Relevant bibliographies by topics / Crack with plastic end zones

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  1. Journal articles
  2. Dissertations / Theses
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Academic literature on the topic 'Crack with plastic end zones'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Crack with plastic end zones"

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Rafail Mehdiyev, Rafail Mehdiyev, Alekber Mehdiyev Alekber Mehdiyev, and Rustam Mammadov Rustam Mammadov. "ELASTOPLASTIC PROBLEM FOR PERFORATED PLATE IN TRANSVERSE SHEAR." ETM - Equipment, Technologies, Materials 08, no. 04 (2021): 29–40. http://dx.doi.org/10.36962/etm0804202129.

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A solution is given to the problem of transverse shear of a thin plate clamped along the edges of the holes and weakened by a doubly periodic system of rectilinear through cracks with plastic end zones collinear to the abscissa and ordinate axes of unequal length. General representations of solutions are constructed that describe the class of problems with a doubly periodic stress distribution outside circular holes and rectilinear cracks with end zones of plastic deformations. Satisfying the boundary conditions, the solution of the problem of the theory of shear plates is reduced to two infin
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Yang, Jingbo, Fujun Zhang, Jingshe Li, et al. "Bending and Straightening of a Medium Carbon Steel Continuous Casting Slab with Low Temperature End Plastic Groove." Materials 15, no. 7 (2022): 2609. http://dx.doi.org/10.3390/ma15072609.

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The high temperature brittleness range of medium carbon microalloyed steel under an actual continuous casting process was determined by the high temperature tensile test. The test results revealed that only a third of the brittle temperature range from 650–825 °C was due to intergranular ferrite in the experimental steel. In addition, it was found that the plastic recovery was fast and stable when the temperature was lower than 725 °C (the lowest plastic temperature). Bending/straightening operation in this temperature range was conducive to controlling the generation of corner cracks. In orde
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MEKHDIEV, A. K., and R. K. MEKHTIEV. "Elastic-plastic problem for a perforated plate under transversal shear." Baku Mathematical Journal 2, no. 1 (2023): 22–34. http://dx.doi.org/10.32010/j.bmj.2023.02.

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The problem of solving the problem of the transverse shear of a plate along the edges of the holes and weakened by a two-periodic system of rectilinear through cracks with plastic end zones, collinear to the abscissa and ordinate axes of unequal length, is considered. General representations of solutions are constructed that describe a class of problems with a doubly periodic distribution of moments outside circular holes and straight-line cracks with end zones of plastic deformations. Satisfying the boundary conditions, the solution of the problem of the plate shear theory is reduced to two i
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Urbaha, M., I. Agafonovs, V. Turko, and J. Fescuks. "Three Stages of Composite Specimen Destruction in Static Failure." Latvian Journal of Physics and Technical Sciences 58, no. 6 (2021): 61–67. http://dx.doi.org/10.2478/lpts-2021-0046.

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Abstract The paper presents the results of standard specimen fracture made of anisotropic carbon fiber plastic with an epoxy matrix. Static stepwise loading of the specimen was carried out on an Instron 8801 testing machine to determine the characteristics of ductile fracture G1C in the first mode in accordance with ASTM D5528. During loading, the parameters of acoustic emission (AE) signals, such as AE impulse amplitudes and their energy were synchronously recorded. At the same time, the magnitude of the opening and the growth of the crack initiated by the artificial cut at the end of the spe
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Dudyk, M. V., and Yu V. Dikhtyarenko. "“Trident” Model of Plastic Zone at the End of a Mode I Crack Appearing on the Nonsmooth Interface of Materials." Materials Science 50, no. 4 (2015): 516–26. http://dx.doi.org/10.1007/s11003-015-9749-4.

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Abbassi, Fethi, Olivier Pantalé, Sébastien Mistou, Ali Zghal, and Roger Rakotomalala. "Effect of Ductile Damage Evolution in Sheet Metal Forming: Experimental and Numerical Investigations." Key Engineering Materials 446 (July 2010): 157–69. http://dx.doi.org/10.4028/www.scientific.net/kem.446.157.

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The numerical simulation based on the Finite Element Method (FEM) is widely used in academic institutes and in the industry. It is a useful tool to predict many phenomena present in the classical manufacturing forming processes such as necking, fracture, springback, buckling and wrinkling. But, the results of such numerical model depend strongly on the parameters of the constitutive behavior model. In the first part of this work, we focus on the traditional identification of the constitutive law using oriented tensile tests (0°, 45°, and 90° with respect to the rolling direction). A Digital Im
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Yang, Li Hong, Guang Ping Zou, and Jia Qu. "Yield Criterion and Crack Tip Plastic Zone of Nickel-Based Single Crystal." Key Engineering Materials 525-526 (November 2012): 341–44. http://dx.doi.org/10.4028/www.scientific.net/kem.525-526.341.

