Sökning: "linear elastic fracture mechanics"
Visar resultat 6 - 10 av 57 avhandlingar innehållade orden linear elastic fracture mechanics.
6. Fracture mechanical modelling of embossed paper
Sammanfattning : This thesis consists of two scientific papers on strength and fracture of embossed tissue paper. In Paper A an experimental study of embossed tissue paper is presented. The mechanical properties of most soft tissue paper are to a large extent governed by the creping and subsequent embossing process. LÄS MER
7. Elastic-plastic fracture mechanics - Application to rolling contact fatigue in rails
Sammanfattning : Railway structures represent complex mechanical problems involving wave propagation, plastic deformations and material degradation. The wheel-rail contact loads subject the material to repeated cycles of complex stress states resulting in rolling contact fatigue (RCF). LÄS MER
8. Elastic-Plastic Fracture Mechanics and RCF in Rails
Sammanfattning : This thesis concerns issues regarding the modeling and numerical simulation of singularcracks and their propagation in the context of Rolling Contact Fatigue (RCF) in rails.Typically, such cracks are associated with squats and head-checks in the rail head. LÄS MER
9. Fracture and Delamination in Packaging Materials : A Study of Experimental Methods and Simulation Techniques
Sammanfattning : Packages are the means of preservation, distribution and convenience of use for food, medicine and other consumer products. The introduction of a new package-opening technique for a better opening experience requires additional prototype development and physical testing. LÄS MER
10. The strength of glulam beams with holes - A probabilistic fracture mechanics method and experimental tests
Sammanfattning : This thesis deals with experimental tests and methods for strength analysis of glulam beams with holes. Test results and methods for strength analysis available in literature are compiled and discussed. The methods considered comprise both code strength design methods and more general methods for strength analysis. LÄS MER