When to use additive and multiplicative strain decomposition?

10 November 2020 1 7K Report

In the literature it is given that for small strain problems, additive decomposition is applied and for large strain problems multiplicative decomposition. Apart from this, is there any other criteria for selecting the type of strain decomposition that has to be followed? The stress-strain curve in my case is highly nonlinear, what should be my approach towards the strain decomposition?

Nishant Ashok Mistry

Chapter 8.7 of tensor algebra and tensor analysis for engineers by Mikhail Itskov shares some insights on the limitations of additive decomposition applied to large strains.. may be helpful

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