摘要:

AbstractA two‐dimensional consolidation analysis of clay deposits was made with an elasto‐viscoplastic constitutive model and Biot's consolidation theory. One‐ and two‐dimensional consolidation problems were analysed numerically by the finite element and finite difference methods. Results show that the proposed method can describe the effect of sample thickness and aging on consolidation phenomena. The two‐dimensional behaviour of a clay foundation during the construction of embankments also was

ISSN:0363-9061    

DOI:10.1002/nag.1610100102

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractAn incremental finite element formulation for elasto‐plastic bodies subjected to large strains and large displacements is presented in this paper. The formulation is in Lagrangian co‐ordinates (material description) and the plasticity model employed is the extended von Mises. The bearing capacity of a strip footing and the stability of an earth slope illustrate the applicability of this the

ISSN:0363-9061    

DOI:10.1002/nag.1610100103

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractA non‐linear three‐dimensional finite element procedur is developed and applied for the analysis of pile group foundations. The numerical procedure allows for elastic, non‐linear elastic and elastic‐plastic hardening behaviour of sand. In order to include the interaction effects involving relative slip and debonding, the thin‐layer interface element is used. The predictions for displacements and loads obtained from the numerical procedure are compared with laboratory model test results of a pile group. Displacements, stresses and forces distribution in various components of the pile group are also examined. Furthermore, the effects of the non‐linear soil response and relative motions at the interface are indentified an

ISSN:0363-9061    

DOI:10.1002/nag.1610100104

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractAn approach is presented for the analysis of linear and non‐linear responses of vertically loaded pile groups. The soil behaviour of individual piles in modelled using load‐transfer curves and the pile‐soil‐pile interaction is determined based on Mindlin's solution. Good agreement between the present method of analysis and the rigorous boundary integral method is observed for the computation of the response of pile groups embedded in a homogeneous, isotropic elastic half‐space. The computed non‐linear response of pile groups compares favourably with measured results from field

ISSN:0363-9061    

DOI:10.1002/nag.1610100105

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractA problem common to most numerical methods of analysing the vibration of a rigid body on an elastic half space is indentified especially as regards the arbitrary truncation of the semi‐infinite half space or the numerically expensive computations involved in some of the methods. This paper presents a boundary integral equation (BIE) method of defining a finite domain to replace the half space and consists of evaluating the BIE over the domain. A mathematical justification is provided for defining the domain, and the error involved in such truncation of the half space in shown to be small. Yet the computations are very cheap owing to the simple trigonometric/algebraic functions involved in the BIE. The accuracy of the method is quite commendable especially as seen from the results presented for the circular foundation for which analytical and experimental solutions are available for compariso

ISSN:0363-9061    

DOI:10.1002/nag.1610100106

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractA constitutive operator split method with implicit‐explicit time integration is presented for the transient analysis of rigid block models of jointed media. The linear portion of the joint constitutive law is integrated by an implicit method and the non‐linear, time dependent portion is integrated by an explicit method. The method features the stability of implicit procedures as well as the flexibility of explicit procedures for non‐linear problems. The solutions obtained with this method are compared to the solutions obtained by the explicit central difference method; in all cases there is good to excellent agreement. For some problems, particularly for those with low frequency excitation, it is shown that the implicit‐explicit method can result in a substantial savings over more conventional explicit

ISSN:0363-9061    

DOI:10.1002/nag.1610100107

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610100109

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610100110

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610100101

出版商:John Wiley&Sons, Ltd    

年代:1986

数据来源: WILEY