Mechanical Design Failure Models for Buckling
A. Dasgupta and H. Haslach
This tutorial illustrates design situations where elastic buckling of
slender columns and thin plates under compressive loads can result in large
deformations and eventual failure of the structure. This is a classic
example of an overstress failure mechanism, and analytic methods, based
on continuum mechanics principles, are presented to design against such
failures. Examples illustrate the use of these models in practical
in practical design situations in mechanical engineering and electronic
packaging applications. Materials nonlinearities and geometric nonlinearities
due to initial imperfections can reduce the critical buckling stress, and
generally require numerical solutions. The design equations are based
on energy stability principles and can be implemented in an engineering
design environment. This is an overstress mechanical design failure
mechanism. Like excessive elastic deformations, this mechanism is
not itself a material failure mechanism, but can eventually lead to overstress
material failure due to large deformation.
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