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A modified Hill yield criterion considering tension-shear stress coupling was given and material parameters of nickel-based single crystal in this criterion was determined by the Least Square Method. Crack tip plastic zones of nickel-based single crystal plate were analyzed by using this modified yield criterion and the plastic zones corresponding to mixed mode I, II crack, were derived. The crack tip plastic zones of nickel-based single crystal were compared to that of isotropic material. The influences of tension-shear stress coupling, compound ratio of mixed mode I, II crack and temperature
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Nishimura, Toshihiko. "Strip Yield Analysis of Plastic Zone Coalescence for Collinear Edge Crack and Internal Crack in a Semi-Infinite Sheet." Journal of Pressure Vessel Technology 122, no. 1 (1999): 86–89. http://dx.doi.org/10.1115/1.556144.

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The coalescence conditions of plastic zones are calculated for an edge crack and an internal crack in a semi-infinite sheet. The cracks and their plastic zones are treated as a fictitious crack, and integral equations are formulated on equilibrium of surface traction, no stress singularity at the crack tip, and zero crack face displacement at the coalesced point of plastic zones. The integral equations are iteratively solved, and critical values of remote stress, plastic zone sizes, and crack tip opening displacements are determined. Numerical results for an edge crack and an internal crack du
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Zhang, Jie, Shoushi Gao, Yifeng He, et al. "Study on the Upper Limit of Roof Failure in Soft Rock Roadway." Shock and Vibration 2023 (December 28, 2023): 1–20. http://dx.doi.org/10.1155/2023/3837106.

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This study addresses the issue of large deformation in soft rock roadways, using the 50213 tailgate of Guantun Coal Mine as a case study. Field investigations were conducted to assess the condition of roadway bolts, anchor cables, and the internal damage characteristics of the surrounding rock. The upper bound method of limit analysis in plastic mechanics was utilized to construct a failure model for the surrounding rock and derive the upper limit solution of roof failure by integrating the principle of virtual work and variational extremum theorem. Physical similarity simulations were employe
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Yang, Jing, and Kun Zhou. "On Elastic-Plastic Fracture Behavior of a Half-Space Under Prescribed Loading." International Journal of Applied Mechanics 09, no. 03 (2017): 1750036. http://dx.doi.org/10.1142/s1758825117500363.

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The plastic zones at crack tips play a significant role in fracture behaviors of materials. In this paper, a semi-analytic solution is proposed for the plastic zone size of cracks in an elastic-perfectly plastic half-space under prescribed loading. This solution also considers the subsurface stress distribution influenced by the plastic zones at crack tips. The cracks can be treated as a distribution of edge dislocations with unknown densities by using the distributed dislocation technique. In order to calculate the plastic zone sizes of crack tips, two stripes ahead of crack tips are introduc
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Dissertations / Theses on the topic "Crack with plastic end zones"

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Brew, Patrick Joseph. "Crack Initiation Analysis in Residual Stress Zones with Finite Element Methods." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/84537.

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This research explores the nearly untapped research area of the analysis of fracture mechanics in residual stress zones. This type of research has become more prevalent in the field in recent years due to the increase in prominence of residual stress producing processes. Such processes include additive manufacturing of metals and installation procedures that lead to loads outside the anticipated standard operating load envelope. Abaqus was used to generate models that iteratively advanced toward solving this problem using the compact tensile specimen geometry. The first model developed in
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Tarleton, Edmund. "Dislocation-dynamics modelling of crack-tip plastic zones and brittle-ductile transitions in BCC metals." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526123.

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Lados, Diana Aida. "Fatigue crack growth mechanisms in Al-Si-Mg alloys." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-0204104-125758.

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Thesis (Ph. D.)--Worcester Polytechnic Institute.<br>Keywords: Microstructure; Elastic-Plastic Fracture Mechanics; Crack closure; A356; J-integral; Conventionally cast and SSM Al-Si-Mg alloys; Residual stress; Heat treatment; Fatigue crack growth mechanisms; Threshold stress intensity factor; Plastic zone; Paris law; Fracture toughness; Roughness. Includes bibliographical references.
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Book chapters on the topic "Crack with plastic end zones"

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Shlyannikov, Valery, and Daria Fedotova. "Crack Growth and Plastic, Fracture Process and Damage Zones Behavior Under Mixed Mode Loading." In Structural Integrity. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47883-4_21.

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Bouchez, Jean-Luc, and Adolphe Nicolas. "Ductile deformation and microstructures." In Principles of Rock Deformation and Tectonics. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780192843876.003.0004.

