A numerical investigation of elastoplastic deformation of cracks in tubular specimens subjected to combined torsional and axial loading

Floros, Dimosthenis; Ekberg, Anders; Runesson, Kenneth

doi:10.1016/j.ijfatigue.2016.06.008

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…As for the problem of combined tensile-torsional loads on thin-walled circular tubes, the existing literature mainly investigated the mechanical behavior [1,2,[8][9][10][11][12], fatigue and cracks [3,4,[13][14][15], shape memory alloys [5,16], microstructure [6,17], loading path control [18], strain measurement method [7], composite phase change wave [19], buckling analysis [20], and other aspects of engineering materials by numerical methods and experimental tests. However, most related research studies are individualized cases for specific materials, and only a few studies focus on the influence of different loading paths on the mechanical behavior of engineering materials in general.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Combined Tensile‐Torsional Loading Path on the Stress/Strain States of Thin‐Walled Circular Tubes

Gao

Shao

et al. 2020

Advances in Civil Engineering

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In this paper, an elastoplastic analysis model of thin-walled circular tubes under the combined action of axial force and torque is discussed. Based on the von Mises yield criterion and the assumption of isotropic linear hardening, the methods of stress path and strain path loading are analyzed to study the effect of combined tensile-torsional loading path on thin-walled circular tubes. A finite element model is used to analyze the loading path effect on thin-walled circular tubes. A series of tensile and torsional tests are also carried out on 304 stainless steel thin-walled circular tubes using a universal testing machine. In addition, the consistency of the selected material with the von Mises yield criterion, the assumption of isotropic linear hardening, and other classical elastoplastic mechanics are verified. The theoretical calculation results, the numerical analysis results, and the experimental test results are analyzed and compared. The “primary effect” influenced by the stress path and the “recency effect” affected by the strain path are proved, and their application prospects are discussed. The influence of tensile-torsional loading path on the final stress and strain states of thin-walled circular tubes after entering the plastic deformation stage is concretely demonstrated, facilitating the understanding of the principles of the aforementioned two effects. The investigation for a general principle concerning the effect of loading history on the mechanical behavior of engineering materials, based on the classical plastic mechanics, has an important theoretical significance. It is of great theoretical importance for advancements in plastic yield theory and the establishment of more accurate loading conditions suitable for specific materials in engineering practice.

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Section: Introductionmentioning

confidence: 99%

The Effect of Combined Tensile‐Torsional Loading Path on the Stress/Strain States of Thin‐Walled Circular Tubes

Gao

Shao

et al. 2020

Advances in Civil Engineering

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“…The crack tip opening displacement (CTOD) and the J-integral require additionally lower restriction on the fracture mechanics tests as the stress intensity factor approach [1]. The cyclic CTOD can be used for characterization of a crack growth under large scale and general yielding condition under cyclic loading [2] but that approach is limited to fracture Mode I; for Mode II (or Mixed Mode) are currently investigated approaches like crack face displacement [3]. The J-integral does not characterize the real crack driving force for a crack in an elastic-plastic material behaviour even for proportional cyclic loading [2], [4].…”

Section: Introductionmentioning

confidence: 99%

Selection of the Crack Driving Force Concept in Con Text of Linear-Elastic and Elastic- Plastic Fracture Mechanics

Kráčalík¹

2018

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Fracture mechanics is a continuum mechanics approach to describe cracks in materials. There are plenty of fracture mechanics concepts such as linear elastic fracture mechanics (LEFM), elastic-plastic fracture mechanics (E-PFM), dynamic, the time-dependent fracture mechanics that are limited to specific loading conditions, crack geometry (length) and material behaviour. Current paper evaluates applicability of a crack driving force in context of LEFM and E-PFM for arbitrary (quasi-static) loading and yielding conditions to help engineers choose appropriate fracture mechanics concept for their applications.

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A Study on the Fracture Behavior of CFRP Specimen with Bonding Interface under Mode 1 Fatigue Load according to Laminate Angle

Hwang

Kim

Cho

2018

Int. J. Precis. Eng. Manuf.

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A numerical investigation of elastoplastic deformation of cracks in tubular specimens subjected to combined torsional and axial loading

Cited by 6 publications

References 24 publications

The Effect of Combined Tensile‐Torsional Loading Path on the Stress/Strain States of Thin‐Walled Circular Tubes

The Effect of Combined Tensile‐Torsional Loading Path on the Stress/Strain States of Thin‐Walled Circular Tubes

Selection of the Crack Driving Force Concept in Con Text of Linear-Elastic and Elastic- Plastic Fracture Mechanics

A Study on the Fracture Behavior of CFRP Specimen with Bonding Interface under Mode 1 Fatigue Load according to Laminate Angle

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