?url_ver=Z39.88-2004&rft_id=arXiv%3A1702.01102&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Feprints.imtlucca.it%2F3679%2F&rft.title=Revisiting+the+problem+of+a+crack+impinging+on+an+interface%3A+a+modeling+framework+for+the+interaction+between+the+phase+field+approach+for+brittle+fracture+and+the+interface+cohesive+zone+model&rft.creator=Paggi%2C+Marco&rft.creator=Reinoso%2C+Jos%C3%A9&rft.subject=T+Technology+(General)&rft.subject=TJ+Mechanical+engineering+and+machinery&rft.description=The+problem+of+a+crack+impinging+on+an+interface+has+been+thoroughly+investigated+in+the+last+three+decades+due+to+its+important+role+in+the+mechanics+and+physics+of+solids.+In+this+investigation%2C+this+problem+is+revisited+in+view+of+the+recent+progresses+on+the+phase+field+approach+to+brittle+fracture.+In+this+concern%2C+a+novel+formulation+combining+the+phase+field+approach+for+modeling+brittle+fracture+in+the+bulk+and+a+cohesive+zone+model+for+pre-existing+adhesive+interfaces+is+herein+proposed+to+investigate+the+competition+between+crack+penetration+and+deflection+at+an+interface.+The+model%2C+implemented+within+the+finite+element+method+framework+using+a+monolithic+fully+implicit+solution+strategy%2C+is+applied+to+provide+a+further+insight+into+the+understanding+of+the+role+of+model+parameters+on+the+above+competition.+In+particular%2C+in+this+study%2C+the+role+of+the+fracture+toughness+ratio+between+the+interface+and+the+adjoining+bulks+and+the+characteristic+fracture-length+scales+of+the+dissipative+models+are+analyzed.+In+the+case+of+a+brittle+interface%2C+the+asymptotic+predictions+based+on+linear+elastic+fracture+mechanics+criteria+for+crack+penetration%2C+single+deflection+or+double+deflection+are+fully+captured+by+the+present+method.+Moreover%2C+by+increasing+the+size+of+the+process+zone+along+the+interface%2C+or+by+varying+the+internal+length+scale+of+the+phase+field+model%2C+new+complex+phenomena+are+emerging%2C+such+as+simultaneous+crack+penetration+and+deflection+and+the+transition+from+single+crack+penetration+to+deflection+and+penetration+with+subsequent+branching+into+the+bulk.&rft.publisher=arXiv&rft.date=2016&rft.type=Working+Paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.rights=cc_by_nc&rft.identifier=http%3A%2F%2Feprints.imtlucca.it%2F3679%2F1%2F1702.01102.pdf&rft.identifier=++Paggi%2C+Marco+and+Reinoso%2C+Jos%C3%A9++Revisiting+the+problem+of+a+crack+impinging+on+an+interface%3A+a+modeling+framework+for+the+interaction+between+the+phase+field+approach+for+brittle+fracture+and+the+interface+cohesive+zone+model.++Working+Paper+++arXiv+++++++(Submitted)+++&rft.relation=https%3A%2F%2Farxiv.org%2Fpdf%2F1702.01102&rft.relation=arXiv%3A1702.01102