Author: Shailendra Kumar, Sudhirkumar V Barai | Size: 5.1 MB | Format:
PDF | Publisher: Springer | Year: 2011 | pages: 406 | ISBN: 3642167632
Cementitious materials, rocks and fibre-reinforced composites commonly
termed as quasibrittle, need a different fracture mechanics approach to
model the crack propagation study because of the presence of significant
size of fracture process zone ahead of the crack-tip. Recent studies
show that concrete structures manifest three important stages in
fracture process: crack initiation, stable crack propagation and
unstable fracture or failure. Fracture Mechanics concept can better
explain the above various stages including the concepts of ductility,
size-effect, strain softening and post-cracking behavior of concrete and
concrete structures.
The book presents a basic introduction on the various nonlinear concrete
fracture models considering the respective fracture parameters. To this
end, a thorough state-of-the-art review on various aspects of the
material behavior and development of different concrete fracture models
is presented. The development of cohesive crack model for standard test
geometries using commonly used softening functions is shown and
extensive studies on the behavior of cohesive crack fracture parameters
are also carried out. The subsequent chapter contains the extensive
study on the double-K and double-G fracture parameters in which some
recent developments on the related fracture parameters are illustrated
including introduction of weight function method to Double-K Fracture
Model and formulization of size-effect behavior of the double-K fracture
parameters. The application of weight function approach for determining
of the KR-curve associated with cohesive stress distribution in the
fracture process zone is also presented. Available test data are used to
validate the new approach. Further, effect of specimen geometry,
loading condition, size-effect and softening function on various
fracture parameters is investigated. Towards the end, a comparative
study between different fracture parameters obtained from various models
is presented.
دانلود:
http://depositfiles.com/files/xkv2tyqke
http://www.duckload.com/download/2819455/Concrete_Fracture_Models_Applications.rar
http://www.filesonic.com/file/80721988/concrete_fracture_models_applications.rar
http://www.fileserve.com/file/KDanYTu/concrete_fracture_models_applications.rar
http://uploading.com/files/f5f32c4c/concrete_fracture_models_applications.rar/
http://ifile.it/q8svebm/concrete_fracture_models_applications.rar
4shared|depostefiles|hotfile|rapidshare|easy-share|filefactory|uploaded.to:
http://www.interupload.com/files/1KPWFGQA/concrete_fracture_models_applications.rar_links
دانلود مجموعه ای از کتاب های لاتین در زمینه بتن و سازه های بتنی
