Crack resistance of materials in the elastoplastic region under static loading

1986 ◽  
Vol 18 (2) ◽  
pp. 133-136
Author(s):  
A. A. Anokhin ◽  
M. N. Georgiev
Keyword(s):  
Crack Resistance ◽  
Static Loading ◽  
Elastoplastic Region

Adsorption reduction of the crack resistance of steel in static loading

1977 ◽  
Vol 12 (1) ◽  
pp. 20-25
Author(s):  
O. N. Romaniv ◽  
G. N. Nikiforchin ◽  
N. L. Kuklyak
Keyword(s):  
Crack Resistance ◽  
Static Loading ◽  
Adsorption Reduction

Strength and crack resistance of fibrous composite materials with polymer matrix under long-time static loading

1988 ◽  
Vol 24 (3) ◽  
pp. 340-344
Author(s):  
G. P. Zaitsev ◽  
G. V. Arkhipov
Keyword(s):  
Composite Materials ◽  
Crack Resistance ◽  
Polymer Matrix ◽  
Static Loading ◽  
Fibrous Composite ◽  
Long Time

Long-term crack resistance of aging viscoelastic composite in static loading

1999 ◽  
Vol 35 (2) ◽  
pp. 190-194 ◽  
Author(s):  
G. V. Gavrilov
Keyword(s):  
Crack Resistance ◽  
Static Loading ◽  
Viscoelastic Composite

Rapid method of determining the crack resistance of rock and brittle nonmetallic materials under static loading

1995 ◽  
Vol 31 (1) ◽  
pp. 35-42 ◽  
Author(s):  
V. G. Gribanov ◽  
G. F. Bobrov
Keyword(s):  
Crack Resistance ◽  
Rapid Method ◽  
Static Loading

Microstructural and fractographic characterization of B4C-Al cermets tested under dynamic and static loading

1989 ◽  
Vol 47 ◽  
pp. 562-563
Author(s):  
Gyeung Ho Kim ◽  
Mehmet Sarikaya ◽  
D. L. Milius ◽  
I. A. Aksay
Keyword(s):  
Thin Film ◽  
Mechanical Properties ◽  
Fracture Toughness ◽  
Static Loading ◽  
Carbon Deposition ◽  
Full Density ◽  
Unique Combination ◽  
Strong Component ◽  
Reaction Products

Cermets are designed to optimize the mechanical properties of ceramics (hard and strong component) and metals (ductile and tough component) into one system. However, the processing of such systems is a problem in obtaining fully dense composite without deleterious reaction products. In the lightweight (2.65 g/cc) B4C-Al cermet, many of the processing problems have been circumvented. It is now possible to process fully dense B4C-Al cermet with tailored microstructures and achieve unique combination of mechanical properties (fracture strength of over 600 MPa and fracture toughness of 12 MPa-m1/2). In this paper, microstructure and fractography of B4C-Al cermets, tested under dynamic and static loading conditions, are described.The cermet is prepared by infiltration of Al at 1150°C into partially sintered B4C compact under vacuum to full density. Fracture surface replicas were prepared by using cellulose acetate and thin-film carbon deposition. Samples were observed with a Philips 3000 at 100 kV.

Effect of Plastic Deformation on Hydrogen Induced Crack Resistance of API X65 Linepipe Steel

2016 ◽  
Vol 54 (4) ◽  
pp. 295-303 ◽  
Author(s):  
Kyung-Mox Cho ◽  
Joon-Ho Sung ◽  
Yun-Kyu Kim ◽  
Jong-Geol Moon ◽  
Ki-Won Kim ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Crack Resistance ◽  
Linepipe Steel

CREDO RADON UA – INFORMATION MODEL FOR CALCULATION OF ROAD CONSTRACTION

2019 ◽  
pp. 34-42
Author(s):  
Volodymyr Karedin ◽  
Nadiya Pavlenko
Keyword(s):  
Design Process ◽  
Static Loading ◽  
Computer Aided Design ◽  
Experimental Studies ◽  
Construction Materials ◽  
Residual Deformation ◽  
Road Construction ◽  
Information Support ◽  
Existing Structures ◽  
Road Pavement

