[HTML][HTML] A review of recent trends and challenges in numerical modeling of the anisotropic behavior of hardened 3D printed concrete

A Baktheer, M Classen - Additive Manufacturing, 2024 - Elsevier
The rapid development of 3D printed concrete (3DPC) technology, in particular the
integration of reinforcement into the components, emphasizes the need for accurate …

[HTML][HTML] Phase field cohesive zone modeling for fatigue crack propagation in quasi-brittle materials

A Baktheer, E Martínez-Pañeda, F Aldakheel - Computer Methods in …, 2024 - Elsevier
The phase field method has gathered significant attention in the past decade due to its
versatile applications in engineering contexts, including fatigue crack propagation modeling …

Stress configuration‐based classification of current research on fatigue of reinforced and prestressed concrete

A Baktheer, C Goralski, J Hegger… - Structural …, 2024 - Wiley Online Library
The limited understanding of the fatigue behavior of reinforced and prestressed concrete
members is one of the reasons why many structures do not reach their expected service life …

Monitoring concept for the propagation of compressive fatigue in externally prestressed concrete beams using digital image correlation and fiber optic sensors

H Becks, A Baktheer, S Marx, M Classen… - Fatigue & Fracture of …, 2023 - Wiley Online Library
The fatigue of concrete has been the subject of research for many years, and yet, there are
still open questions. In particular, the fatigue‐induced damage evolution accompanied by a …

Automated detection of propagating cracks in RC beams without shear reinforcement based on DIC-controlled modeling of damage localization

F Seemab, M Schmidt, A Baktheer, M Classen… - Engineering …, 2023 - Elsevier
In spite of an extensive research in the past few decades, design of beams without shear
reinforcement is still considered to be a challenging task. With the goal of develo** …

Fatigue‐induced stress redistribution in prestressed concrete beams modeled using the constitutive hypothesis of inter‐aggregate degradation

A Baktheer, S Esfandiari, M Aguilar… - Fatigue & Fracture of …, 2024 - Wiley Online Library
Despite of intensive research on concrete fatigue, the transfer of fatigue characteristics
determined at the material level to the structural level remains a challenging issue. In this …

Modeling cyclic crack propagation in concrete using the scaled boundary finite element method coupled with the cumulative damage-plasticity constitutive law

O Alrayes, C Könke, ET Ooi, KM Hamdia - Materials, 2023 - mdpi.com
Many concrete structures, such as bridges and wind turbine towers, fail mostly due to the
fatigue rapture and bending, where the cracks are initiated and propagate under cyclic …

On the energy dissipation in confined concrete subjected to shear cyclic loading

M Aguilar, A Baktheer, R Chudoba - PAMM, 2023 - Wiley Online Library
The establishment of a simple engineering rule for predicting the fatigue failure of concrete
has been pursued over the past decades. An energetic approach to the matter seems to be …

A damage constitutive model for concrete under uniaxial compression capturing strain localization

Y Wang - Cement and Concrete Research, 2024 - Elsevier
This paper presents a damage constitutive equation capturing the feature of strain
localization and, on this basis, proposes a novel damage constitutive model for concrete …

A numerical study of crack mixed mode model in concrete material subjected to cyclic loading

O Alrayes, C Könke, KM Hamdia - Materials, 2023 - mdpi.com
In quasi-brittle materials such as concrete, numerical methods are frequently used to
simulate the crack propagation for monotonic loading. However, further research and action …