You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.


    The Influence of Plasticity and Geometry on the Mixed Mode Fracture of PMMA

    Published: 0

      Format Pages Price  
    PDF (280K) 17 $25   ADD TO CART
    Complete Source PDF (11M) 541 $120   ADD TO CART

    Cite this document

    X Add email address send
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    The effects of changing notch tip constraint in mixed modes I/II, through the influence of plasticity and geometry, are studied in single edge notch (SEN) specimens of PMMA using a newly developed test apparatus. Elastic-plastic finite element analyses show the different constraint effects between notched and cracked specimens. The influence of molecular weight is also investigated. In a parallel study, the behaviour of PMMA under mixed modes I/III is studied using circumferentially notched round bar (CNRB) specimens. Two sizes of specimen, both notched, are tested to identify the role of constraint in this type of fracture. The results from both types of shear test show that the type of crack, mode of loading, and the load history all have an influence on the role of constraint and therefore its fracture properties of PMMA.


    mixed mode fracture, elastic-plastic fracture, geometry, PMMA

    Author Information:

    Davenport, JCW
    Structural Engineer, Nuclear Electric, Berkeley Technology Centre, Berkeley, Glos.

    Smith, DJ
    Reader, University of Bristol, Bristol,

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP14642S