Results 41 to 50 of about 2,684,787 (187)

Second law of thermodynamics and the failure of rock materials [PDF]

open access: yes, 2001
The relation of nonequilibrium thermodynamics to some failure and fracture theories of rock mechanics is investigated. The basic concepts are given to connect failure to the properties of material equations describing the elastic properties.
Ván, Péter, Vásárhelyi, Balázs
core   +1 more source

Strain-based criteria for mixed-mode fracture of polycrystalline graphite

open access: yes, 2016
The mixed-mode brittle fracture of two types of commercial graphite is investigated focusing on strain-based fracture criteria. The previously published experiments using centrally-cracked Brazilian disk specimens subjected to mixed-mode loadings are ...
Aliha, M. R. M.   +3 more
core   +2 more sources

Hip fracture or not? The reversed prevalence effect among non-experts’ diagnosis

open access: yesCognitive Research, 2023
Despite numerous investigations of the prevalence effect on medical image perception, little research has been done to examine the effect of expertise, and its possible interaction with prevalence.
Hanshu Zhang   +6 more
doaj   +1 more source

Research on Mixed-mode Fracture Properties and Criteria by using sandstone SCB Specimen

open access: yes工程科学与技术, 2016
:The researching on the effect of the crack’s inclined angle to the mixed-mode fracture properties of the semi-circular bending (SCB) specimen is presented. A series of experiments were conducted by SCB specimens containing an edge crack and subjected to
Feng Ruo Qi, Zhu Zhe Ming
doaj  

A new specimen for mixed mode-I/II fracture tests: Modeling, experiments and criteria development

open access: yes, 2017
Details related to modeling and experimental analyses for a new type of specimen, which is proposed to be used for mixed mode-I/II fracture tests, are presented.
Ayhan, Ali Osman   +4 more
core   +1 more source

Crack Initiation Criteria and Fracture Simulation for Precracked Sandstones

open access: yesAdvances in Materials Science and Engineering, 2019
The friction coefficient, tip curvature, and different-width crack state influence the stress intensity factor (SIF). The maximum circumferential tensile stress (MTS) and minimum strain energy density criterion (S) face challenges in explaining the mode ...
R. Q. Huang, L. Z. Wu, B. Li
doaj   +1 more source

The behavior of statically-indeterminate structural members and frames with cracks present [PDF]

open access: yes, 2009
Arts et Métiers ParisTech, invitation en tant que professeur invité de Paul C. Paris au LAMEFIPCrack stability is discussed as affected by their presence in statically-indeterminate beams, frames, rings, etc. loaded into the plastic range.
PARIS, Paul C.   +4 more
core   +1 more source

Influence of crack face boundary conditions on the fracture of polycrystalline piezoelectric ceramics

open access: yesИнженерно-строительный журнал, 2014
Today structural health monitoring is a widely developing field that enables real-time damage detection of engineering structures and elements. Monitoring is carried out using a set of sensors, most of which contain piezoelectric materials.
I.V. Ivashov, A.S. Semenov
doaj   +1 more source

Fracture of the Wrist and Incidence of the Complex Regional Pain Syndrome Type 1: A Case Series Study

open access: yesJournal of Orthopedic and Spine Trauma, 2020
Background: Complex regional pain syndrome (CRPS) is a painful syndrome with signs such as swelling, restriction of motion, and discoloration of the skin and bone. CRPS is divided into two types based on neurological injuries. Type 1 CRPS (CRPS-I), which
Payam Vezvaei   +3 more
doaj   +1 more source

Experimental characterization and numerical modeling of micromechanical damage under different stress states [PDF]

open access: yes, 2013
The use of HSLA steels for the manufacture of automotive components is interesting from an engineering point of view. This family of steels, while possessing high strength, also has good formability and can be used in forming manufacturing processes.
GERMAIN, Guénaël   +3 more
core   +1 more source

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