Results 21 to 30 of about 465,067 (266)

How to obtain a more accurate maximum energy release rate for mixed mode fracture

open access: yesForces in Mechanics, 2022
Energy release rate (ERR) is considered one of the most widely employed fracture criteria. However, for mixed mode fracture situations, the exact computation of ERR for an infinitesimal branch crack is challenging.
Huihan Chen   +3 more
doaj   +1 more source

Interface Crack Approaching a Three-Material Joint

open access: yesApplied Sciences, 2020
The problem of an interface crack that approaches a three-material joint with two interfaces is analyzed in this paper. Two possible cases are considered: the crack that lies at the interface between materials A and B, approaching the joint of materials ...
Jelena M. Djoković   +3 more
doaj   +1 more source

A statistical damage constitutive rock model based on elastic energy release rate

open access: yesShuiwen dizhi gongcheng dizhi, 2021
In order to truly reveal the mechanism of rock deformation and failure and the nature of rock material damage, based on the analysis of rock material deformation law and mechanical characteristics, a rock damage constitutive model based on elastic energy
Wenbo LIU   +3 more
doaj   +1 more source

Effects of HfC Particles on Crack Initiation and Propagation Behavior of WC/Co Composites

open access: yesXibei Gongye Daxue Xuebao, 2019
Tungsten carbide composites were prepared by cold-pressing and hot-pressing sintering; fracture toughness and bending strength of the specimens were tested. The microstructures of HfC/WC/Co composites were observed with the SEM.

doaj   +1 more source

The role of intralaminar damages on the delamination evolution in laminated composite structures

open access: yesHeliyon, 2023
Delamination is a major failure mode affecting laminated composite structures. This failure mechanism, if not properly monitored, can lead to uncontrolled cracks growth and premature structural collapse.
A. Russo, C. Palumbo, A. Riccio
doaj   +1 more source

Equilibrium states and stability of pre-tensioned adhesive tapes

open access: yesBeilstein Journal of Nanotechnology, 2014
In the present paper we propose a generalization of the model developed in Afferrante, L.; Carbone, G.; Demelio, G.; Pugno, N. Tribol. Lett. 2013, 52, 439–447 to take into account the effect of the pre-tension in the tape.
Carmine Putignano   +3 more
doaj   +1 more source

The surface-forming energy release rate versus the local energy release rate

open access: yes, 2016
This paper identifies two ways to extract the energy (or power) flowing into a crack tip during propagation based on the power balance of areas enclosed by a stationary contour and a comoving contour. It is very interesting to find a contradiction that two corresponding energy release rates (ERRs), a surface-forming ERR and a local ERR, are different ...
Xiao, Si   +4 more
openaire   +2 more sources

Computation of Energy Release Rates for a Nearly Circular Crack [PDF]

open access: yesMathematical Problems in Engineering, 2011
This paper deals with a nearly circular crack, Ω in the plane elasticity. The problem of finding the resulting shear stress can be formulated as a hypersingular integral equation over a considered domain, Ω and it is then transformed into a similar equation over a circular region, D, using conformal mapping.
Nik Mohd Asri Nik Long   +2 more
openaire   +2 more sources

Rockburst Identification Method Based on Energy Storage Limit of Surrounding Rock

open access: yesEnergies, 2020
Rockbursts are one of the prominent problems faced by deep underground engineering. Not only do they affect the construction progress, but they also threaten the safety of construction personnel and equipment, and may even induce earthquakes.
Zhiqiang Zhang   +3 more
doaj   +1 more source

Evaluation of detailed transverse crack propagation toward thickness direction for CF/PEEK quasi-isotropic laminates under fatigue loading

open access: yesMechanical Engineering Journal, 2020
Carbon fiber (CF) reinforced polyether ether ketone (PEEK) laminates are applied to the members of transportation structures exposed to severe conditions, because carbon fibers and PEEK have excellent heat-resistant and chemical stability.
Dai TSUNODA   +6 more
doaj   +1 more source

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