An Analytical Model which Combines Roughness and Plasticity Induced Fatigue Crack Closure PDF Download

Author: Nong Chen
Publisher:
ISBN:
Category :
Languages : en
Pages : 242

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Author: N. Chen
Publisher:
ISBN:
Category : Crack closure
Languages : en
Pages : 17

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Book Description
A 2-D analytical model of the combined effects of plasticity-induced crack closure (PICC) and roughness-induced crack closure (RICC) has been developed. A zigzag crack growth path was employed to simulate surface roughness. The two opposing fatigue crack surfaces were translated by the mixed-mode displacement occurring near the deflected crack tip. This translation caused a mechanical interference of the opposing crack surfaces as the crack closed, that is, caused RICC. The gradual transition from RICC- to PICC-dominated crack closure was handled naturally by this model. The influence of the geometrical features of the surface roughness, R-ratio, and the cyclic load range on RICC were examined using the PICC-RICC model. The effect of microstructure on the RICC was examined. Despite the simple, 2-D nature of the model, it predicted the trends of experimental data on near-threshold crack growth behavior reported in the literature.

Author: R. Craig McClung
Publisher: ASTM International
ISBN: 0803126115
Category : Fracture mechanics
Languages : en
Pages : 487

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Book Description

Author: N. Chen
Publisher:
ISBN:
Category : Crack closure
Languages : en
Pages : 16

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Book Description
A 2-D analytical model which is termed the PICC-RICC model combines the effects of plasticity-induced crack closure (PICC) and roughness-induced crack closure (RICC). The PICC-RICC model handles naturally the gradual transition from RICC to PICC dominated crack growth. In this study, the PICC-RICC model is combined with a crack nucleation model to predict the total fatigue life of a notched component. This modified PICC-RICC model will be used to examine several controversial aspects of an earlier, computationally simpler total-life model known as the IP model.

Author: Tina Louise Panontin
Publisher: ASTM International
ISBN: 0803124864
Category : Fatigue
Languages : en
Pages : 922

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Author: Walter G. Reuter
Publisher: ASTM International
ISBN: 0803128991
Category :
Languages : en
Pages : 778

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Covering the whole of Asia and the Pacific region, this text provides both an analytic overview and specific data for each of the 60 countries. Introductory chapters cover regional issues, including: a regional review with the year's trends, developments and key events' analysis of the threat of terrorism in the region; the effects of deflation on the economy; the water crisis and its impact on the poor; and the successes and failures of micro-credit in the region.

Author: Justin Mandel Crapps
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages :

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A weight function based modified strip-yield model is adapted to include the mode I effects of roughness induced crack closure. The weight function methodology is verified for arbitrary mixed mode loading conditions under load levels experienced in fatigue crack growth. A rough crack geometry is simulated as a sine wave fitted to a sawtooth defined by an asperity angle and period. Additional mode I crack closure due to mode II sliding of crack faces is calculated and incorporated into the strip-yield model by lengthening and shortening the crack face elements. Simulations of fatigue crack growth using the newly developed model are examined via a design and analysis of computer experiments. The effects of model parameters are identified. Combined roughness and plasticity induced crack closure for long cracks is studied.

Author: John A. Newman
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 34

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Author: Amar Patnaik, Albano Cavaleiro, Malay Kumar Banerjee, Ernst Kozeschnik, Vikas Kukshal
Publisher: Bentham Science Publishers
ISBN: 9815136720
Category : Technology & Engineering
Languages : en
Pages : 318

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Book Description
Explore the world of advanced materials and their manufacturing processes through this authoritative and enlightening reference. Discover how these innovations are shaping the future of high-tech industries and making a profound impact on our world. Manufacturing and Processing of Advanced Materials compiles current research and updates on development efforts in advanced materials, manufacturing, and their engineering applications. The book presents 22 peer-reviewed chapters that cover new materials and manufacturing processes. Key Topics Materials for the Future: Properties, classifications, and harmful effects of advanced engineering Innovative Manufacturing Techniques: Nanotechnology in material processing and manufacturing innovation. Advanced Welding and Joining: laser welding and friction stir welding in manufacturing composite materials. Sustainable Practices: Eco-Friendly machining, water vapor cutting fluid, for high-speed milling, natural fiber reinforcement with materials like bamboo leaves. Advanced Materials Characterization and Modeling: Carbon nanotube (CNT)-reinforced nanocomposites and tribology for durable and reliable materials ensuring reliability. Materials for Energy and Electronics: Energy Storage Innovations and smart materials for electronic devices Novel Drilling and Machining Processes: Microwave drilling, electric discharge machining and die-sinking electric discharge machining for metal matrix composites. Innovations in Nanoparticle Production: Spark discharge method (SDM) for advanced nanoparticle production. The book caters to a diverse audience, offering an invaluable resource for researchers, engineers, graduate students, and professionals in materials science, engineering, chemistry, and physics. By enhancing their knowledge and expertise, readers are poised to become key contributors to various industries and technological advancements.

Author: Lin Ye
Publisher: Woodhead Publishing
ISBN: 0081002254
Category : Technology & Engineering
Languages : en
Pages : 615

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Book Description
The proceedings of the International Congress (c) include about 120 papers selected out of 160 papers submitted for presentations at APCF/SIF-2014, to be held in Sydney, Australia, December 9-12, 2014, and uniting the Asian-Pacific Conference on Fracture and Strength 2014 (APCFS-2014) with the International Conference on Structural Integrity and Failure (SIF-2014). The congress will be hosted by The University of Sydney and co-organized by Australia Fracture Group (AFG), the Chinese Mechanical Engineering Society, Materials Institution (CMES-MI), the Korean Society of Mechanical Engineers, Materials and Fracture Division (KSME-MFD) and The Japanese Society of Mechanical Engineers, Materials and Mechanics Division (JSME-MMD). The congress follows the series of the previous very successful APCF and SIF international forums, in particular, APCFS 2012, Busan and the 8th SIF, Melbourne, 2013. - Characterisations of complex mechanisms of damage accumulation and failure - Application of new multi-scale modelling approaches in problems associated with structural integrity - Development of more accurate technologies for structural damage assessment