The rate of creep is highly dependent on both stress and temperature. With most of the engineering alloys used in construction at room temperature or lower, creep strain is so small at working loads that it can safely be ignored. It does not become significant until the stress intensity is a...
Such materials are proposed to be called composite materials (CM) with a honeycomb structure. Miniature samples in the form of small cylinders 5 mm in diameter and 5–8 mm in height were tested for compression at 1000–1300°C in air and for creep upon compression at 1050, 1110 and 1210...
Points of interest are the 'anomalously' high stress dependence of the creep rates, the role of grain boundaries, and the loss of strength at high temperatures. Theoretical attempts to explain the creep behaviour in terms of interactions between dislocations and dispersoid particles are extensively ...
In this paper, we present a constitutive model for creep deformation in rock materials. Starting from an elastoplastic model for the description of short term behavior, the time-dependent deformation is described in terms of evolution of microstructure, leading to progressive degradation of elastic mod...
(B) Creep strain versus time: example of polypropylene at 23°C under 10 MPa in tensile loading. (C) Creep strain versus time: example of polypropylene at 23°C under 10 and 15 MPa in tensile loading. (D) Creep strength versus time: example of polyethylene at 20, 50, and 80°C. ...
Experimental/ compressive strengthcreepductile-brittle transitionicestress-strain relationsyield strength/ constant stress rateconstant strain rate... NK Sinha - 《Journal of Materials Science》 被引量: 103发表: 1982年 Computational Modelling of Fracture in Polycrystalline Materials creep cavitation, to exam...
SJ Brett,KC Mitchell - 《Materials Research Innovations》 被引量: 2发表: 2013年 Mechanical properties of modified 9 Cr--1 Mo steel Creep properties of modified 9 Cr-1 Mo steel, an alloy significantly improved in elevated-temperature strength over 2 1/4 Cr-1 Mo and other similar alloys,....
An improvement in creep strength of thermo-mechanical treated modified 9Cr-1Mo steel weld jointModified 9Cr-1Mo steelthermo-mechanical treatmentweldingcreeptype IV crackingCreep rupture behavior of 9Cr-1.8W-0.5Mo-VNb (ASME grade 92) ferritic steel weld joint fabricated by activated TIG (A-TIG)...
Strength of thin-walled structural elements with cracks under the conditions of creep 来自 掌桥科研 喜欢 0 阅读量: 20 作者:OE Andreikiv,NB Sas 摘要: By using a computational model of growth of high-temperature creep cracks in metallic materials formulated by the authors somewhat earlier [ Fiz....
as a function of the magnitude of total strain at the present time even if the material has been subjected to cyclic stressing prior to the creep. Con... F Yoshida,J Kondo,Y Kikuchi - 《Jsme International Journal Ser Solid Mechanics Strength of Materials》 被引量: 15发表: 1988年 加载更多...