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In contrast to the elastic deformation, which is reversible, usually neglected by field geologists but important for geophysicists working in seismology, ductile deformation is irreversible. This chapter is restricted to solid materials. Materials containing a melt fraction will be examined in Chapter 7. In the geological literature, ‘ductile’ is often used as a synonym for ‘plastic’. The latter is rather used, and will be used to specify deformation mechanisms that dominantly involve the action of dislocations. In contrast to brittle deformation, which by essence is discontinuous and highly l
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Conference papers on the topic "Crack with plastic end zones"

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Shipilov, Sergei A. "Comparison between Hydrogen-Enhanced Corrosion Fatigue Crack Growth Rates and Critical Distances Ahead of a Growing Crack." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00375.

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Abstract A comparison was made between hydrogen-induced corrosion fatigue crack growth (FCG) rates and critical distances ahead of the growing crack. This comparison was made by using results obtained from previous experiments on the corrosion FCG behavior of high-strength steels, titanium alloys, and a magnesium alloy. The critical distances included the distance to the location of maximum triaxial stress ahead of the crack, the sizes of cyclic and monotonic plastic zones, the depths of hydrogen penetration due to lattice diffusion and dislocation sweeping. Hydrogen-induced corrosion FCG rate
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Hänninen, Hannu, William Cullen, and Markku Kemppainen. "Effects of MnS Inclusion Dissolution on Environmentally Assisted Cracking in Low Alloy and Carbon Steels." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89565.

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Abstract In fatigue both monotonic and cyclic plastic zones are formed ahead of the crack tip, inside which the strain history can be studied on the basis of stable hysteresis loops and their development. A 533-B pressure vessel steel was prefatigued to represent the material structure anticipated in the crack-tip process zone and in the area of the maximum tensile stress ahead of the crack tip. With these materials slow strain rate tests were performed both in bulk PWR-environments and in the simulated crack tip environments (MnS-contaminated PWR-water). Environment-sensitive cracking occurre
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Turkalj, Tomás, Sebastián Cravero, Hugo Ernst, and Gustavo Kissner. "Effect of High Arm Displacement on DCB Specimen Testing." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05856.

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Abstract Usually Double Cantilever Beam (DCB) samples are tested following NACE Standard TM0177-2005 procedure. The standard establish arm displacement limits as function of steel grade. However, the increasing interest on material characterization in mild sour media imposes testing at higher arm displacements that can produce larger plasticization zones at the crack-tip of DCB specimens. It is widely recognized that the level of plasticity can significantly affect the material fracture behavior. Therefore, It is important to study the loading conditions that cause the loss of linear elastic r
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Brouwer, R. C., E. C. J. N. de Jong, L. M. de Mul, and G. van den Handel. "Modelling Hydrogen Induced Crack Growth: Validation by Comparison with Experiment." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95070.

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Abstract A finite difference hydrogen induced crack (HIC) growth model has been developed, enabling for the first time an accurate simulation of the growth of HIC cracks in the wall of pipelines and/or pressure vessels. In the model, parameters such as defect size, location, fracture toughness and hydrogen concentration, can be varied. The predictions of the HIC model are compared with experimental HIC crack growth curves, which were generated in a unique hydrogen permeation-ultrasonic scanning experiment. Both the observed time until initiation for HIC cracks and the crack growth rate show ex
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McIntyre, Dale R., and Raymundo P. Case. "Environmental Effects on Fitness-for Service Parameters for 1% Nickel Steel Pipe Welds with Preferential Weld Corrosion Damage." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05820.

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Abstract This study presents slow strain rate, notched slow strain rate and compact tension test data on the changes, due to environmental exposure, in mechanical properties and fracture toughness of 1% nickel steel welds in API 5L X-52 surface facilities piping. These strength and toughness parameters serve as input for fitness-for-service analyses of preferential weld corrosion (PWC) damage as either corrosion grooves or crack-like flaws. In 1% nickel steel welds, in CO2 environments, toughness loss of ca. 35% was observed even in the absence of H2S. Toughness loss of ca. 42% was observed ev
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Richey, Edward, David S. Morton, Robert A. Etien, George A. Young, and Ronald B. Bucinell. "SCC Initiation in Alloy 600 Heat Affected Zones Exposed to High Temperature Water." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08676.

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Abstract Studies have shown that grain boundary chromium carbides improve the stress corrosion cracking (SCC) resistance of nickel based alloys exposed to high temperature, high purity water. However, thermal cycles from welding can significantly alter the microstructure of the base material near the fusion line. In particular, the heat of welding can solutionize grain boundary carbides and produce locally high residual stresses and strains, reducing the SCC resistance of the Alloy 600 type material in the heat affected zone (HAZ). Testing has shown that the SCC growth rate in Alloy 600 heat a
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Kalyanam, S., L. Hill, G. M. Wilkowski, and Y. Hioe. "Modeling the Fracture Behavior of SEN(T) Specimens With Crack In Heat-Affected-Zone." In ASME 2021 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/pvp2021-63027.

