Publication
On the benefits of a stress criterion for the simulation of cup drawing process
Related publications (45)
An iterative analytical/experimental study of bridging in delamination of the double cantilever beam specimen
Anastasios Vassilopoulos, John Botsis, Behzad Dehghan Manshadi, Ebrahim Farmand Ashtiani
Large scale bridging in mode-I delamination of layered composites is an important toughening mechanism. While its extent depends on constituent materials, it is also influenced by specimen geometry. Here, an analytical approach is adopted to express the th ...
Elsevier2014A study of frictional contact in dynamic fracture along bimaterial interfaces
Jean-François Molinari, Fabian Barras, David Simon Kammer
We investigate numerically the dynamic inplane propagation of a centered crack along bimaterial interfaces using a spectral formulation of the elastodynamic boundary integral equations. Particular attention is given to the effect of contact zones at the su ...
Springer Verlag2014Mixed-Mode I/II fracture behavior of asymmetric adhesively-bonded pultruded composite joints
Thomas Keller, Anastasios Vassilopoulos, Moslem Shahverdi
The mixed-mode fracture behavior of adhesively-bonded pultruded glass fiber-reinforced polymer joints was experimentally investigated using asymmetric mixed-mode bending specimens. The crack propagated along paths outside the symmetry plane and, therefore, ...
Elsevier2014Mixed-Mode Static and Fatigue Failure Criteria for Adhesively-Bonded FRP Joints
Fiber-reinforced polymer (FRP) composites are increasingly used in many load-bearing
structures. Joints are the most critical structural elements as they often become the weak links
in engineering structures. Bonding and bolting are two of the main joini ...
EPFL2013Influence of the moisture content on the fracture characteristics of welded wood joint. Part 2: Mode II fracture
John Botsis, Joël Cugnoni, Parviz Navi, Martin Rhême
As a second part of this series, the present study also addresses the water resistance of joints obtained by friction welding. Here, the mode II fracture is in focus, that is, 4-points end-notched flexure specimens (4-ENF) were investigated with various mo ...
De Gruyter2013Two-Dimensional DDA Contact Constitutive Model for Simulating Rock Fragmentation
Due to the difficulties of fracture mechanics in dealing with multicrack problems, the continuum-based numerical methods always encounter mathematical problems when modeling rock fragmentation, so the alternative discontinuum-based numerical approaches are ...
2012A total fatigue life model for the prediction of the R-ratio effects on fatigue crack growth of adhesively-bonded pultruded GFRP DCB joints
Thomas Keller, Anastasios Vassilopoulos, Moslem Shahverdi
A new phenomenological fatigue crack growth formulation for the modeling and the prediction of the Model fatigue behavior of adhesively-bonded pultruded glass fiber-reinforced polymer double cantilever beam joints under different R-ratios is introduced. Th ...
Elsevier2012Experimental and Numerical Studies of Mode I and Mode II Delamination of Polymer Composites with Embedded Optical Sensors
Over the past decades the use of composite materials has enormously increased, especially in the aeronautical, automotive, and energy production industries. These materials allow to build lighter and larger structures which are more efficient. However, by ...
EPFL2011Mechanics of Growth and Coalescence of Pre-existing Voids in a Ductile Matrix
This research project experimentally and numerically investigates the growth and coalescence of pre-existing voids for a wide range of stress states in a ductile matrix with a special focus on shear dominated loading conditions and presents quantitative ki ...
EPFL2011Fracture and Fatigue of Adhesively-Bonded Fiber-Reinforced Polymer Structural Joints
Being good structural replacement for other conventional material, the pultruded glass fiber reinforced polymer (GFRP) profiles are being increasingly used in civil engineering structures. The connection between components is considered the most suspect ar ...
EPFL2010