Rate-Dependent Scaling of Dynamic Tensile Strength of Quasibrittle Structures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU129855" target="_blank" >RIV/00216305:26110/18:PU129855 - isvavai.cz</a>
Result on the web
<a href="http://appliedmechanics.asmedigitalcollection.asme.org/article.aspx?articleid=2664355" target="_blank" >http://appliedmechanics.asmedigitalcollection.asme.org/article.aspx?articleid=2664355</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/1.4038496" target="_blank" >10.1115/1.4038496</a>
Alternative languages
Result language
angličtina
Original language name
Rate-Dependent Scaling of Dynamic Tensile Strength of Quasibrittle Structures
Original language description
This paper investigates the effect of strain rate on the scaling behavior of dynamic tensile strength of quasibrittle structures. The theoretical framework is anchored by a rate-dependent finite weakest link model. The model involves a rate-dependent length scale, which captures the transition from localized damage to diffused damage with an increasing strain rate. As a result, the model predicts a rate- and size-dependent probability distribution function of the nominal tensile strength. The transitional behavior of the strength distribution directly leads to the rate and size effects on the mean and standard deviation of the tensile strength. The model is verified by a series of stochastic discrete element simulations of dynamic fracture of aluminum nitride specimens. The simulations involve a set of geometrically similar specimens of various sizes subjected to a number of different strain rates. Both random microstructure geometry and fracture properties are considered in these simulations. The simulated damage pattern indicates that an increase in the strain rate results in a more diffusive cracking pattern, which supports the theoretical formulation. The simulated rate and size effects on the mean and standard deviation of the nominal tensile strength agree well with the predictions by the rate-dependent finite weakest link model.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/GJ15-19865Y" target="_blank" >GJ15-19865Y: Discrete fracture models: adaptive remeshing, energy release rate, and stress along boundaries</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
ISSN
0021-8936
e-ISSN
1528-9036
Volume of the periodical
85
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
„021003-1“-„021003-12“
UT code for WoS article
000418706400003
EID of the result in the Scopus database
2-s2.0-85038374144