TY - GEN
T1 - Simulating ductile crack growth in carbon steel using an extended finite element method (XFEM)
AU - Hassan, Muhammad Shariq
AU - Salawdeh, Suhaib
AU - Goggins, Jamie
N1 - Publisher Copyright:
© 2018 Ingenta.
PY - 2017
Y1 - 2017
N2 - A novel methodology for simulation of crack growth in a 3D steel model is presented. This methodology is vital for the safe and full design of steel elements under harsh environment. The methodology, which is based on the extended finite element method (XFEM), neither requires the updating mesh over the course of the analysis, nor the priori definition of a crack length. Many other methods require the definition of crack and/or location of the crack to predict fracture. The methodology was validated against measurements from conventional static tests. The tests were carried out on the coupons of structural hollow tubes that are fabricated of 40×40×2.5SHS, 50×25×2.5RHS, 20×20×2.0SHS (mm) sections. Predictions of crack growth are used to study the behaviour of axially loaded steel to fracture. A major benefit is that the proposed method can be advanced for modelling fracture/fatigue of moderate to large structures to earthquakes.
AB - A novel methodology for simulation of crack growth in a 3D steel model is presented. This methodology is vital for the safe and full design of steel elements under harsh environment. The methodology, which is based on the extended finite element method (XFEM), neither requires the updating mesh over the course of the analysis, nor the priori definition of a crack length. Many other methods require the definition of crack and/or location of the crack to predict fracture. The methodology was validated against measurements from conventional static tests. The tests were carried out on the coupons of structural hollow tubes that are fabricated of 40×40×2.5SHS, 50×25×2.5RHS, 20×20×2.0SHS (mm) sections. Predictions of crack growth are used to study the behaviour of axially loaded steel to fracture. A major benefit is that the proposed method can be advanced for modelling fracture/fatigue of moderate to large structures to earthquakes.
KW - Ductile fracture
KW - Extended finite element method
KW - Steel braced frames
KW - Steel coupons
KW - Structural hollow sections
UR - http://www.scopus.com/inward/record.url?scp=85050009479&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85050009479
T3 - IABSE Conference, Vancouver 2017: Engineering the Future - Report
SP - 2543
EP - 2550
BT - IABSE Conference, Vancouver 2017
PB - International Association for Bridge and Structural Engineering (IABSE)
T2 - 39th IABSE Symposium in Vancouver 2017: Engineering the Future
Y2 - 21 September 2017 through 23 September 2017
ER -