Results 21 to 30 of about 968,727 (292)

Structural Steel Tensile Fracture-Inception Prevention Limit State and Ductility Criteria

open access: yesCivil and Environmental Engineering, 2020
This paper proposes using the tensile-fracture-inception-prevention (TFIP) limit state and ductility parameter/criterion for a safer fracture-resistant design of the tension members of steel structures.
Adewole Kazeem Kayode   +1 more
doaj   +1 more source

Modified Hoek-Brown criterion model for laminated rock based on fracture mechanics

open access: yes矿业科学学报, 2022
Based on the fracture mechanics theory of the isotropic Hoek-Brown strength criterion, this paper established the initiation conditions of the bifurcated microcrack along bedding which begins with the meso-fracture mechanism of laminated rocks.
Li Yingjie   +4 more
doaj   +1 more source

A Fracture Criterion for Snow [PDF]

open access: yesJournal of Glaciology, 1977
AbstractA fracture criterion is developed for fine-grained granular snow and is shown to predict accurately the conditions required for fracture under multiaxial states of stress. The criterion is applied to two specific types of deformation histories.
openaire   +1 more source

Fracture criterion based on the higher-order asymptotic fields [PDF]

open access: yes, 1995
A complete development for the higher-order asymptotic solutions of the crack tip fields and finite element calculations for mode I loading of hardening materials in plane strain are performed.
王自强, 魏悦广
core   +2 more sources

A criterion for identifying hydraulic fractures crossing natural fractures in 3D space

open access: yesPetroleum Exploration and Development, 2014
Based on the analysis of the stress fields near the hydraulic fracture tip and on the natural fracture surface, a criterion for identifying hydraulic fractures crossing natural fractures was proposed. A series of hydraulic fracturing tests were conducted
Wan CHENG   +5 more
doaj   +1 more source

Research on the Size Effect of Unstable Fracture Toughness by the Modified Maximum Tangential Stress (MMTS) Criterion

open access: yesAdvances in Civil Engineering, 2020
This paper investigates the unstable fracture toughness of specimens of different heights using the double-K model for three-point bending tests on notched concrete beams.
Jian Li   +3 more
doaj   +1 more source

Modeling of porous material fracture [PDF]

open access: yesИнженерно-строительный журнал, 2017
Wide use of various porous materials in construction engineering applications requires development of up to date methods of non-destructive characterization and optimization of such materials.
A.N. Levandovskiy   +2 more
doaj   +1 more source

Fracture failure mechanism and fracture criterion of compacted clay under compression and shear action

open access: yesYantu gongcheng xuebao, 2021
Soil cracks are often considered to be caused by tensile-shear stress. In actual engineering, the compacted clay is mostly under compressive-shear stress state.
HUANG Shi-yuan 1, 2, 4, WANG Jun-jie 2, WANG Ai-guo 3, JI En-yue 1, GUO Wan-li 1, JIN Song-yang 2
doaj   +1 more source

Application of the strain energy density criterion to ductile fracture [PDF]

open access: yes, 1985
The strain energy density criterion due to Sih is used to predict fracture loads of two thin plates subjected to large elastic-plastic deformation. The prediction is achieved with a finite element analysis which is based on Hill's variational principle ...
Chow CL, 徐纪林
core   +1 more source

Experimental and Numerical Investigation on Dynamic Shear Behavior of 30CrMnSiNi2A Steel Using Flat-Hat Specimens

open access: yesMetals
An absolutely conflicting value for the incorporation of the Lode parameter into a fracture criterion was reported in the literature when predicting the ballistic resistance of metallic plates failing through shear plugging.
Xinke Xiao   +3 more
doaj   +1 more source

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