Peridynamic theory for thermomechanical analysis

Bahattin Kilic, Erdogan Madenci

Research output: Contribution to journalArticle

46 Scopus citations

Abstract

Thermomechanical modeling for interconnects and electronic packages is a difficult challenge, especially for material interfaces and films under 1 μm dimension. Understanding and prediction of their mechanical failure require the simulation of material behavior in the presence of multiple length scales. However, the classical continuum theory is not capable of predicting failure without a posterior analysis with an external crack growth criteria and treats the interfaces having zero thickness. A new nonlocal continuum theory referred to as peridynamic theory offers the ability to predict failure at these length scales. This study presents a new response function as part of the peridynamic theory to include thermal loading. After validating this response function by comparing against the displacement predictions in benchmark problems against those of finite element method, the peridynamic theory is used to predict damage initiation and propagation in regions having dissimilar materials due to thermomechanical loading.

Original languageEnglish (US)
Article number5280260
Pages (from-to)97-105
Number of pages9
JournalIEEE Transactions on Advanced Packaging
Volume33
Issue number1
DOIs
StatePublished - Feb 1 2010

Keywords

  • Crack
  • Failure
  • Interface
  • Peridynamics
  • Thermal

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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