Numerical modelling in non linear fracture mechanics by Viggo Tvergaard

“…In the present review this procedure is illustrated for micromechanically based material models, such as a ductile failure model that accounts for the nucleation and growth of voids to coalescence, and a model for intergranular creep failure with diffusive growth of grain boundary cavities leading to micro-crack formation. …”
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Computer-Integrated Surface Image Processing of Hydrogen-Saturated Steel Wear Products by Alexander I. Balitskii, Valerii O. Kolesnikov, Valentina O. Balitska, Ljubomyr M. Ivaskevych, Jakub M. Dowejko, Bartosz J. Pilecki, Maria R. Havrilyuk

“…During long-term operation, in the surface and subsurface layers of the materials of parts in the tribo-joint, changes in the micromechanisms of fracture occur, which change the morphology of WPs. …”
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Numerical modelling in non linear fracture mechanics by Viggo Tvergaard

“…In the present review this procedure is illustrated for micromechanically based materialmodels, such as a ductile failure model that accounts for the nucleation and growth of voids to coalescence, and a model for intergranular creep failure with diffusive growth of grain boundary cavities leading to micro-crack formation. …”
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3D printable one-part alkali-activated mortar derived from brick masonry wastes by Anil Kul, Oznur Kocaer, Alper Aldemir, Gurkan Yildirim, Sandra S. Lucas

“…Through this optimization, reductions in pore content and distribution, validated by MicroCT, indicated that the disadvantage of the weak interlayer bond zone in stress transfer could be diminished. Micromechanical analysis showed that the gel formation responsible for the strength was the calcium-based gel structures. …”
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Advances in regulating the electron spin effect toward electrocatalysis applications by Liu Lin, Peiyuan Su, Yiting Han, Yunming Xu, Qiao Ni, Xinyue Zhang, Peixun Xiong, Zemin Sun, Genban Sun, Xuebo Chen

“…This review contributes to a deeper understanding of the micromechanisms in electrocatalytic reactions.…”
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Advances in cardiac sounds monitoring enabled by triboelectric sensors by Xindan Hui, Hengyu Guo

“…More importantly, the fast saturated constitutive characteristic of the contact-separation mode (C-S) TENG demonstrates ultrahigh sensitivity in the detection of micromechanical quantities than traditional piezoelectric sensing mechanism. …”
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Nanoindentation analysis of transcrystalline layers in model carbon fiber-reinforced PEEK composite by Sophie Vanpée, Bernard Nysten, Jérémy Chevalier, Thomas Pardoen

“…Nanoindentation (NI) and atomic force microscopy (AFM) nanoindentation, coupled with polarized light microscopy (PLM), were used to determine the nano-/micromechanical behavior of the amorphous regions and individual crystalline structures, both spherulites and transcrystalline (TC) layers, in PEEK samples containing few carbon fibers. …”
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Stress–strain behaviour of wood in compression: Experimental and analytical investigations by Hajir Al-musawi, Philipp Matz, Matthias Jakob, Peter Halbauer, Thomas Krenke, Ulrich Müller

“…Unlike models for cellular material used for wood in literature, the suggested relationships proved to be efficient in representing the complete stress–strain curves of wood by considering the micromechanical effects influencing the transverse behaviour of moderate- and high-density wood species such as beech and birch. …”
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Investigation on the characterization and modelling of Fracture Process Zone behavior in Concrete Beams subjected to Three-Point Loading Tests by H. S. Vishwanatha, S. Muralidhara, B. K. Raghu Prasad

“…Traditional experimental methods and other techniques often face challenges in fully capturing the micromechanical mechanisms occurring in the fracture process. …”
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Experimental Investigation on the Effect of Rubber Powder on Mechanical Properties of PVA Fiber Concrete by Linling Ma, Bin Wang, Lei Zeng, Yunfeng Xiao, Heng Zhang, Zhen Li

“…To verify the damping improvement by replacing partial sand with rubber powder in the concrete process, this study investigated the effects of the rubber powder (5%, 10%, 15%, and 20%) on the mechanical properties and micromechanism of polyvinyl alcohol (PVA) fiber-reinforced concrete. …”
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Stability Analysis of Jointed Rock Cutting Slope Based on Discrete Element Method by Wei Zhu, Liang Gao, Yingai Zhao, Chao Yang, Wei Sun, Pengqiang Yu

