Results 1 to 10 of about 2,733 (260)

A generalized nonlinear three-dimensional failure criterion based on fracture mechanics

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Based on fracture mechanics theory and wing crack model, a three-dimensional strength criterion for hard rock was developed in detail in this paper. Although the basic expression is derived from initiation and propagation of a single crack, it can be ...
Zhaofeng Wang   +3 more
doaj   +2 more sources

Generalised fracture mechanics approach to the interfacial failure analysis of a bonded steel-concrete joint [PDF]

open access: yesFracture and Structural Integrity, 2017
Steel-concrete joints are often made by welded shear studs. However, this connection reduces the fatigue strength, especially in situations where locally concentrated loads occur with a large number of load cycles e.g. in bridge decks.
W. De Corte   +5 more
doaj   +3 more sources

Review of time-dependent fracture model of concrete

open access: yes矿业科学学报, 2021
The integrity of concrete structures under strong earthquakes and the stability of concrete structures with cracks are concerns of national security strategies.These two issues are closely related to the time-dependent fracture behavior of concrete.The ...
Chen Yulong, Cao Peng
doaj   +1 more source

Experimental and theoretical assessment of the long-term strength of lightweight concrete and its components under compression and tension, taking into account the macrostructure of the material [PDF]

open access: yesE3S Web of Conferences, 2021
Experimental studies of concrete static fatigue require quite laborious and time-consuming tests. Insufficient data on static fatigue for concrete and the absence of an adequate theoretical base until recently did not allow using a generalized approach ...
Raupov Choriqul   +3 more
doaj   +1 more source

Critical applied stresses for a crack initiation from a sharp V-notch [PDF]

open access: yesFracture and Structural Integrity, 2014
The aim of the paper is to estimate a value of the critical applied stress for a crack initiation from a sharp V-notch tip. The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent ...
L. Náhlík, P. Huta, K. Štegnerová
doaj   +2 more sources

Crack onset assessment near the sharp material inclusion tip by means of modified maximum tangential stress criterion [PDF]

open access: yesFracture and Structural Integrity, 2017
In the case of particle reinforced composites, where the particles are in a form of sharp material inclusions, singular stress concentration exists on each tip of each inclusion.
O. Krepl, J. Klusk
doaj   +5 more sources

Brittle Failure of Nanoscale Notched Silicon Cantilevers: A Finite Fracture Mechanics Approach

open access: yesApplied Sciences, 2020
The present paper focuses on the Finite Fracture Mechanics (FFM) approach and verifies its applicability at the nanoscale. After the presentation of the analytical frame, the approach is verified against experimental data already published in the ...
Pasquale Gallo, Alberto Sapora
doaj   +1 more source

Deflection of an eccentric crack under mixed-mode conditions in an SCB specimen

open access: yesBudownictwo o Zoptymalizowanym Potencjale Energetycznym, 2021
Crack propagation under mixed-mode (I + II) conditions has been investigated in a semicircular disc where various levels of mixed-mode can be achieved by means of different geometry configurations.
Lucie Malíková   +3 more
doaj   +1 more source

Fracture Mechanics Modeling of Fatigue Behaviors of Adhesive-Bonded Aluminum Alloy Components

open access: yesMetals, 2022
Adhesive-bonding has become increasingly adopted for multi-material lightweight applications (e.g., automotive structures). There is a growing interest in understanding the fatigue behaviors in this type of joint for supporting structural durability ...
Yuning Zhang, Pingsha Dong, Xianjun Pei
doaj   +1 more source

Multi-parameter fracture mechanics: crack path in a mixed-mode specimen

open access: yesFracture and Structural Integrity, 2019
A mixed-mode geometry has been chosen to investigate a crack propagation using the multi-parameter fracture mechanics concept. The so-called Williams series expansion is used for the crack-tip stress field approximation.
L. Mal�kov�   +3 more
doaj   +1 more source

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