Results 51 to 60 of about 37,286 (243)
Stress relaxation and elastic follow-up using a stress range-dependent constitutive model [PDF]
, 2012 Despite the availability of detailed nonlinear finite element analysis, some aspects of high temperature design can still be best addressed through more simplified methods.
Boyle, James
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Implementation of a new time-dependent shotcrete constitutive model for 3D tunnel modeling
Results in EngineeringShotcrete behaviors, including modulus and compressive strength, are highly time-dependent. Moreover, freshly applied shotcrete is subjected to loading immediately after application, making its realistic representation both essential and challenging in ...
Sinodos S. Sefene +2 more
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Modelling of undrained shearing of soft natural clays [PDF]
E3S Web of Conferences, 2019 stress-strain response of soft natural clays is characterised by anisotropy, destructuration and rate-dependency. An accurate constitutive description of these materials should take into consideration all of the characteristics above.
Petalas Alexandros L. +2 more
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The Interpretation of Experimental Observation Data for the Development of Mechanisms based Creep Damage Constitutive Equations for High Chromium Steel [PDF]
, 2015 It is very important to design a safe factor or estimating the remain lifetime for electric power plant components of steam pipes which mostly manufacture by high chromium steels and work at high temperature and low stress level.
Lu, Zhongyu, Xu, Qiang, Yang, Xin
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Calibration of CDM-Based Creep Constitutive Model Using Accelerated Creep Test (ACT) Data
Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, 2020 Abstract In conventional creep testing (CCT) a specimen is subject to constant load and temperature for a long-duration until creep rupture occurs. Conventional testing can be costly when considering the number of experiments needed to characterize the creep response of a material over a range of stress and temperature.
Md Abir Hossain +3 more
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A constitutive model considering creep damage of wood
Mechanics of Time-Dependent MaterialsAbstractThe serviceability of wooden structures involves multiphysical phenomena, notably the interactions among creep, plasticity, and damage. The influence of creep on the initialization of the damage and on its growth and spread can be adjusted by an additional alpha parameter in order to take into account the coupled effect between creep and damage
Trcala, Miroslav +3 more
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BuildingsIn the loess-filling project, the original structural loess under the filling will produce creep deformation under the isometric consolidation stress state, affecting the upper building’s safe construction and later operation.
Yuan Yuan +3 more
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Неизотермическая ползучесть и повреждаемость элементов паровых турбин [PDF]
, 2006 The conventional Kachanov-Rabotnov-Hayhurst type continuum damage mechanics creep model is extended to the case of variable temperature and strain hardening consideration. Both the creep and the damage rates are assumed temperature dependent. A technique
Гораш, Е. Н. +2 more
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A generalization of the Lomnitz logarithmic creep law via Hadamard fractional calculus
, 2017 We present a new approach based on linear integro-differential operators with logarithmic kernel related to the Hadamard fractional calculus in order to generalize, by a parameter $\nu \in (0,1]$, the logarithmic creep law known in rheology as Lomnitz ...
Garra, Roberto +2 more
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Micromechanics of creep fracture: simulation of intergranular crack growth [PDF]
, 1998 A computational model is presented to analyze intergranular creep crack growth in a polycrystalline aggregate in a discrete manner and based directly on the underlying physical micromechanisms.
Ashby +14 more
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