样条造型单元的研究与在接触分析中的应用

Research of Buffering Technique in the Encrypting File System

摘要: 为解决岩土工程中土体-结构界面的复杂接触行为问题,根据接触非线性理论和桩土不同物理力学特性的特点,结合前人的相关试验和理论成果,将应用于计算机辅助几何设计中的Nurbs样条曲线引入到造型单元中.给出了样条造型单元的变形求解方法,用Maple软件编程产生数据库,并用ABAQUS软件的用户子程序接口调入数据和编制的桩土界面接触单元.结果表明,这种造型单元可以很好地模拟复杂应力路径下的土体-结构界面的复杂变形行为.

Abstract: The article studies the removal technology of buffer in Encrpting File System.When the encrypted files are closed,the kernel function is used and plaintext data is deleted rather than forbidden.The method ensures the efficiency of file operations and document content security in encrypted file system so as to effectively prevent the document disclosure.