Results 21 to 30 of about 50,764 (304)

Effective elastic moduli of two-dimensional solids with multiple cracks [PDF]

open access: yes, 1998
An accurate method which directly accounts for the interactions between different microcracks is used for analyzing the elastic problem of multiple cracks solids. The effective elastic moduli for randomly oriented cracks and parallel cracks are evaluated
Zhan, S (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech Continuous Media, Beijing 100080, Peoples R China.   +3 more
core   +1 more source

Transition from multiple macro-cracking to multiple micro-cracking in cementitious composites

open access: yesTsinghua Science and Technology, 2008
Abstract This paper presents an experimental study of the possibility of transition from multiple macro-cracking to multiple micro-cracking in cementitious composites. Conventional polyvinyl alcohol fiber reinforced cementitious composites normally exhibit macroscopic strain-hardening and multiple cracking after the first cracks appear.
Jun Zhang, Bing Leng
openaire   +1 more source

A numerical study on impact and compression after impact behaviour of variable angle tow laminates [PDF]

open access: yes, 2013
Recent developments of variable angled tow (VAT) technology have indicated that variable stiffness composite laminates offer a strong potential for structural tailoring.
Dang, Thi D., Hallett, Stephen R.
core   +1 more source

A predictive fatigue life model for anodized 7050 aluminium alloy [PDF]

open access: yes, 2013
The objective of this study is to predict fatigue life of anodized 7050 aluminum alloy specimens. In the case of anodized 7050-T7451 alloy, fractographic observations of fatigue tested specimens showed that pickling pits were the predominant sites for ...
Chaussumier, Michel   +4 more
core   +1 more source

Transient response of coplanar interfacial cracks between two dissimilar piezoelectric strips under anti-plane mechanical and in-plane electrical impacts [PDF]

open access: yes, 2003
The dynamic response of multiple coplanar interface cracks between two dissimilar piezoelectric strips subjected to mechanical and electrical impacts is investigated. Solutions to two kinds of electric boundary conditions on crack surfaces, i.e. electric
Feng, W, Zou, Z, Liu, J, Su, RKL
core   +1 more source

An application of Rayleigh quotient for crack detection in simply supported beam

open access: yesVietnam Journal of Mechanics, 2023
An explicit expression of natural frequencies through crack parameters is derived for multiple cracked beams with simply supported boundaries using the Rayleigh quotient.
Duong The Hung
doaj   +1 more source

Dynamic stress intensity factors of interacting branched cracks [PDF]

open access: yesMATEC Web of Conferences, 2019
In the present work the boundary element method (BEM) is applied to analysis of statically and dynamically loaded infinite plates with multiple stationary branched cracks. The material of the plates is linear-elastic, homogenous and isotropic.
Fedeliński Piotr
doaj   +1 more source

Effect of Crack Interval on Multiple Crack Propagation Behavior

open access: yesJournal of Computational Science and Technology, 2007
In the authors' previous study, fatigue crack propagation tests were performed using four-point bending specimens with multiple parallel edge notches at regular intervals of 10 mm. In this study, similar tests were carried out using the specimens with crack intervals of 5 mm or 2.5 mm.
KAGAWA, Hiroyuki   +3 more
openaire   +2 more sources

Estimation of Stress Intensity Factor by Using a New Fast Multipole Dual-Boundary Element Method

open access: yesMathematics
Cracks and defects are inevitable during the long-term use of structures. This study focuses on determining the stress intensity factors of multi-cracked structures by using a new fast multipole dual boundary element method.
Cong Li, Yan Meng, Bin Hu, Zhongrong Niu
doaj   +1 more source

Interacting multiple cracks in piezoelectric materials

open access: yes, 1999
In this paper, a method is presented to calculate the plane electro-elastic fields in piezoelectric materials with multiple cracks. The cracks may be distributed randomly in locations, orientations and sizes.
韩学礼   +2 more
core   +1 more source

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