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Prediction of slant ductile fracture using damage plasticity theory
International Journal of Pressure Vessels and Piping, 2009Slant ductile rupture is one of the common failure modes in the pressure vessel and piping industry. Such failure in tubing and casing can be the result of excessive internal pressure and/or axial loading. The underlying physics of ductile rupture is essential in predicting the fracture modes and the crack propagation path for ductile metals. The slant
Hongcheng Huang, Liang Xue
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Damaged Plasticity Theory and its Application in Studying on Fractured Rock
Applied Mechanics and Materials, 2011Fractured rock mass is one of the most important engineering materials for civil engineering in rock mass and rock layer, and has special failure model and constitutive relationship different from other man-made materials. A new numerical model is introduced and applied in studying the deformation, strength, and the failure mode of fractured rock mass,
Zhi Qiang Zhang, Ning Li, Fang Fang Chen
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Ductile fracture initiation and propagation modeling using damage plasticity theory
Engineering Fracture Mechanics, 2008Abstract Ductile fracture is often considered as the consequences of the accumulation of plastic damage. This paper is concerned with the application of a recently developed damage plasticity theory incorporates the pressure sensitivity and the Lode angle dependence into a nonlinear damage rule and the material deterioration.
Liang Xue, Tomasz Wierzbicki
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Computer Methods in Applied Mechanics and Engineering, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hung Thanh Tran +3 more
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hung Thanh Tran +3 more
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The Stress Calculation of Sidewall Rock in Hydraulic Fracturing Basing on Damage Theory
Advanced Materials Research, 2013The sidewall rock area was divided into destruction zone, damage zone and elastic zone, considering that the fracturing fluid can cause sidewall rock damage and change the stress status of sidewall rock. The stress distribution calculation models for every zone were established basing on elasticity and damage mechanics.
Chi Ai, Yu Liu, Yu Wei Li, Zhao Qi Wang
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The Study of Permeability Change of Fractal Under Fracturing Basing on Damage Theory
2010 WASE International Conference on Information Engineering, 2010In order to research the evolution of permeability and damage of fractal rock under hydraulic fracturing, a new damage variable that describing relative reduction of pore amounts as radius is bigger than r any fracturing stage is defined. Assuming the process of evolution of micro-fracturing is in accord with standard model of Logistic bifurcation ...
Zhao Wanchun, Ai Chi
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Railway Safety Inspection Intervals Based on Damage Tolerance and Fracture Control Theory
Structural Health Monitoring 2019, 2019The concept of damage tolerance (damage tolerance methods) has been widely used in the inspection intervals of aircraft, however, for existing railway vehicle structural parts, the establishment of inspect intervals is determined heretofore empirically. Safety inspections are designed (performed) to detect cracks potentially existing at known locations.
JIANGFENG DING +5 more
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Statistical Theory of Fracture of Structural Materials at Damage Accumulation
1991This work develops a version of statistical theory of strengt hand fracture of structural materials (metals, polymers, composites,ceramics, etc.) in the conditions of general state of stress at complex external influences (loads, temperature, electromagnetic fields, etc.) based on the conception of materials damage process and the statistical theory of
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DUCTILE FRACTURE CHARACTERIZATION OF ALUMINUM ALLOY 2024-T351 USING DAMAGE PLASTICITY THEORY
International Journal of Applied Mechanics, 2009This paper presents the calibration procedure for aluminum alloy 2024-T351 using a recently developed damage plasticity theory. The damage plasticity theory consists of a full three dimensional damage evolution law where the pressure sensitivity and the Lode angle dependence are included in a fracture envelope and the equivalent plastic strain is used ...
LIANG XUE, TOMASZ WIERZBICKI
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2011 International Conference on Electric Technology and Civil Engineering (ICETCE), 2011
Under the action of remote stress and crack hydraulic pressure, the damage and rupture of jointed rock mass accumulate and develop simultaneously during the process of its crack occurrence and growth. The damage will be accumulated owing to the rupture. The damage is closely related to the rupture. Taking into account comprehensive the stress intensity
null Xinping Li +2 more
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Under the action of remote stress and crack hydraulic pressure, the damage and rupture of jointed rock mass accumulate and develop simultaneously during the process of its crack occurrence and growth. The damage will be accumulated owing to the rupture. The damage is closely related to the rupture. Taking into account comprehensive the stress intensity
null Xinping Li +2 more
openaire +1 more source