CREDO RADON UA software provides an automated calculation of the strength of the pavement structures of non-rigid and rigid types, as well as the calculation of the strengthening of existing structures. In the article, one can see the main features and functionality of the CREDO RADON UA software, the main points in the calculations according to the new regulations. Information support of the design process includes necessary databases, informational and helping materials that make up the full support of the pavement design process. The concept of CREDO RADON UA 1.0 software is made on the use of elasticity theory methods in calculations of initial information models of pavements. Performing optimization calculations, the roadwear in CREDO RADON UA is designed in such a way that no unacceptable residual deformation occurs under the influence of short-term dynamic or static loading in the working layer of the earth bed and in the structural layers during the lifetime of the structure. The calculation algorithms were made in accordance with the current regulatory documents of Ukraine. CREDO RADON UA software allows user to create information bases on road construction materials and vehicles as part of the traffic flow for calculations. The presented system of automated modeling makes it easier for the customer to control the quality of design solutions, to reasonably assign designs to layers of reinforcement, to quickly make comparisons of calculations of different designs for the optimal use of allocated funds. Prospects for further improvement of the program should be the results of theoretical and experimental studies on filling the databases, which are used as information support for automated design of road structures. Keywords: CREDO RADON UA, road, computer-aided design, repair project, road pavement, strengthening, construction, rigid pavement, elasticity module, a transport stream, calculation method, information support, dynamic or static loading.

Behavior of composite shells under transverse impact and quasi-static loading

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1065-1073
Author(s):  
Brian L. Wardle ◽  
Paul A. Lagace
Keyword(s):  
Static Loading ◽  
Composite Shells ◽  
Transverse Impact

Complex study of the fracture processes in materials and structures

2018 ◽  
Vol 84 (11) ◽  
pp. 46-51 ◽  
Author(s):  
N. A. Makhutov
Keyword(s):  
Fracture Mechanics ◽  
Crack Resistance ◽  
Scientific Basis ◽  
Intensity Factors ◽  
Nonlinear Fracture Mechanics ◽  
Nonlinear Fracture ◽  
Linear Fracture ◽  
Science Technology ◽  
Fracture Processes

The results of comprehensive studies of multifactor processes, mechanisms and criteria for fracture at a variation of the crack-like defect state, loading conditions and mechanical properties of structural materials carried out in the 20th - 21st centuries are presented on the basis of monographic publications and articles published in the journal “Zavodskaya Laboratoriya. Diagnostika Materialov.” Crack resistance of materials and structures has become a key problem of the material science, technology, design, manufacture and service of structures. Fracture mechanics including estimation of the stress-strain and limiting states in a cracks tip formed a scientific basis of the crack resistance analysis Stress intensity factors (linear fracture mechanics) and strain intensity factors (nonlinear fracture mechanics) are accepted as the basic criteria of those states. The basic computational relations for construction of the fracture diagrammes which link the cracks growth with conditions of a static, cyclic, long-term, dynamic loading are presented. Parameters of computational relations are put into correspondence with the features of fracture processes on nano-, micro-, meso- and macrolevels. Prospects of the research and guidelines of further studing crack resistance are discussed.

The relationship of crack resistance and structure of a heat-affected zone of welded pipe joints

2018 ◽  
Vol 8 (2) ◽  
pp. 154-160
Author(s):  
Svetlana N. Zueva ◽  
◽  
Sergey V. Soya ◽  
Olga A. Zadubrovskaya ◽  
◽  
...  
Keyword(s):  
Crack Resistance ◽  
Heat Affected Zone ◽  
Pipe Joints ◽  
Welded Pipe ◽  
Relationship Of ◽  
The Relationship
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