TDX
author
Abdel Monsef, Said Ahmed Ibrahim
authoremail
eng_sa3eed2050@yahoo.com
authoremailshow
false
director
Renart Canalias, Jordi
director
Turon Travesa, Albert
2020-10-05T07:54:33Z
2020-10-05T07:54:33Z
2020-07-02
http://hdl.handle.net/10803/669651
Cohesive zone models are widely used for modelling delamination and bonded jointsunder different loading conditions. In the current thesis, an objective inverse method has been developed to extract the cohesive law from experimental load-displacement data for both mode I and mode II. In addition, the influence of the mode II test configuration on the cohesive law of bonded joints is discussed. Besides, the influence of environmental conditions on the fracture behaviour of two types of adhesively bonded joints is experimentally studied for Mode I and Mode II tests. The dependence of the cohesive laws on the testing temperature and ageing is also analysed. Finally, a phenomenological expression that describes the effect of temperature and ageing on the cohesive law shape is formulated. Using this expression, a constitutive cohesive zone model is enhanced to simulate the influence of the environmental conditions on the mechanical response.
eng
Bonded joints
Unions adhesives
Uniones adhesivas
Cohesive model zone
Model de zona cohesiva
Modelo de zona cohesiva
Delamination
Delaminació
Delaminación
Composite materials
Materials compostos
Materiales compuestos
Fracture behaviour
Comportament de fractures
Comportamiento de fracturas
A comprehensive methodology to analyse bonded joints subjected to different environmental conditions
info:eu-repo/semantics/doctoralThesis
URL
http://www.tdx.cat/bitstream/10803/669651/6/tsaiam_20200702.pdf
File
MD5
dff296784e3e00546402159a5bba148f
29590033
application/pdf
tsaiam_20200702.pdf