1.

Record Nr.

UNINA9910407736803321

Titolo

Mechanics of Strain Gradient Materials / / edited by Albrecht Bertram, Samuel Forest

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2020

ISBN

3-030-43830-9

Edizione

[1st ed. 2020.]

Descrizione fisica

1 online resource (177 pages)

Collana

CISM International Centre for Mechanical Sciences, Courses and Lectures, , 0254-1971 ; ; 600

Disciplina

620.11292

Soggetti

Mechanics

Mechanics, Applied

Building materials

Materials science

Computer science - Mathematics

Solid Mechanics

Structural Materials

Materials Science, general

Computational Mathematics and Numerical Analysis

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

The Experimental Evidence for Higher Gradient Theories -- Balance Laws for Gradient Materials -- Strain Gradient Elasticity: From Capillarity to the Mechanics of Nano-Objects -- Microscopic interpretation of strain-gradient and generalized continuum models -- Strain Gradient Plasticity: Theory and Implementation -- Finite Gradient Elasticity and Plasticity.

Sommario/riassunto

Over the past 50 years, strain gradient material theories have been developed for the continuum modeling of size effects in materials and structures in terms of their elasticity, plasticity and fracturing. This book puts forward a unifying perspective to combine existing theories involving the higher order gradient of the strain tensor, or of plastic strain. It begins by reviewing experimental findings on the existence (or non-existence) of size effects on the mechanics of materials. In turn,



the book devises first, second and higher order strain gradient theories from general principles, and presents constitutive frameworks that satisfy thermodynamic requirements. The special case of strain gradient plasticity is then developed and illustrated via computational analyses of size effects on the plasticity of metals at small scales. In closing, the book explains the origin of gradient effects in the case of lattice structures by drawing on homogenization theory.