Finite Element Thermoelastoplastic Analysis

Cyr, Norman A.; Teter, R.D.; Stocks, Brian B.

doi:10.1061/jsdeag.0003282

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The integration process corresponds to the Euler forward scheme or the explicit scheme. However, the problem with assessing the integrands at the beginning of the time step (point A on figure 1) or at the onset of yielding (point B) is that, as pointed out by Cyr & Teter (1972) and Allen & Haisler (1981), the solution does not converge to the desired point C. Instead it converges to point C as shown by the dashed line. It was also suggested by de Borst (1984) that the stress increment be divided into small subincrements and each subincrement evaluated according to equations (8) with the integrands evaluated at the beginning of the subincrement.…”

Section: De{dg/d<r}{df/d<r}tdementioning

confidence: 99%

“…In the literature, there exist some publications relating to thermoelastoplastic problems (Cyr & Teter 1972;Chang 1973;Sharifi & Yates 1974;Kulak et al 1978;Haisler & Sanders 1979 ;Syder & Bathe 1981;Allen & Haisler 1981;de Borst 1984;van Foeken 1984van Foeken , 1985Kleiber 1991). However, most of them were formulated for metal-like materials obeying the Von Mises yield criterion, except van Foeken (1984van Foeken ( , 1985 who made use of the Drucker-Prager yield criterion for the analysis of concrete structures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermoplasticity model for concrete under transient temperature and biaxial stress

Khennane

Baker

1992

Proc. R. Soc. Lond. A

View full text Add to dashboard Cite

In the past, the theory of thermoplasticity has been confined to metal type materials exhibiting an elastic-perfectly-plastic behaviour. This paper describes the application of this theory to modelling the response of a nonlinear hardening material (concrete in the present case) under transient temperature and stress. The difficulties arising from the application of the theory of thermoelastoplasticity to modelling the behaviour of concrete at elevated temperatures are discussed, together with the inadequacy of the existing algorithms that were proposed for perfectly plastic materials, to cope with a nonlinear hardening case. An integration scheme derived from the Euler backward scheme is used to integrate the rate equations. The resulting model is used to analyse existing biaxial data and investigate the effect of a sustained load on the deformational response of concrete under biaxial loading and elevated temperature.

show abstract

Section: De{dg/d<r}{df/d<r}tdementioning

confidence: 99%