MOVING SINGULARITY-FINITE-ELEMENT MODELING OF FAST FRACTURE IN FINITE BODIES: ″GENERATION″ & ″PROPAGATION″ STUDIES.

T. Nishioka, R. B. Stonesifer, S. N. Atluri

Research output: Contribution to conferencePaper

Abstract

Results of a ″generation″ study (i. e. , determining the dynamic stress intensity factor for a crack propagation with a given velocity history), using moving singularity-elements, wherein, alternatively, propagating-crack eigenfunctions, static-crack eigenfunctions, or distorted-isoparametric approximations are employed, are reported. The relative accuracies of the three types of moving singular-elements are assessed. Also, results of a ″propagation study″ (i. e. , determining the crack-tip propagation history based on a given dynamic-fracture-toughness versus crack-velocity relation), involving a rectangular double cantilever beam specimen, and their comparison with the previously reported experimental results are included.

Original languageEnglish
Pages489-507
Number of pages19
StatePublished - 1980
EventNumer Methods in Fract Mech, Proc of the Int Conf, 2nd - Swansea, Wales
Duration: Jul 7 1980Jul 11 1980

Conference

ConferenceNumer Methods in Fract Mech, Proc of the Int Conf, 2nd
CitySwansea, Wales
Period07/7/8007/11/80

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    Nishioka, T., Stonesifer, R. B., & Atluri, S. N. (1980). MOVING SINGULARITY-FINITE-ELEMENT MODELING OF FAST FRACTURE IN FINITE BODIES: ″GENERATION″ & ″PROPAGATION″ STUDIES.. 489-507. Paper presented at Numer Methods in Fract Mech, Proc of the Int Conf, 2nd, Swansea, Wales, .