Issue 14

T in M Sch Dep mja M Sch Es A B bu En ho het for the cir cre wh ass me K E fra I N bod ass hom situ An exa the def pla H he inter materi . N. James ool of Marine artment of M mes@plymou . Newby ool of Marine kom Research STRACT . Th t which is a gineering c mogeneous erogeneous m of a genu differing cumstances ep, environ ere welding ociated with tallurgical fa YWORDS . C cture; enviro TRODUCTIO istoric analys of unc ies) have be essments fo ogeneous, ations arise. alytical comp mple, the in presence o ormation) an sticity and f face be al perfo Science & E echanical Eng th.ac.uk Science & E and Innovati is paper co determinin omponents and gener and often n ine interfac philosophie where envir mentally-ass is used to j cracking a ctors in me ontinuum nment. N ally, the educ ing the beha racked bodie en very powe r engineering isotropic co lexity is also crease in rigo f a crack. d hydrostat racture are f tween m rmance ngineering, U ineering, Nel ngineering, U on Centre, Ro nsiders an im g factor in m and struct ally continu on-continu e between m s of desig onmental in isted cracki oin compon nd uses case chanical per mechanics; ation of mec viour of stru s subject to e rful in advan artefacts. ntinuum, an introduced a ur necessitat Three dime ic (which re undamentall M. N. James e etallu niversity of Ply son Mandela niversity of Ply sherville, Joha portant top any aspect ures must, um aspects um reality o aterial and n have to fluences ha ng, or corro ents, or wh study exam formance o non-continu hanical engin ctures and m xternal load cing our abil The key a d considerab s the applied ed by a mov nsional stres sist plastic d y controlled t alii, Frattura e rgy and mouth, Plym Metropolitan mouth, Plym nnesburg, Sou ic, and one s of the ser of necessi of applied f material s environme be merged ve a key ro sion), where ere tribology ples drawn f materials. um materia eers has had aterials. In p or deformati ity to calcula ssumptions le complexi loading or d e from unidi s states can eformation by inhomog d Integrità Strut mecha outh (UK) University, P outh (UK) th Africa that is ofte vice perform ty, provide load and tructure an nt, e.g. at a . The in le in determ performan plays a rol from engin ls; metallur a strong fo articular, so on fields) an te internal st in solid me ty is introd eformation rectional loa be resolved and promote eneous, non turale, 14 (2010 nics ort Elizabeth n poorly und ance of m a bridge b displaceme d behaviour surface, or terface has ining perfo ce is domin e. The pape eering prac gical param cus on contin lid mechanic d fracture me resses and str chanics are uced into an field become ding to triaxi into devia fracture) s -isotropic a ) 5-16; DOI : 10 (South Africa erstood or etals (and o etween the nt, and th . This brid can be a vir particular rmance cha ated by fati r focuses o tice to illust eters; case uum mechan s (dealing wi chanics (deal ains and to m usually that alysis when s more realis al constraint toric (which tress compo nd non-cont .3221/IGF-ESIS. ) misinterpre ther materi macrosco e microsco ge can take tual one wh importance racteristics ( gue or fract n the proble rate the role studies; fatig ics as a tool th the behav ing with crac ake realistic the body more com tic; consider, which occur promote sh nents. As b inuum mate 14.01 5 ted, als). pic, pic, the ere in e.g. ure, ms of ue; for iour ked life is a plex for s in ear oth rials

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