Size effect in heterogeneous materials analyzed through a lattice discrete element method approach

Kosteski, Luís Eduardo; Iturrioz, Ignácio; Lacidogna, Giuseppe; Carpinteri, Alberto

doi:10.1016/j.engfracmech.2020.107041

Cited by 25 publications

(17 citation statements)

References 52 publications

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“…The size of the standard sample differs from that of the test sample, so is the strength. The scale effect of rock-like materials was used to estimate the UCS of the test sample based on that of the standard sample [87][88][89][90][91][92][93].…”

Section: Detection Results Of Vibration Frequency Of Steel Barmentioning

confidence: 99%

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

Shi

Song

Chen

et al. 2020

Construction and Building Materials

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Section: Detection Results Of Vibration Frequency Of Steel Barmentioning

confidence: 99%

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

Shi

Song

Chen

et al. 2020

Construction and Building Materials

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“…The value of ε u is computed by considering the dissipated energy released when the element fails [51]:…”

Section: Lattice Discrete Element Methods Descriptionmentioning

confidence: 99%

“…When ε p is equal to ε u , the minimum area of bilinear constitutive law is obtained, as ε u has to be larger or equal to ε p in order to ensure the energy equilibrium into the element. In such a condition, a limit relationship between the equivalent length d eq and the element length L i can be found [51]:…”

Section: Lattice Discrete Element Methods Descriptionmentioning

confidence: 99%

A Novel Implementation of the LDEM in the Ansys LS-DYNA Finite Element Code

et al. 2021

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In this paper, a novel implementation of the Lattice Discrete Element Method (LDEM) is proposed: in particular, the LDEM is implemented in the Ansys LS-DYNA finite element code. Such an implementation is employed to evaluate the fracture behaviour of sandwich panels under bending. First, the novel hybrid model proposed is validated by simulating some three-point bending experimental tests carried out at the University of Parma, and then it is used to model the fracture behaviour of sandwich panels under four-point bending. Failure mechanisms, damage locations, and load-deflection curves are numerically determined by employing such a novel model, and the results show a good agreement with the available experimental findings.

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“…At the present, there are some ways to determine the characteristic length scale. One way is that the length scale parameter is adjusted to obtain the experimental result (phenomenologically) another approach is to extract from experimental work (Kosteski et al., 2020; Rossi Cabral et al., 2019) or to determine it based on the material parameters (stress intensity, distance, etc.) (Taylor, 2007).…”

Section: Research Needed and Conclusionmentioning

confidence: 99%

A review of continuum damage and plasticity in concrete: Part II – Numerical framework

Voyiadjis

Ahmed

Park

2021

International Journal of Damage Mechanics

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In this part II, companion article, we present the numerical review of continuum damage mechanics and plasticity in the context of finite element. The numerical advancements in local, nonlocal, and rate-dependent models are presented. The numerical algorithms, type of elements utilized in numerical analysis, the commercial software’s or in-house codes used for the analysis, iterative schemes, explicit or implicit approaches to solving finite element equations, and degree of continuity of element are discussed in this part. Lastly, some open issues in concrete damage modeling and future research needed are also discussed.

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Size effect in heterogeneous materials analyzed through a lattice discrete element method approach

Cited by 25 publications

References 52 publications

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

A Novel Implementation of the LDEM in the Ansys LS-DYNA Finite Element Code

A review of continuum damage and plasticity in concrete: Part II – Numerical framework

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