Size effect on structural strength: a review
Summary The article attempts a broad review of the problem of size effect or scaling of failure, which has recently come to the forefront of attention because of its importance for concrete and geotechnical engineering, geomechanics, arctic ice engineering, as well as for designing large load-bearin...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.518.9255 http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/S38.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.518.9255 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.518.9255 2023-05-15T15:09:26+02:00 Size effect on structural strength: a review Z. P. Bazïant The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.518.9255 http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/S38.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.518.9255 http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/S38.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/S38.pdf text ftciteseerx 2016-01-08T09:59:54Z Summary The article attempts a broad review of the problem of size effect or scaling of failure, which has recently come to the forefront of attention because of its importance for concrete and geotechnical engineering, geomechanics, arctic ice engineering, as well as for designing large load-bearing parts made of advanced ceramics and composites, e.g. for aircraft or ships. First, the main results of Weibull statistical theory of random strength are brie¯y summarized, and its applicability and limitations described. In this theory as well as plasticity, elasticity with a strength limit, and linear elastic fracture mechanics (LEFM), the size effect is a simple power law, because no characteristic size or length is present. Attention is then focused on the deterministic size effect in quasibrittle materials which, because of the existence of a non-negligible material length characterizing the size of the fracture process zone, represents the bridging between the simple power-law size effects of plasticity and of LEFM. The energetic theory of quasibrittle size effect in the bridging region is explained, and then a host of recent re®nements, extensions and rami®cations are discussed. Comments on other types of size effect, including that which might be associated with the fractal geometry of fracture, are also made. The historical development of the size-effect theories is outlined, and the recent trends of research are emphasized. Key words Scaling, size effect, fracture mechanics, quasibrittle materials, asymptotic methods 1 Text Arctic Unknown Arctic |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Summary The article attempts a broad review of the problem of size effect or scaling of failure, which has recently come to the forefront of attention because of its importance for concrete and geotechnical engineering, geomechanics, arctic ice engineering, as well as for designing large load-bearing parts made of advanced ceramics and composites, e.g. for aircraft or ships. First, the main results of Weibull statistical theory of random strength are brie¯y summarized, and its applicability and limitations described. In this theory as well as plasticity, elasticity with a strength limit, and linear elastic fracture mechanics (LEFM), the size effect is a simple power law, because no characteristic size or length is present. Attention is then focused on the deterministic size effect in quasibrittle materials which, because of the existence of a non-negligible material length characterizing the size of the fracture process zone, represents the bridging between the simple power-law size effects of plasticity and of LEFM. The energetic theory of quasibrittle size effect in the bridging region is explained, and then a host of recent re®nements, extensions and rami®cations are discussed. Comments on other types of size effect, including that which might be associated with the fractal geometry of fracture, are also made. The historical development of the size-effect theories is outlined, and the recent trends of research are emphasized. Key words Scaling, size effect, fracture mechanics, quasibrittle materials, asymptotic methods 1 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Z. P. Bazïant |
spellingShingle |
Z. P. Bazïant Size effect on structural strength: a review |
author_facet |
Z. P. Bazïant |
author_sort |
Z. P. Bazïant |
title |
Size effect on structural strength: a review |
title_short |
Size effect on structural strength: a review |
title_full |
Size effect on structural strength: a review |
title_fullStr |
Size effect on structural strength: a review |
title_full_unstemmed |
Size effect on structural strength: a review |
title_sort |
size effect on structural strength: a review |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.518.9255 http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/S38.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/S38.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.518.9255 http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/S38.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766340633445793792 |