“…The evolution of microfracture, contact force chain, and particle displacement are analyzed to explore the micromechanism of slope instability. Finally, the triple reinforcement scheme of anchor cable frame and grass planting is proposed. …”
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Numerical Simulation of Particle Breakage of Granular Assemblies in Discrete Element Analyses by Tao Zhang, Chi Zhang

“…The results of breakable and unbreakable agglomerates show that particle breakage has a significant influence on the macro- and micromechanical behaviors of the assembly. Higher confining pressure and larger axial strain result in the variation of particle grading and agglomerate numbers. …”
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Investigation on the characterization and modelling of Fracture Process Zone behavior in Concrete Beams subjected to Three-Point Loading Tests by H. S. Vishwanatha, S. Muralidhara, B. K. Raghu Prasad

“…Traditional experimental methods and other techniques often face challenges in fully capturing the micromechanical mechanisms occurring in the fracture process. …”
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Optical properties of nitride-rich SiNx and its use in CMOS-compatible near-UV Bragg filter fabrication by Reinoud F. Wolffenbuttel, Declan Winship, Yutao Qin, Yogesh Gianchandani, David Bilby, Jaco H. Visser

“…Although silicon-rich SiNx is widely accepted as a CMOS-compatible dielectric and micromechanical material, its optical absorption limits application to the visible to near-IR spectral range. …”
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Coupled identification of the hardening behavior laws and Gurson�Tvergaard�Needleman damage parameters - Validation on tear test of 12NiCr6 CT specimen by Mohamed Hadj Miloud, Ibrahim Zidane, Mohammed Mendas

“…This work is devoted to the application of the micromechanical Gurson-Tvergaard-Needleman (GTN) model to study the ductile tearing of 12NiCr6 steel. …”
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Hexagrid-Voronoi transition in structural patterns for tall buildings by Elena Mele, Massimiliano Fraldi, Gian Maria Montuori, Gianpaolo Perrella, Vincenzo Della Vista

“…For this aim, the concept of Representative Volume Element (RVE) and a classical homogenization-based micromechanical approach are employed for identifying the pattern units and deriving the relevant generalized stress-strain relationships. …”
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Hexagrid-Voronoi transition in structural patterns for tall buildings by elena mele, massimiliano fraldi, Gian Maria Montuori, gianpaolo perrella, vincenzo della vista

“…For this aim, the concept of Representative Volume Element (RVE) and a classical homogenization-based micromechanical approach are employed for identifying the pattern units and deriving the relevant generalized stress-strain relationships. …”
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Experimental Study on the Evolution Law of Mesofissure in Full Tailing Cemented Backfill by Yufan Feng, Guanghua Sun, Xuejian Liang, Chenyang Liu, Yue Wang

“…To understand the mechanical properties of the backfill, to reveal the evolvement of micromechanical fissure of backfill, a uniaxial compression experiment was carried out for the full tailing cemented backfill. …”
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Microstructural damage evaluation of ferritic-ausferritic spheroidal graphite cast iron by Diego Omar Fernandino, Vittorio Di Cocco, Nicolas Tenaglia, Costanzo Bellini, Francesco Iacoviello, Roberto Enrique Boeri

“…The goal of this work is to improve the understanding of the relation between the microstructural characteristics of Intercritical Austempered Ductile Cast Iron (IADI) and the damage micromechanisms observed during its tensile loading. The experimental methodology involves heat treatments to obtain IADI and the assessment of the damage mechanisms (sequence and occurrence) during step by step tensile testing. …”
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Coupled identification of the hardening behavior laws and Gurson–Tvergaard–Needleman damage parameters - Validation on tear test of 12NiCr6 CT specimen by Mohamed Hadj Miloud, Ibrahim Zidane, Mohammed Mendas

“…This work is devoted to the application of the micromechanical Gurson-Tvergaard-Needleman (GTN) model to study the ductile tearing of 12NiCr6 steel. …”
Get full text