论文标题
使用ISOOGENOMETRIC BOINDURENEMENT方法对夹杂物和加固栏的有效仿真
Efficient simulation of inclusions and reinforcement bars with the isogeometric Boundary Element method
论文作者
论文摘要
该论文涉及在应用于包含具有与计算域不同的弹性属性的问题的问题时，针对等级边界元素方法（BEM）的有效和准确的解决方案程序的开发。以前的论文已经解决了这个主题，但是此处提出的方法在效率和准确性方面有了很大的提高。 一种创新是使用初始应力代替体力。然后，这允许一个步骤解决方案而无需迭代。此外，一种新颖的方法用于计算菌株，以避免使用高度奇异的基本解决方案。最后，提出了一种新型的包含，可用于建模增强杆或岩石螺栓，并在可以使用分析积分的地方。将结果与有限元模拟进行比较的测试示例，表明所提出的方法是合理的。
The paper is concerned with the development of efficient and accurate solution procedures for the isogeometric boundary element method (BEM) when applied to problems that contain inclusions that have elastic properties different to the computed domain. This topic has been addressed in previous papers but the approach presented here is a considerable improvement in terms of efficiency and accuracy. One innovation is that initial stresses instead of body forces are used. This then allows a one step solution without iteration. In addition, a novel approach is used for the computation of strains, that avoids the use of highly singular fundamental solutions. Finally, a new type of inclusion is presented that can be used to model reinforcement bars or rock bolts and where analytical integration can be used. Test examples, where results are compared with Finite Element simulations, show that the proposed approach is sound.
