Effects of microstructure and crystallography on crack path and intrinsic resistance to shear-mode fatigue crack growth [PDF]
The paper focuses on the effective resistance and the near-threshold growth mechanisms in the ferritic-pearlitic and the pure pearlitic steel. The influence of microstructure on the shear-mode fatigue crack growth is divided here into two factors: the ...
J. Pokluda +3 more
doaj +4 more sources
Crack tip fields in elastic-plastic and mixed mode I+II+III conditions, finite elements simulations and modeling [PDF]
This paper is devoted to the analysis of the load path effect on I+II+III mixed mode fatigue crack propagation in a 316L stainless steel. Experiments were conducted in mode I+II and in mode I+II+III.
F. Fremy, +3 more
doaj +3 more sources
On the connection between mode II and mode III effective thresholds in metals [PDF]
Closure-free long cracks under the remote mode III loading grow in a more complicated way than those under the remote mode II. For bcc metals, a coplanar in-plane spreading of tongues driven by the local mode II loading components at crack-front ...
Tomas Vojtek +2 more
doaj +2 more sources
Tensile and tear-type fracture toughness of gypsum material: Direct and indirect testing methods
In this context, four specimens, i.e. (i) circumferentially notched cylindrical torsion (CNCT), (ii) circumferentially notched cylindrical direct tension (CNCDT), (iii) edge notch disc bend (ENDB) and (iv) three-point bend beam (3PBB), were utilized to ...
Daniel Pietras +3 more
doaj +1 more source
The effect of varying loading directions and loading levels on crack growth at 2D- and 3D-mixed-mode-loadings [PDF]
While product’s operation the loading situation commonly changes. The local loading situation on an existing crack then can shift to a combined loading, composed of mode I, mode II and mode III, and consequently influence the product’s durability ...
A. Eberlein, H.A. Richard
doaj +2 more sources
Perturbation of mode III interfacial cracks [PDF]
We consider the perturbation problem of a Mode III interfacial crack. The perturbation is of geometrical type and can be both perturbation of the crack faces and perturbation of the interface, which can deviate from the initial straight line configuration.
Piccolroaz, A, Mishuris, G, Movchan, AB
openaire +4 more sources
Crack front segmentation under combined mode I - and mode III - loading [PDF]
ABSTRACT. This article approaches the topic of crack initiation and crack growth behaviour under combined mode I- and mode III-loading conditions. Such loading combinations especially lead to a crack, which unscrew out of its initial orientation
A. Eberlein , H. A. Richard
doaj +1 more source
Finite element modeling and experimental studies on mixed mode-I/III fracture specimens [PDF]
In this study, finite element modeling and experimental studies on a mode-I/III specimen similar to the compact tension specimen are presented. By using bolts, the specimen is attached to two loading apparatus that allow different levels of mode-I/III ...
M. Bozkurt +3 more
doaj +1 more source
Fracture Toughness of Reactive Powder Fibrous Concrete Composites under Pure and Mixed Modes (I/III)
Reactive Powder Concretes (RPC) are well known for their exceptional strength properties and durability properties. The use of Supplementary Cementitious Materials (SCM) is the best way to enhance the strength and durability characteristics of RPCs ...
Sreekumaran Sreenath +2 more
doaj +1 more source
Preliminary thermomechanical loading promotes increase of resistance to brittle fracture of heat-resistant steels with fractures and is the fundamental basis of the perspective method of increasing the resource for ensuring safe operation of power ...
Pokrovsky Volodymyr V. +2 more
doaj +7 more sources

