Search for dissertations about: "mixed-mode cohesive failure"

Found 5 swedish dissertations containing the words mixed-mode cohesive failure.

2. 1. On Cohesive Modelling of Carbon/Epoxy Composites : Delamination and Fibre Compressive Failure

   Author : Daniel Svensson; Ulf Stigh; Bent Sørensen; Högskolan i Skövde; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFRP; Cohesive zone model; J-integral; LEFM; Delamination; Compressive failure; Technology; Teknik; Mechanics of Materials; Materialmekanik;

   Abstract : Carbon Fibre Reinforced Polymers are widely used in engineering applications where weight saving and high mechanical performance are a key factors. However, an inheren tweakness of laminated CFRP:s is there relatively low resistance to delamination. Therst part of this thesis is devoted to extract cohesive laws associated with delamination. READ MORE

4. 2. Application of cohesive modeling in joining technology

   Author : Saeed Salimi; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rivet joints; mixed-mode cohesive failure; mixed material; J-integral; Thick adhesive layer;

   Abstract : ABSTRACTThis thesis summarizes the development of cohesive modeling of joints. It presents some new developments regarding the effects of non-zero thickness of adhesive layers and a novel approach of using the concept of cohesive modeling to characterize the failure behavior of rivet joints. READ MORE

5. 3. Application of cohesive modeling in joining technology : Thick adhesive layers and rivet joints

   Author : Saeed Salimi; Högskolan i Skövde; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknik; Technology;

   Abstract : This thesis summarizes the development of cohesive modeling of joints. It presents some new developments regarding the effects of non-zero thickness of adhesive layers and a novel approach of using the concept of cohesive modeling to characterize the failure behavior of rivet joints. READ MORE

6. 4. Modelling of Delamination Growth in Composite Structures

   Author : Niklas E. Jansson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; large deformation; interface; composite materials; 3D-shell; cohesive zone; regularization; shell element; delamination;

   Abstract : Delaminations constitute an important damage and failure mode in polymeric composite laminates. In order to explicitly incorporate and model the delamination progression within a finite element analysis, the meso-modelling concept is applied in the present work. The laminate is thereby represented by separate layers connected with interfaces. READ MORE

7. 5. Modelling the time-dependent, damage and fracture mechanical properties of load-bearing soft biological tissues

   Author : Christopher Miller; T. Christian Gasser; Anna Pandolfi; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid Mechanics; Hållfasthetslära;

   Abstract : Load-carrying soft biological tissues exhibit a wide range of complex time-dependent, damage, and fracture mechanical properties. An effective comprehension of such behaviour is advantageous in characterising tolerance to injury and can provide valuable insights regarding the incidence and progression of certain diseases. READ MORE