Modeling strain rate effect on tensile strength of concrete using damage plasticity model

B Ayhan, E Lale - International Journal of Impact Engineering, 2022 - Elsevier
Experimental researches show that the strength of material increases with strain rate.
However, dynamic response of quasi-brittle materials is significantly different under tensile …

Strain rate dependence of the mesh objectivity in dynamic fracture analyses with the crack band model

T Abdullah, K Kirane - Engineering Fracture Mechanics, 2022 - Elsevier
The crack band model (CBM) is one of the most widely employed energy regularization
techniques in continuum scale finite element fracture analyses. We demonstrate here that for …

A gradient-enhanced damage model with a new equivalent strain based on the Menétrey–Willam function

E Lale, B Ayhan, N Celik - Journal of Engineering Mechanics, 2023 - ascelibrary.org
A new gradient-enhanced damage model is developed based on a new equivalent strain.
This new equivalent strain is derived using the Menétrey–Willam yield function. The …

Regularized Continuum Damage Models for Dynamic Fracture of Brittle Materials and Woven Composites

T Abdullah - 2023 - search.proquest.com
This dissertation presents the development and evaluation of regularized continuum
damage models (CDM) for dynamic fracture in brittle materials and woven fabric composites …

STABILIZATION OF NOTCHED ELEMENTS'FRACTURE BY USING A CONTROL ALGORITHM

E Lale, B Ayhan - Mühendislik Bilimleri ve Tasarım Dergisi, 2023 - dergipark.org.tr
Crack propagation is a significant mechanism for quasi-brittle materials under applied
loading. It can occur very suddenly and causes numerical instabilities and deficiencies in …