静力平衡分析，包衣薄膜的杨氏弹性模量E可以按照以下三种情形进行计算确定:情形①如果(1+ν)(3-α²)=4则 $E = (\frac{a^{2} F}{πh w_{b}^{3}}) [(3 - a^{2关键词：法律状态：生效IPC专利分类号： G01N3/08(2006.01)Ivar ShareData = new Array();
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