EMBEDDED REPRESENTATION OF FRACTURE IN CONCRETE WITH MIXED FINITE-ELEMENTS

被引：55

作者：

LOTFI, HR

SHING, PB

机构：

[1] Department of Civil Environmental & Architectural Engineering, University of Colorado, Boulder, Colorado

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 1995年 / 38卷 / 08期

关键词：

FINITE ELEMENT; MIXED ELEMENT; DISCONTINUOUS DISPLACEMENT FIELD; VARIATIONAL PRINCIPLE CONCRETE FRACTURE; EMBEDDED CRACK; SMEARED CRACK; DISCRETE CRACK;

D O I：

10.1002/nme.1620380805

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As an alternative to the smeared and discrete crack representations, an embedded representation of fracture for finite element analysis of concrete structures is presented. The three-field Hu-Washizu variational statement is extended to bodies with internal discontinuities. The extended variational statement is then utilized for formulating elements with a discontinuous displacement field. The new elements are capable. of modelling different deformation modes of an internal discontinuity at the element level. The satisfactory performance of the embedded crack representation is verified by several case studies on concrete fracture.

引用

页码：1307 / 1325

页数：19

共 27 条

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