<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "A new analytical critical thrust force model for delamination analysis of laminated composites during drilling operation"^^ . "Fibre reinforced polymer (FRP) composite laminates are employed in many industrial applications due to\r\ntheir attractive mechanical and structural properties. Machining operation, such as drilling of FRP\r\nlaminates, plays a significant role in the assembly of parts in aircraft and spacecraft production. Among\r\nother production bottlenecks, drilling-induced delamination remains a major defect which adversely\r\naffects the quality of assembly parts. An efficient strategy in preventing this problem is the calculation of\r\nthe critical thrust force above which delamination is initiated. Therefore, in this study, a new analytical\r\nmodel is proposed to predict the critical thrust force for delamination. Unlike the general models in the\r\nliterature which derived only mode I strain energy release rate based on the assumption of classical\r\nlaminate plate theory (CLPT) combined with linear elastic fracture mechanics (LEFM) mode I considerations\r\nin the elliptic delamination zone, the proposed analytical model is derived based on first-order\r\nshear deformation theory (FSDT) and accounts for mode I and mode II strain energy release rates in\r\nthe delamination zone. This strategy allows to activate mixed mode criteria for delamination initiation\r\nwhich is a valid assumption for laminates with layers of different orientations. The present model is\r\npartly derived for general laminates subject to distributed loading and further extended to cross-ply\r\nlaminate sequence subject to a mixed load condition. The results show that the effect of shear deformation\r\nin the prediction of the critical thrust force is influential with increasing ply thickness and the\r\neffect of chisel edge on shear deformation is more profound in the distributed load regime."^^ . "2017-05-18" . "124" . . "Elsevier"^^ . . . "Composites Part B: Engineering"^^ . . . "13598368" . . . . . . . . . . . . . . . . "Marco"^^ . "Paggi"^^ . "Marco Paggi"^^ . . "H.N."^^ . "Dhakal"^^ . "H.N. Dhakal"^^ . . "Saheed Olalekan"^^ . "Ojo"^^ . "Saheed Olalekan Ojo"^^ . . "S.O."^^ . "Ismail"^^ . "S.O. Ismail"^^ . . . . . "HTML Summary of #3801 \n\nA new analytical critical thrust force model for delamination analysis of laminated composites during drilling operation\n\n" . "text/html" . . . "T Technology (General)"@en . . . "TJ Mechanical engineering and machinery"@en . .