Print Email Facebook Twitter Residual Stress Analysis within Structures using Incremental Hole Drilling Title Residual Stress Analysis within Structures using Incremental Hole Drilling Author Negem, Taha (TU Delft Aerospace Engineering; TU Delft Aerospace Structures & Materials) Contributor Sinke, J. (mentor) Degree granting institution Delft University of Technology Programme Aerospace Engineering Date 2018-09-27 Abstract Residual stress analysis within hybrid structures is the focus of this study. The non linear stresses through the thickness are determined using a semi-destructive method known as Incremental Hole Drilling (IHD). Finite element modeling is used to build a mathematical code simulating GLARE laminates with initial residual stresses applied. The code includes the structure, orientation, mechanical and micro-thermal properties of the constituents into account. Matrices of elastic coefficients that represent the stress-strain relation within the laminate are found. In addition, strain responses are measured during incremental hole drilling of the GLARE laminates using tools specifically designed for hole drilling. Using the numerically determined matrices in conjugation with the experimental strain outputs lead to the computation of residual stresses. Verification and validation of the simulation models and the stress results are done through the use of theoretical methods such as the Classical Laminate Theory. Subject Stress AnalysisGlareStrain MeasurementHole DrillingIncremental Hole DrillingNonlinear stress AnalysisFinite Element ModelingANSYS APDL To reference this document use: http://resolver.tudelft.nl/uuid:ee4cc20c-1b1a-4c74-8cf9-3ccae1cbd4ea Part of collection Student theses Document type master thesis Rights © 2018 Taha Negem Files PDF Thesis_Report.Taha_Negem.pdf 5.81 MB Close viewer /islandora/object/uuid:ee4cc20c-1b1a-4c74-8cf9-3ccae1cbd4ea/datastream/OBJ/view