Infinite elements for numerical analysis of underground excavations

✍ Scribed by P. Kumar

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 730 KB
• Volume: 15
• Category: Article
• ISSN: 0886-7798
• DOI: 10.1016/s0886-7798(00)00036-5

✦ Synopsis

Infinite elements were developed to overcome an inherent limitation of the Finite Element Method. The technology of infinite elements has been refined to such an extent that the modeling of an unbounded medium is no longer a limitation of the Finite Element Method. This paper shows that the remaining problem associated with a non-uniform and non-zero far-field decay of any one of the problem variables can also be reso!ved without having to create nodes at infinity. A combined finite-infinite element analysis now matches the power of the Boundary Element Method in handling the unbounded analysis domains while retaining the versatility of the Finite Element Method.