IEEE Transactions on Reliability, Vol. 41, No. 3, September, 1992
Failure Mechanism Models for Brittle Fracture
A. Dasgupta, and J. Hu
CALCE EPSC
University of Maryland
College Park, MD
Abstract:
This tutorial illustrates designs where brittle fracture can endanger
system performance, thereby acting as an overstress failure mechanism.
Analytic (physics-of-failure) methods, based on continuum fracture-mechanics
rather than on molecular micro-mechanics, are presented to design against
such failures. The associated stress-analysis techniques and material
characterizations have matured appreciably over the past 40 years and are
routinely used in aerospace, automotive, and other mechanical/structural
applications. Two examples illustrate the use of these models in
practical electronic packaging.
Complete
article is available to CALCE Consortium Members.
