Observation of plastic deformation wave in a tensile-loaded aluminum-alloy

Yoshida, S.; Siahaan, B.; Pardede, Marincan; Sijabat, N.; Simangunsong, H.; Simbolon, Tua Raja; Kusnowo, A.

doi:10.1016/s0375-9601(98)00852-4

Cited by 32 publications

(32 citation statements)

References 5 publications

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“…A number of optical interferometric experiments have been carried out to study the field theoretical approach [10,17,19,20]. In particular, the stage 1 and stage 2 criteria have been experimentally investigated under various conditions.…”

Section: Methodsmentioning

confidence: 99%

“…However, since the longitudinal effect does not exert elastic force, the displacement field stops showing longitudinal wave characteristics. Instead, the ∇ ×   terms exert transverse (shear) recovery force, and consequently, the displacement field starts to shows transverse wave characteristics [16,17]. This transition can be observed as curved contours in the interferometric image patterns (fringe patterns).…”

Section: Stage 1 Criterionmentioning

confidence: 99%

See 1 more Smart Citation

A Brief Overview of a Scale Independent Deformation Theory and Application to Diagnosis of Deformational Status of Solid-State Materials

Yoshida

2012

Journal of the Korean Society for Nondestructive Testing

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A field theoretical approach to deformation and fracture of solid-state material is outlined, and its application to diagnosis of deformational status of metal specimens is discussed. Being based on a fundamental physical principle known as local symmetry, this approach is intrinsically scale independent, and capable of describing all stages of deformation on the same theoretical foundation. This capability enables us to derive criteria that can be used to diagnose transitions from the elastic to plastic regime, and the plastic to fracturing regime. For practical applications of these criteria, an optical interferometric technique known as electronic speckle-pattern interferometry is proved to be quite powerful; it is able to visualize the criteria as a whole image of the object on a real-time basis without numerical processing. It is demonstrated that this method is able to reveal loading hysteresis as well.

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Section: Methodsmentioning

confidence: 99%

Section: Stage 1 Criterionmentioning

confidence: 99%

A Brief Overview of a Scale Independent Deformation Theory and Application to Diagnosis of Deformational Status of Solid-State Materials

Yoshida

2012

Journal of the Korean Society for Nondestructive Testing

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“…With the application of the Lagrangian formalism to the gauge field, this leads to the following Maxwell type field equations [6]. The general solution to this field equation is a decaying transverse wave [7] of the translational and rotational displacement: ,…”

Section: Physical Mesomechanics and Field Equationmentioning

confidence: 99%

Physical mesomechanical criteria of plastic deformation and fracture

Yoshida¹,

Rourks²,

Mita³

et al. 2009

Physical Mesomechanics

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“…In [13] we observed displacement waves in the displacement component perpendicular to the tensile axis (called the u-wave). We observed that the u-wave initially travelled along the tensile axis and became stationary before the sample failed, in consistence with the standing wave pre-fracture criterion.…”

Section: Observation 7: Db Drift Velocity Is Similar To the Phase Velmentioning

confidence: 99%

Field theoretical interpretation on dynamics of plastic deformation - Portevin-Le Chatelie effect and propagation of shear band

Yoshida

Toyooka

2001

J. Phys.: Condens. Matter

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The shear band and associated stress relaxation classically known as the Portevin-Le Chatelie effect is considered based on physical mesomechanics, a recent field theory on plastic deformation and fracture. Using the mathematical analogy to the Maxwell's electromagnetic theory, the field theoretical meanings of various properties of plastic deformation are considered. For more intuitive understanding, a simple, two-dimensional spring-mass model is introduced. Along these considerations, interpretations are given to various experimental observations, in which the shear band is detected as an optical interferometric band structure. The results of this investigation are consistent with our previous identification of the optical band structure as a current associated with symmetry.

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Observation of plastic deformation wave in a tensile-loaded aluminum-alloy

Cited by 32 publications

References 5 publications

A Brief Overview of a Scale Independent Deformation Theory and Application to Diagnosis of Deformational Status of Solid-State Materials

A Brief Overview of a Scale Independent Deformation Theory and Application to Diagnosis of Deformational Status of Solid-State Materials

Physical mesomechanical criteria of plastic deformation and fracture

Field theoretical interpretation on dynamics of plastic deformation - Portevin-Le Chatelie effect and propagation of shear band

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