Results 61 to 70 of about 31,412 (196)

Investigation by Digital Image Correlation of Mixed Mode I and II Fracture Behavior of Metallic IASCB Specimens with Additive Manufactured Crack-Like Notch

open access: yesMetals, 2020
This work investigates the fracture behavior of maraging steel specimens manufactured by the selective laser sintering (SLS) technology, in which a crack-like notch (sharp notch) was directly produced during the additive manufacturing (AM) process.
Ivo Campione   +5 more
doaj   +1 more source

A plane strain analysis of the blunted crack tip using small strain deformation plasticity theory [PDF]

open access: yes
A deformation plasticity analysis of the tip region of a blunted crack in plane strain is presented. The power hardening material is incompressible both elastically and plastically, in order to simulate behavior of a stress freezing material above ...
Mcgowan, J. J., Smith, C. W.
core   +1 more source

Development and validation of a high constraint modified boundary layer finite element model [PDF]

open access: yes, 2011
When a notched structure is loaded, its behaviour is not only affected by the material properties but also by the geometry (of both the structure and the defect) and loading condition, alternatively termed as constraint condition. Therefore, the relation
De Waele, Wim   +2 more
core  

Laws of crack motion and phase-field models of fracture

open access: yes, 2008
Recently proposed phase-field models offer self-consistent descriptions of brittle fracture. Here, we analyze these theories in the quasistatic regime of crack propagation.
Adda-Bedia   +38 more
core   +2 more sources

Transverse shear effects on the stress-intensity factor for a circumferentially cracked, specially orthotropic cylindrical shell [PDF]

open access: yes
The problem of a cylindrical shell containing a circumferential through crack is considered by taking into account the effect of transverse shear deformations.
Delale, F., Erdogan, F.
core   +1 more source

Experimental Study on the Fracture Process Zone Characteristics in Concrete Utilizing DIC and AE Methods

open access: yesApplied Sciences, 2019
The present work focuses on investigating the characteristics of the fracture process zone (FPZ) in concrete. The Single-edge notched (SEN) concrete beams under three-points bending are employed for conducting mode I fracture propagation.
Shuhong Dai, Xiaoli Liu, Kumar Nawnit
doaj   +1 more source

Stress intensity factors of composite orthotropic plates containing periodic buffer strips [PDF]

open access: yes
The fracture problem of laminated plates which consist of bonded orthotropic layers is studied. The fields equations for an elastic orthotropic body are transformed to give the displacement and stress expressions for each layer or strip.
Delale, F., Erdogan, F.
core   +1 more source

Stress and Fracture Analyses Under Elastic-plastic and Creep Conditions: Some Basic Developments and Computational Approaches [PDF]

open access: yes, 1983
A new hybrid-stress finite element algorith, suitable for analyses of large quasi-static deformations of inelastic solids, is presented. Principal variables in the formulation are the nominal stress-rate and spin.
Atluri, S. N.   +2 more
core   +1 more source

Fingering to fracturing transition in a transient gel

open access: yes, 2013
Fracture processes are ubiquitous in soft materials, even in complex fluids, subjected to stresses. To investigate these processes in a simple geometry, we use a model self-assembled transient gel and study the instability patterns obtained in a radial ...
Foyart, Guillaume   +3 more
core   +3 more sources

A New Scheme for Crack Growth Modeling by Coupling Modified Quarter Point Crack-Tip Element and the Level Set Method

open access: yesThe Journal of Engineering Research, 2013
In this paper, an efficient, numerical procedure is presented to track crack growth modeling without remeshing. The method's key feature is the coupling of a modified quarter-point crack tip element (MQPE) with the level set method (LSM) for crack growth
Y Abdelaziz
doaj   +1 more source

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