Collapse loads for circumferentially through-wall cracked pipes subjected to combined torsion and bending moments

Hasegawa, Kunio; Li, Yinsheng; Osakabe, Kazuya

doi:10.1016/j.engfracmech.2013.12.013

Cited by 11 publications

(7 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They proposed the method for estimating the collapse load for cracked cylinder with the ratios of crack depth to wall thickness ranging between 0.5 and 0.75. Kunio Hasegawa et al [6] extended the work proposed by Yinsheng Li et al They found that when the value of torsion moment is less than 20% of yield stress, the plastic collapse moment for circumferential cracked cylinders under combined bending and torsion moment can be estimated by the pure bending moment.…”

Section: Introductionmentioning

confidence: 61%

“…The material used for cylinder is a high-ductility stainless steel [5,6]. The Young's modulus is selected as 200 GPa with Poisson's ratio of 0.3.…”

Section: Model Constructionmentioning

confidence: 99%

“…In all cases, the outer radius of the cylinder is 300 mm, and the length of the cylinders is set to be longer than 8 � in order to avoid boundary effects on the crack ligament [5,6].…”

Section: Model Constructionmentioning

confidence: 99%

See 2 more Smart Citations

Plastic collapse load analysis for circumferential cracked cylinder under pure torsion

Arun

Fongsamootr

2018

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. This paper aims to analyze the plastic collapse moment of circumferential cracked cylinder under pure torsion using the NSC approach and 3D FE model. The material considered in this work is assumed to be elastic-perfectly plastic. The influences of geometric parameters of crack and cylinder, such as � ⁄ , ⁄ and ⁄ on solution of plastic collapse load are also investigated. The analysis shows that for the case of ⁄ < 0.75, the values of limit torsion moment can be estimated by NSC analysis which provides conservative results. However, for the case of deeper crack, ⁄ ≥ 0.75, the limit load solution predicted by NSC approach may not be safe, because the distribution of stress at yielding state does not correspond to the NSC assumption. Therefore, the approximated solution of collapse torsion moment for the case of deeper crack with ⁄ ≥ 0.75 is proposed based on FE analysis.

show abstract

Section: Introductionmentioning

confidence: 61%

“…The material used for cylinder is a high-ductility stainless steel [5,6]. The Young's modulus is selected as 200 GPa with Poisson's ratio of 0.3.…”

Section: Model Constructionmentioning

confidence: 99%

See 1 more Smart Citation

Plastic collapse load analysis for circumferential cracked cylinder under pure torsion

Arun

Fongsamootr

2018

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…The material used for cylinder is a high-ductility stainless steel [6,10]. The Young's modulus is selected as 200 GPa with Poisson's ratio of 0.3.…”

Section: Model Constructionmentioning

confidence: 99%

“…In all cases, the outer diameter of a cylinder, � is 600 mm, and the length of the cylinder is eight times larger than the outer diameter in order to avoid boundary effects on the crack ligament [6,10]. To prevent problem associated with shear locking, 20-node quadratic brick element with reduced integration (C3D20R) is used to generate the models.…”

Section: Model Constructionmentioning

confidence: 99%

Collapse load analysis for circumferentially cracked cylinder subjected to combined torsion and bending moments

Arun

Fongsamootr

2018

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. Cylinder is one of the most commonly used components which has a risk of having circumferential cracks, especially in the welding zone. When cracks are discovered, it is necessary to perform the failure strength assessment of cracked cylinder and the limit load play an important part as the input of the assessment. At present, the limit load solution for circumferential cracked cylinder under combined bending and torsion can be estimated by using the methods of equivalent moment or biaxial failure parameter. However, these methods still have some limitations. The main aim of this paper is to propose the alternative method for predicting the failure moment of circumferential cracked cylinder under combined bending and torsion. The method used in this paper is based on the modification of biaxial failure parameter and the data from finite element analysis. Details of this method is presented in this paper.

show abstract

Exact analysis of mode-III cohesive fracture in layered elastic composites

Song

Levy

2020

Int J Fract

View full text Add to dashboard Cite

Collapse loads for circumferentially through-wall cracked pipes subjected to combined torsion and bending moments

Cited by 11 publications

References 9 publications

Plastic collapse load analysis for circumferential cracked cylinder under pure torsion

Plastic collapse load analysis for circumferential cracked cylinder under pure torsion

Collapse load analysis for circumferentially cracked cylinder subjected to combined torsion and bending moments

Exact analysis of mode-III cohesive fracture in layered elastic composites

Contact Info

Product

Resources

About