A material specimen is loaded in tension and shows a fully recoverable deformation up to a certain stress, after which the deformation becomes permanent even after the load is removed. Which of the following statements best identifies the type of material behaviour represented by the specimen during the permanent deformation stage?

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Physics · Properties of Matter

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

It shows plastic behaviour with irreversible deformation under sustained stress.

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Answer 1

It shows brittle behaviour with negligible deformation before complete failure.

Answer 2

It shows resilient behaviour with stored energy released after unloading.

Answer 3

It shows elastic behaviour with reversible deformation under applied stress.

Answer 4

It shows plastic behaviour with irreversible deformation under sustained stress.

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