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Abstract Single-Edge-Notch Tension, SEN(T) specimens have been used for fracture toughness determinations of base, weld, and heat-affected-zone (HAZ) materials. While the experimental results and computational finite element analysis (FEA) of SENT specimens with cracks in base and weld metals are relatively straight-forward, the analysis of SENT specimens with cracks in the HAZ poses several complexities that are highlighted through computational FEA in this work. SENT specimens have been found to provide good similitude for surface cracks in pipes, where a surface-cracked structure has lower
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Gourdin, C., F. Rossillon, P. Le Delliou, G. Perez, and A. Fissolo. "Investigations on Crack Propagation Under Cyclical Isothermal and Thermo-Mechanical Loadings for a Type 304-L Stainless Steel Used for Pressurized Water Reactor." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97510.

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The integrity of structures exhibiting flaws in Pressurized Water Reactor (PWR) has to be assessed to meet safety criteria. This paper deals with crack-propagation under cyclic thermo-mechanical loadings, as encountered in class I austenitic pipes of PWR’s. To have a conservative and reliable assessment of the crack propagation due to the in-service loading, various codes and standards use simplified method. For example, RSE-M introduces a plastic correction depending on the proportion of the mechanical loading. An improvement of the current method requires additional investigations. Moreover,
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CRUSE, T., and E. POLCH. "BIE analysis of crack tip plastic zones." In 26th Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-670.

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Gourdin, C., F. Rossillon, P. Le Delliou, G. Perez, and A. Fissolo. "Investigations on Crack Propagation Under Cyclical Isothermal and Thermo-Mechanical Loadings for a Type 304-L Stainless Steel Used for Pressurized Water Reactor." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45290.

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The integrity of structures exhibiting flaws in Pressurized Water Reactor (PWR) has to be assessed to meet safety criteria. This paper deals with crack-propagation under cyclic thermo-mechanical loadings, as encountered in class I austenitic pipes of PWR’s. To have a conservative and reliable assessment of the crack propagation due to the in-service loading, various codes and standards use simplified method. For example, RSE-M introduces a plastic correction depending on the proportion of the mechanical loading. An improvement of the current method requires additional investigations. Moreover,
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Reports on the topic "Crack with plastic end zones"

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Dinovitzer, Aaron. PR-214-114504-R02 Development of Sleeve End Fillet Weld Fitness for Service Assessment Tools. Pipeline Research Council International, Inc. (PRCI), 2016. http://dx.doi.org/10.55274/r0010890.

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Pipeline defects such as cracks, dents and corrosion often require permanent pressure retaining repairs. Full encirclement metallic repair sleeves with fillet-welded end connections to the pipe-line are often used for this purpose. In-service failures have occurred at pressure retaining sleeves as a result of defects associated with the sleeve welds, such as hydrogen-induced cracks, undercut at the fillet welds and inadequate weld size. At present, accurate quantitative fitness for service assessments for circumferential defects in sleeve fillet welds are difficult to carry out due to a lack o
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Kirk. L51737 Development of Modeling Procedures for Branch Welds. Pipeline Research Council International, Inc. (PRCI), 1995. http://dx.doi.org/10.55274/r0010122.

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One major difficulty in developing fitness-for-purpose based flaw acceptance criteria for pipeline branch connections is the calculation of the stress distributions in the vicinity of the welds. Even with the latest computer-aided modelling technologies, finite element modeling of branch connections using three-dimensional (3-D) solid elements is the only way to accurately determine the stress distributions local to the weld toes of branch connections. This report describes work to access the applicability of linear elastic fracture mechanics (LEFM) principles to a saddle-pad reinforced branch
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Shen, Gianetto, and Tyson. L52342 Development of Procedure for Low-Constraint Toughness Testing Using a Single-Specimen Technique. Pipeline Research Council International, Inc. (PRCI), 2011. http://dx.doi.org/10.55274/r0010687.

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Pipelines from remote frontier regions are increasingly required to have adequate resistance to large deformations such as that caused by ground movement. In response to this, �strain-based design"� has been developed to enable assessment of imperfections at applied strains beyond yield. In addition, it is proposed to take advantage of the increased apparent toughness of pipe under low constraint, such as girth weld imperfections under axial tension, compared with the high-constraint toughness measured in conventional tests such as ASTM E1290 [1]. Application of low-constraint testing has been
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