Current work utilizes cohesive zone modeling to study the fracture properties of metals. This study proposes a hybrid technique experimental/numerical to extract cohesive fracture properties of elasto-plastic material using inverse analysis and digital image correlation. Two approaches are suggested- a shape optimization technique and a parameter optimization for the PPR potential-based cohesive zone model. In shape optimization approach, CZM is obtained by piecewise interpolation of the optimized interpolation points whereas in parameter optimization for the PPR potential-based CZM, the CZM is obtained by using the PPR model which utilized the parameters coming from an optimization scheme. Unconstrained, derivative free Nelder-Mead scheme ...
This thesis concerns modeling ductile fracture using a cohesive zone model (CZM) and finite element ...
Constitutive parameters identification for elasto-plastic fracture is a complex problem due to the i...
International audienceA major challenge when using cohesive zone models (CZMs) in numerical damagean...
Current work utilizes cohesive zone modeling to study the fracture properties of metals. This study...
Abstract The accuracy of an adopted cohesive zone model (CZM) can affect the simulated fracture resp...
Five different cohesive zone models (CZMs), including bilinear, polynomial, trapezoidal, exponential...
The cohesive zone model (CZM) is a key technique for finite element (FE) simulation of fracture of q...
International audienceIn recent years, cohesive zone models (CZMs) have been developed and widely us...
International audienceIn recent years, cohesive-zone models have been formulated and used to numeric...
International audienceWe present a new methodology for the identification of a zone cohesive model t...
International audienceIn recent years, cohesive-zone models have been formulated and used to numeric...
AbstractInverse analysis is widely applied to the identification of material properties or model par...
International audienceSince several years, cohesive zone models have been developed and used to nume...
This thesis is concerned with the characterisation of the parameters governingthe tension-softening ...
The fracture toughness of in-service equipment and irradiation materials can be obtained from the ri...
This thesis concerns modeling ductile fracture using a cohesive zone model (CZM) and finite element ...
Constitutive parameters identification for elasto-plastic fracture is a complex problem due to the i...
International audienceA major challenge when using cohesive zone models (CZMs) in numerical damagean...
Current work utilizes cohesive zone modeling to study the fracture properties of metals. This study...
Abstract The accuracy of an adopted cohesive zone model (CZM) can affect the simulated fracture resp...
Five different cohesive zone models (CZMs), including bilinear, polynomial, trapezoidal, exponential...
The cohesive zone model (CZM) is a key technique for finite element (FE) simulation of fracture of q...
International audienceIn recent years, cohesive zone models (CZMs) have been developed and widely us...
International audienceIn recent years, cohesive-zone models have been formulated and used to numeric...
International audienceWe present a new methodology for the identification of a zone cohesive model t...
International audienceIn recent years, cohesive-zone models have been formulated and used to numeric...
AbstractInverse analysis is widely applied to the identification of material properties or model par...
International audienceSince several years, cohesive zone models have been developed and used to nume...
This thesis is concerned with the characterisation of the parameters governingthe tension-softening ...
The fracture toughness of in-service equipment and irradiation materials can be obtained from the ri...
This thesis concerns modeling ductile fracture using a cohesive zone model (CZM) and finite element ...
Constitutive parameters identification for elasto-plastic fracture is a complex problem due to the i...
International audienceA major challenge when using cohesive zone models (CZMs) in numerical damagean...