Answered: What are tangent modules?

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter2: Measurement, Materials, And Safety

Section2.1: Introduction To Safety

Problem 13RQ

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What are tangent modules?

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The slope of the stress strain curve up to the elastic limit is called the tangent modulus for a given value of stress and strain. The tangent modulus is equialently equal to Young's Modulus. It is constant up to the proportional limit. When plastic deformation starts tangent modulus changes from point to point.

Young's modulus is greater than tangent modulus at point A. Tangent modulus is used for describing stiffness of the material above the elastic range and can be denoted as E_t.

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