caa a22 4500 463163982 CHVBK 20180406164756.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10778-007-0059-x doi (NATIONALLICENCE)springer-10.1007/s10778-007-0059-x Mesomechanics of deformation and short-term damage of linear elastic homogeneous and composite materials [Elektronische Daten] [L. Khoroshun, E. Shikula] The structural theory of microdamage of homogeneous and composite materials is generalized. The theory is based on the equations and methods of the mechanics of microinhomogeneous bodies with stochastic structure. A single microdamage is modeled by a quasispherical pore empty or filled with particles of a damaged material. The accumulation of microdamages under increasing loading is modeled as increasing porosity. The damage within a single microvolume is governed by the Huber-Mises or Schleicher-Nadai failure criterion. The ultimate strength is assumed to be a random function of coordinates with power-law or Weibull one-point distribution. The stress-strain state and effective elastic properties of a composite with microdamaged components are determined using the stochastic equations of elasticity. The equations of deformation and microdamage and the porosity balance equation constitute a closed-form system of equations. The solution is found iteratively using conditional moments. The effect of temperature on the coupled processes of deformation and microdamage is taken into account. Algorithms for plotting the dependences of microdamage and macrostresses on macrostrains for composites of different structure are developed. The effect of temperature and strength of damaged material on the stress-strain and microdamage curves is examined Springer Science+Business Media, Inc., 2007 composite material nationallicence stochastic structure nationallicence deformation nationallicence short-term damage nationallicence porosity nationallicence temperature nationallicence effective elastic properties nationallicence stress-strain state nationallicence Khoroshun L. S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kyiv aut Shikula E. S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kyiv aut International Applied Mechanics Springer US 43/6(2007-06-01), 591-620 1063-7095 43:6<591 2007 43 10778 https://doi.org/10.1007/s10778-007-0059-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10778-007-0059-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Khoroshun L. S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kyiv aut NATIONALLICENCE 700 1- Shikula E. S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kyiv aut NATIONALLICENCE 773 0- International Applied Mechanics Springer US 43/6(2007-06-01), 591-620 1063-7095 43:6<591 2007 43 10778 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer