Results 21 to 30 of about 2,684,787 (187)

Using DEFORM Software for Determination of Parameters for Two Fracture Criteria on DIN 34CrNiMo6

open access: yesMetals, 2020
The aim of this study was to calibrate a material model with two fracture criteria that is available in the DEFORM software on DIN 34CrNiMo6. The purpose is to propose a type of simple test that will be sufficient for the determination of damage ...
Ivana Poláková   +3 more
doaj   +1 more source

Prediction and prevention of fracture defect in plastic forming for aluminum foam sandwich panel

open access: yesJournal of Materials Research and Technology, 2021
In this study, the predicting and avoiding method of core fracture in plastic forming for aluminum foam sandwich panel (AFSP) were investigated. By observing the macroscopic core cracks and microscopic morphology of the fracture surfaces, the core ...
Xi Zhang, Qing-Min Chen, Zhong-Yi Cai
doaj   +1 more source

Experimental modelling of a mine working failure under nonuniformly distributed compression [PDF]

open access: yesE3S Web of Conferences, 2020
This paper presents a theoretical and experimental study of the fracture of a quasi-brittle geomedium containing a cylindrical opening and subjected to a nonuniformly distributed compressive load.
Suknev Sergey
doaj   +1 more source

Causes of scatter in high rate fracture testing of polymers [PDF]

open access: yes, 2013
A method based on the measurement of failure time is being developed by the European Structural Integrity Society to determine high rate fracture toughness of polymers.
Horsfall I.   +3 more
core   +1 more source

Discussion of Fracture Criteria in Spall Mechanics

open access: yesEngineering Transactions, 2015
An analysis of variety of spall criteria is discussed in this paper. Some mechanisms of the free surface creation in spall are discussed, including cleavage and fibrous separation.
P. Chevrier, J.R. Klepaczko
doaj   +1 more source

Risk factors for falls with severe fracture in elderly people living in a middle-income country: a case control study. [PDF]

open access: yes, 2008
BACKGROUND: Fracture after falling has been identified as an important problem in public health. Most studies of risk factors for fractures due to falls have been carried out in developed countries, although the size of the elderly population is ...
Coutinho, Evandro SF   +11 more
core   +2 more sources

Criteria for impulsive rock fracture

open access: yesGeophysical Research Letters, 1980
Explosive or percussive breakage of rock relies on impulsive rock fracture and both the fracture stress and fracture energy under such conditions are observed to be significantly greater than measured quasi‐statically. The implication of rate dependence has been verified in recent tensile fracture studies and in the present report this data has been ...
D. E. Grady, J. Lipkin
openaire   +1 more source

Ductile Failure Prediction of Friction Stir Welded AA7075-T6 Aluminum Alloy Weakened by a V-notch [PDF]

open access: yesJournal of Stress Analysis, 2019
With increasing applications of the Friction Stir Welding (FSW), a proper study of the fracture behavior is required. In this research, fracture behavior of AA7075-T6 alloy joint made by FSW is investigated by evaluat-ing a fracture test on the ...
A. Nouri, M. Kazemi Nasrabadi
doaj   +1 more source

Dynamic Fracture Criteria Evaluation of Bridge Structural Steel

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2011
J-integral is the main effective and commonly used tool for elastic-plastic cracked material resistance assessment. Considering ductile behavior of bridges steel integral approach is suitable for fracture toughness evaluation.
Antanas Žiliukas, Marius Gintalas
doaj   +1 more source

Fracture Mechanics Characterization of an AnisotropicGeomaterial [PDF]

open access: yes, 2012
Argillites are considered worldwide as potential host rock for high level radioactive waste given the low permeability and strong adsorption potential.
Cravero, Masantonio   +9 more
core   +1 more source

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