Results 21 to 30 of about 486,844 (378)
Review of time-dependent fracture model of concrete
矿业科学学报, 2021 The integrity of concrete structures under strong earthquakes and the stability of concrete structures with cracks are concerns of national security strategies.These two issues are closely related to the time-dependent fracture behavior of concrete.The ...
Chen Yulong, Cao Peng
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Mechanisms of femoral fracture [PDF]
Journal of Biomechanics, 1980 Abstract Mechanisms of femoral fracture of the condyles and shaft were experimentally investigated through controlled knee impact of denuded femurs in six human cadavers. High-speed movies recorded knee joint compression, femoral displacements and deformation, and fracture initiation.
Viano, David C., Stalnaker, Richard L.
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AIMS Materials Science, 2019 The fatigue life of an externally cracked modern tank gun barrel is controlled by the prevailing combined stress intensity factor (SIF) KIN, which consists of two components:KIP-the SIF caused by internal pressure; KIA-the positive SIF due to the tensile
Mordechai Perl, Tomer Saley
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Modeling the process of equilibrium crack growth in a composite specimen from the standpoints of the postcritical deformation mechanics [PDF]
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2022 Ensuring the strength and safety of structures requires studying the issues of crack initiation and equilibrium growth. An analogy between the approaches of phenomenological fracture mechanics, which is based on the complete deformation diagrams usage ...
Valeriy E. Wildemann, Artur I. Mugatarov
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Applied Sciences, 2021 In this paper, the fracture of notched polymeric specimens under compressive stresses was investigated both experimentally and theoretically. In the experimental section, to determine the load-carrying capacity (LCC) of U-notched specimens made of ...
Ali Reza Torabi +3 more
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Asymptotic methods of nonlinear fracture mechanics: results, contemporary state and perspectives
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013 In the paper the brief review of the important results of nonlinear fracture mechanics recently obtained by the asymptotic methods and perturbation techniques is given.
Larisa V Stepanova, Ekaterina M Adylina
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Energy-Efficient Fracturing Based on Stress-Coupled Perforation [PDF]
arXiv, 2023 Hydraulic fracturing is one of the key technologies for reservoir stimulation in low-permeability/unconventional oil and gas fields. In response to the high energy consumption and greenhouse gas emissions caused by extreme flow-limiting perforation in hydraulic fracturing, stress-coupled perforation technology has been proposed to promote low-energy ...
arxiv
Frontiers in Bioengineering and Biotechnology, 2023 Despite recent experimental and clinical progress in the treatment of tibial and fibular fractures, in clinical practice rates of delayed bone healing and non-union remain high.
Marcel Orth +9 more
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Investigations into the opening of fractures during hydraulic testing using a hybrid-dimensional flow formulation [PDF]
arXiv, 2021 We applied a hybrid-dimensional flow model to pressure transients recorded during pumping experiments conducted at the Reiche Zeche underground research laboratory to study the normal opening behavior of fractures due to fluid injection. Two distinct types of pressure responses to flow-rate steps were identified and numerically modelled using a radial ...
arxiv
Viscoplastic constitutive models for zero-thickness interface elements, formulation and applications [PDF]
, 2019 An energy-based work-softening visco-plastic model for zero-thickness interface elements has been developed as an extension of an existing elastic-perfectly-viscoplastic formulation.
Carol, Ignacio, Jaqués Adell, Irene
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