Results 11 to 20 of about 370,108 (311)

Implications of Realistic Fracture Criteria on Crack Morphology

open access: yesFrontiers in Physics, 2019
We study the effects realistic fracture criteria have on crack morphology obtained in numerical simulations with a stochastic discrete element method. Results are obtained with two criteria which are consistent with the theory of elasticity and compared ...
Bjørn Skjetne, Alex Hansen
doaj   +1 more source

Wheeled Vehicle Brake Drum Computation by Fracture Toughness Criteria [PDF]

open access: yesJournal of Mechanical Engineering, 2020
To ensure vehicle safety at the design stage, of primary importance is the development of a mathematical model, within whose framework it is possible to effectively predict crack initiation in the break drum of a braking wheeled vehicle.
Sahib A. Askerov
doaj   +1 more source

Fracture Behavior of Two Biopolymers Containing Notches: Effects of Notch Tip Plasticity

open access: yesApplied Sciences, 2020
This paper analyzes the notch effect on the fracture behavior of two biomaterials (a brittle bone cement and a ductile dental material) under mode I loading. U-notched Brazilian disk (UNBD) specimens of both materials were tested under remote compression,
Sahel Shahbaz   +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

Matta’s criteria may be useful for evaluating and predicting the reduction quality of simultaneous acetabular and ipsilateral pelvic ring fractures

open access: yesBMC Musculoskeletal Disorders, 2021
Background Although the incidence, types, and radiological outcomes of simultaneous ipsilateral pelvic ring and acetabular fractures have been reported, there have been no reports on factors that may affect the quality of acetabular fracture reduction ...
Yi-Hsun Yu   +5 more
doaj   +1 more source

Determination of the Values of Critical Ductile Fracture Criteria to Predict Fracture Initiation in Punching Processes

open access: yesJournal of Manufacturing and Materials Processing, 2017
Punching processes are widely used for producing automobile parts, mechanical components, and other parts. To produce highly accurate parts, it is important to estimate the ratio of the sheared surface to the cut surface.
Phyo Wai Myint   +4 more
doaj   +1 more source

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

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

Prevention and management of osteoporotic fractures by non-physician health professionals: a systematic literature review to inform EULAR points to consider [PDF]

open access: yes, 2020
Objective To perform a systematic literature review (SLR) about the effect of non-pharmacological interventions delivered by non-physician health professionals to prevent and manage osteoporotic fractures. Methods Eight clinical questions based on two
Adams, Jo   +19 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

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