PSI - Issue 26

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 il l li t . i ir t. i i Structural Integrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia .elsevier.co /locate/procedia

ScienceDirect

Procedia Structural Integrity 26 (2020) 354–359

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© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of MedFract1 organizers Abstract This paper offers a novel and forward-looking approach to the concept of structural integrity, comprising and covering all length scales in the conceptual framework of the innovative concepts of mega- , macro -, micro- and nano-structural integrity , and thus the science of fracture mechanics & structural integrity can be considered as a branch of material science & engineering, and the novel concept of material integrity can also be coined, since crack-like defects can affect material behavior. In this conceptual framework, any material can be considered as a structure (a quite more general concept with a broader meaning and comprising also, e. g., the structure of a Bach’s fugue or of a Beethoven’s symphony), such a structure being analyzable at different geometric levels or length scales: mega-, macro-, micro- and nano-levels. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of MedFract1 organizers Keywords: structural integrity; megastructural integrity; macrostructural integrity; microstructural integrity; nanostructural integrity; material integrity. 1. Introduction The concept of structural integrity has a very broad nature that can be analysed from a multiple perspective. In particular, different length scales of analysis (mega, macro, micro and nano) can be used in the form of multi-scale approach and the relationship between the concepts of material and structure may be the matter of discussion. This paper tries to provide insight into this important issue in the road towards a new concept of structural integrity . is a er ffers a el a f r ar -l i a r ac t t e c ce t f str ct ral i te rit , c risi a c eri all le t scales in the conceptual framework of the innovative concepts of mega- , macro -, micro- and nano-structural integrity , and thus t e scie ce f fract re ec a ics & structural integrity can be considered as a branch of material science & engineering, and the novel concept of material integrity ca als e c i e , si ce crac -li e efects ca affect aterial e a i r. I t is c ce t al fra e r , a aterial ca e c si ere as a str ct re (a ite re e eral c ce t it a r a er ea i a c risi als , e. ., t e str ct re f a ac ’s f e r f a eet e ’s s ), s c a str ct re ei a al za le at iffere t e etric le els r le t scales: e a-, acr -, icr - a a -le els. e t rs. lis e lse ier B.V. This is a e access article er t e - - lice se ( tt ://creati ec s. r /lice ses/ - c- / . /) eer-re ie er res si ilit f e ract r a izers ey ords: structural integrity; egastructural integrity; acrostructural integrity; icrostructural integrity; nanostructural integrity; aterial integrity. . I t ti t f str t r l i t rit s r r t r t t l s fr lti l rs ti . I rti l r, iff r t l t s l s f l sis ( , r , i r ) s i t f r f lti-s l r t r l ti s i t t ts f t ri l str t r t tt r f is ssi . is r tri s t r i i si t i t t is i rt t iss i t r t r s t f str t r l i t rit . The 1 st Mediterranean Conference on Fracture and Structural Integrity, MedFract1 Towards a new concept of structural integrity Jesús Toribio * Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain it rr f r r t r tr t r l I t rit , r t i i racture Structural Integrity esearch roup ( SI ), niversity of Sala anca ( S ) . .S., a pus iriato, vda. equejo 33, 49022 a ora, Spain str ct

* Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es * orresponding author. el.: 34-677566723; fax: 34-980545002. - ail address: toribio usal.es

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of MedFract1 organizers lse ier B.V. This is an open access article under the CC BY-NC-ND lice se ( tt ://creati ec s. r /lice ses/ - c- / . /) eer-re ie er res si ilit f e ract r a izers 2452-3216 e t rs. lis e

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of MedFract1 organizers 10.1016/j.prostr.2020.06.045