✦ LIBER ✦

A three-dimensional boundary element formulation for the elastoplastic analysis of cracked bodies

✍ Scribed by A. P. Cisilino; M. H. Aliabadi; J. L. Otegui

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 267 KB
Volume: 42
Category: Article
ISSN: 0029-5981
DOI: 10.1002/(sici)1097-0207(19980530)42:2<237::aid-nme359>3.0.co;2-6

No coin nor oath required. For personal study only.

✦ Synopsis

In this paper a general boundary element formulation for the three-dimensional elastoplastic analysis of cracked bodies is presented. The non-linear formulation is based on the Dual Boundary Element Method. The continuity requirements of the field variables are fulfilled by a discretization strategy that incorporates continuous, semi-discontinuous and discontinuous boundary elements as well as continuous and semidiscontinuous domain cells. Suitable integration procedures are used for the accurate integration of the Cauchy surface and volume integrals. The explicit version of the initial strain formulation is used to satisfy the non-linearity. Several examples are presented to demonstrate the application of the proposed method.

📜 SIMILAR VOLUMES

Boundary element analysis of three-dimen

Boundary element analysis of three-dimensional cracks in anisotropic solids

✍ Ernian Pan; F. G. Yuan 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 307 KB 👁 1 views

This paper presents a boundary element analysis of linear elastic fracture mechanics in three-dimensional cracks of anisotropic solids. The method is a single-domain based, thus it can model the solids with multiple interacting cracks or damage. In addition, the method can apply the fracture analysi

Dynamic and static analysis of cracks us

Dynamic and static analysis of cracks using the hypersingular formulation of the Boundary Element Method

✍ Francisco Chirino; Ramón Abascal 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 217 KB 👁 1 views

A new methodology for computing dynamic stress intensity factors in the frequency domain based on the mixed boundary element method, a combination of the equations corresponding to the integral representations of displacements and tractions, is proposed and analysed. The expressions of hypersingular

FRACTURE AND DAMAGE ANALYSIS OF A CRACKE

FRACTURE AND DAMAGE ANALYSIS OF A CRACKED BODY BY A NEW BOUNDARY ELEMENT MODEL

✍ QIN, Q. H. ;YU, S. W. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 144 KB

Based on the concept of discontinuity displacement, an analytical solution for cracked thin plates has been derived in which displacements and stresses in a solid can be expressed by the linear distributed discontinuity displacements on the whole boundary. By way of the potential variational princip

Formulation of a super-element for the d

Formulation of a super-element for the dynamic problem of a cracked plate

✍ Go, Cheer Germ ;Lin, Cheng I ;Lin, Yee Shown ;Wu, Shi Hong 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB 👁 1 views

On the formulation of a super-element for the dynamic problem of a cracked plate, a geometric series of similar elements is designed. This group of elements is generated layer by layer, approaching in®nitely small size around the point of singularity. The relations between similar elements for the s

A time-dependent formulation of dual bou

A time-dependent formulation of dual boundary element method for 3D dynamic crack problems

✍ P.H. Wen; M.H. Aliabadi; A. Young 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 188 KB 👁 1 views

In this paper, the dual boundary element method in time domain is developed for three-dimensional dynamic crack problems. The boundary integral equations for displacement and traction in time domain are presented. By using the displacement equation and traction equation on crack surfaces, the discon

INFINITE DOMAIN CORRECTION FOR IN-PLANE

INFINITE DOMAIN CORRECTION FOR IN-PLANE BODY WAVES IN A TWO-DIMENSIONAL BOUNDARY ELEMENT ANALYSIS

✍ ERNEST HEYMSFIELD 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 288 KB 👁 1 views

A method is described in this article to correct for the error that arises with the discretization of domains that include boundaries that extend to infinity. Typically when open domains are discretized, part of the boundary is excluded from the calculation resulting in a truncated region. Of partic