A comparison of the influence of nonlinear and linear creep on the behaviour of FRP-bonded metallic beams at warm temperatures

2021 ◽  
pp. 115117
Author(s):  
S. Wang ◽  
T. Stratford ◽  
T.P.S. Reynolds
Keyword(s):  
Linear Creep

Non-linear creep damage model of sandstone under freeze-thaw cycle

2021 ◽  
Vol 28 (3) ◽  
pp. 954-967
Author(s):  
Jie-lin Li ◽  
Long-yin Zhu ◽  
Ke-ping Zhou ◽  
Hui Chen ◽  
Le Gao ◽  
...  
Keyword(s):  
Damage Model ◽  
Creep Damage ◽  
Freeze Thaw ◽  
Thaw Cycle ◽  
Linear Creep ◽  
Non Linear ◽  
Freeze Thaw Cycle ◽  
Creep Damage Model

Non-linear creep and recovery behaviour of polypropylene fibres

1965 ◽  
Vol 13 (6) ◽  
pp. 397-411 ◽  
Author(s):  
D.W. Hadley ◽  
I.M. Ward
Keyword(s):  
Polypropylene Fibres ◽  
Creep And Recovery ◽  
Linear Creep ◽  
Non Linear

scholarly journals Parametric investigations for extrapolation of a log-linear creep model

1988 ◽  
Vol 10 (2) ◽  
pp. 99-106
Author(s):  
S.H. Foust ◽  
K.P. Chong
Keyword(s):  
Creep Model ◽  
Linear Creep ◽  
Log Linear

Non-linear Creep Analysis of Ceramic Specimen Using Finite Element Method

2016 ◽  
Vol 97 (3) ◽  
pp. 417-430
Author(s):  
Jaswinder Singh Saini ◽  
Saurabh Khera
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Ceramic Specimen ◽  
Creep Analysis ◽  
Linear Creep ◽  
Non Linear ◽  
Element Method

scholarly journals Study on non-linear creep prediction equation of concrete.

1992 ◽  
pp. 179-188
Author(s):  
Kenji SAKATA ◽  
Toshiki AYANO
Keyword(s):  
Prediction Equation ◽  
Linear Creep ◽  
Non Linear

Non-linear creep-fatigue interaction based on a viscoplastic law coupled with damage

1998 ◽  
Vol 15 (3-4) ◽  
pp. 271-275
Author(s):  
S. Nicolet ◽  
J-Ph. Sermage
Keyword(s):  
Linear Creep ◽  
Non Linear ◽  
Creep Fatigue

scholarly journals DETERMINATION OF CREEP PARAMETERS IN LAYERS OF BUILDING COMPOSITES/SLUOKSNIUOTŲJŲ STATYBINIŲ KOMPOZITŲ VALKŠNUMO PARAMETRŲ NUSTATYMAS

1998 ◽  
Vol 4 (2) ◽  
pp. 101-108 ◽  
Author(s):  
Gediminas Marčiukaitis
Keyword(s):  
Force Action ◽  
Building Product ◽  
Creep Coefficient ◽  
Deformation Properties ◽  
Linear Creep ◽  
Modulus Of Deformation ◽  
Composite Product ◽  
Properties Of Materials ◽  
Creep Deformations

Various composite building products consisting of layers of different physical-mechanical properties being tied rigidly together are manufactured and used in construction. In many cases such products curve, become flaky, crack and their thermo-insulating capability suffers. It occurs because deformation properties are not adjusted, different layers of such products deform differently under the load. And the deformation effects the behaviour of the whole structure. A correct adjustment of deformations can be achieved with allowance for creep of different layers and of the whole composite. Determination of creep parameters—creep coefficient and specific creep—depends on the orientation of layers in respect of the direction of force action. When layers are situated transverselly in respect of the direction of action of forces (stresses), creep parameters of composite depend on creep parameters of materials of separate layers and on relative volumes of these layers. Creep deformations of a composite can be described by equations describing creep of individual layers. Appropriate equations and formulas ((17)-(25)) are presented for determining such deformations. When layers are parallel to the direction of stresses, redistribution of these stresses between layers takes place. Compression stresses increase in a layer with higher modulus of deformation and decrease in that with lower modules. Proposed equations (37)-(42) enable to determine redistribution of stresses between layers, the main creep parameters of composite, their modulus of deformations and creep deformations themselves when strength of a composite product is reached, E(t0)=E(t)=const and stresses produce linear creep. Such loading of a composite product is the most common in practice. Presented formulas ((46), (52)) and diagrams show that it is possible to design a composite building product or material with creep parameters given in advance by means of appropriate distribution of product layers, selecting ratios between layers and properties of materials.

scholarly journals Nonlinear creep in a steel-reinforced concrete beam

2020 ◽  
Vol 17 (5) ◽  
pp. 108-116
Author(s):  
S. O. Chepilko ◽  
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Reinforced Concrete Beams ◽  
Nonlinear Creep ◽  
Short Term ◽  
Nonlinear Integral Equations ◽  
Steel Reinforced Concrete ◽  
Linear Creep ◽  
Resolving System

Problems of taking into account nonlinear creep in steel- reinforced concrete beams are considered basing on the integral equation of viscous-elastic-plasticity of concrete. There has been obtained the resolving system of nonlinear integral equations, a linearization of this system has been carried out, its asymptotic solutions have been written out for the theory of elastic heredity case. The analysis of taking into account nonlinear creep has been performed compared with the linear creep equations and an instantaneous (short-term) loading allowing for concrete’s nonlinear diagram.

scholarly journals Effects of Structure Boundary Conditions and Snow-Pack Properties on Snow-Creep Pressures

1989 ◽  
Vol 13 ◽  
pp. 175-179
Author(s):  
D.M. McClung ◽  
J.O. Larsen
Keyword(s):  
Theoretical Analysis ◽  
Field Data ◽  
Nonlinear Deformation ◽  
Design Consideration ◽  
Snow Pack ◽  
Deformation Law ◽  
Linear Creep ◽  
The Mean ◽  
Structure Boundary ◽  
Analytical Expressions

Structures placed in deep snow covers are subject to forces caused by interruption of the down-slope snow-pack deformation components. The resulting creep pressures are often the primary design consideration. In this paper, accurate field data (pressures) and theoretical analysis of the problem using a linear creep law to define snow deformation are presented. Results include analytical expressions for the pressures, and it is demonstrated that the resulting linear theory underestimates the mean pressures by about 20%. Higher accuracy will require that a nonlinear deformation law be formulated.

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