Stress intensity factors (KI) of cracked non-load-carrying cruciform welded joints repaired with CFRP materials

Chen, Tao; Yu, Qian-Qian; Gu, Xianglin; Nie, G.H.

doi:10.1016/j.compositesb.2012.09.024

Cited by 19 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, fatigue damage of welded joints is due to weld-induced imperfections and stress concentration produced by geometric discontinuity. [8]constructed finite element models of non-load-carrying cruciform welded joints. SIF were analyzed to evaluate the strengthening efficiency.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Strengthened Cruciform Welded Joints Using FRP

2021

IJESRT

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Strengthened Cruciform Welded Joints Using FRP

2021

IJESRT

View full text Add to dashboard Cite

show abstract

“…Few researchers have attempted to perform numerical simulation on welded joints strengthened with CFRP materials [26,[32][33][34]. Chen et al [26,32,33] established finite element models and boundary element models of non-load-carrying cruciform welded joints. SCF and SIF were analysed to evaluate the strengthening efficiency.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Behaviour of CFRP Strengthened Out-of-Plane Gusset Welded Joints with Double Cracks

Chen

et al. 2015

Polymers

Self Cite

View full text Add to dashboard Cite

This paper investigates the fatigue behaviour of out-of-plane gusset welded joints strengthened with carbon fibre reinforced polymer (CFRP) laminates. Two notches were introduced at the weld toes adjacent to longitudinal plate ends to simulate the initial damage. Variables including the stress range, single-or double-sided strengthening and modulus of CFRP materials were considered. It was found that both cracks propagated under fatigue loading. All the specimens fractured along one predefined notch when the fatigue crack reached a certain length while the other crack also grew to some extent. Test results showed that the addition of composite materials significantly prolonged the fatigue life of specimens by as much as 1.28 to 8.17 times. Double-sided bond and ultra-high modulus CFRP materials led to a better strengthening efficiency. Thereafter, a series of numerical analyses were performed to study the stress intensity factor (SIF) and crack opening displacement (COD). Local debonding around the crack tip at the adhesive-steel interface was taken into consideration. Finally, the fatigue life of all the specimens was evaluated based on the linear elastic fracture mechanism (LEFM) theory and the predicted results agreed well with the experimental data.

show abstract

Design optimization of adhesive-bonded FRP patches for repairing fatigue cracks in steel structures

Lenwari,

2025

Rehabilitation of Metallic Structural Systems Using Fiber Reinforced Polymer (FRP) Composites

View full text Add to dashboard Cite

Stress intensity factors (KI) of cracked non-load-carrying cruciform welded joints repaired with CFRP materials

Cited by 19 publications

References 15 publications

Experimental Investigation of Strengthened Cruciform Welded Joints Using FRP

Experimental Investigation of Strengthened Cruciform Welded Joints Using FRP

Fatigue Behaviour of CFRP Strengthened Out-of-Plane Gusset Welded Joints with Double Cracks

Design optimization of adhesive-bonded FRP patches for repairing fatigue cracks in steel structures

Contact Info

Product

Resources

About