Experimental measurement of the crack tip strain field in a single ...

In partial agreement with earlier analytical and numerical solutions, the results of this experiment show that the deformation fields near a crack tip are ...

Displacement fields at the free surface near the crack tip are mapped with moiré fringe patterns. Both effective strain and maximum shear strain within a small ...

Experimental measurement of crack tip strain field in a single crystal

Crack tip deformation fields in an aluminum single crystal are quantitatively obtained by applying three-dimensional moire interferometry technique.

Chapter: Experimental measurement of crack tip strain field in a ...

Get details about the chapter of Experimental measurement of crack tip strain field in a single crystal from book Large Plastic Deformations: Fundamental ...

Crack Tip Fields in a Single Edge Notched Aluminum Single Crystal ...

The experiments are complemented by performing 3D and 2D plane strain finite element simulations within a continuum crystal plasticity framework assuming an ...

(a) Experimental setup; (b) y-strain field around the crack tip...

(a) Experimental setup; (b) y-strain field around the crack tip obtained by the digital image correlation (DIC) for a 10-42-42 test configuration. ... Figure 1.

CRACK TIP GROWTH MEASUREMENT USING DIGITAL IMAGE ...

... strain field continuously evolves over the experiment as the crack tip ... Typically the strain is calculated from an area consisting of 15 × 15 individual.

Conditions near a crack tip: Advanced experiments for dislocation ...

While DIC yields the total strain during deformation, only through an accurate measurement of the local elastic strain the individual strain or ...

Three-dimensional crack tip deformation

Attempts to experimentally study displacement and strain fields around crack tips in ... recent years as an effective means of measuring displacement and strain ...

3D Measurement of the Strain Field Surrounding Crack Tip

However for the simulations of nonlinear systems, it is still necessary to have experimental information's. Unfortunately, the feedback based on strain ...

Dynamic full field measurements of crack tip temperatures - Caltech

... experiment and the yield stress is only one-half of that of C300 steel. Hence, crack tip plastic zone length scale is approximately. 36 times bigger in the ...

Author's personal copy Investigation of fatigue crack closure using ...

DIC measured v-displacement field near the crack tip for macroscale images (high K experiment). Rigid motion has been subtracted from these plots for ...

Some experimental observations of crack-tip mechanics with ...

[20] introduced a post-processing method for measuring the crack length, crack tip position and stress intensity factors automatically from displacement field.

(PDF) Experimental measurement of the J-integral - Academia.edu

The actually present deformation field in the vicinity of the crack tip can be obtained which directly reflects for example crack closure effects or plasticity.

Quantitative Interpretation of Crack Tip Strain Field Measurements ...

Recent years have witnessed greatly improved availability of experimental measurements of two-and three-dimensional strain and stress distributions, ...

Experimental Measurement of Elastic-Plastic Fracture Parameters ...

In this work precise experimental measurement of strain and stress fields in the vicinity of a crack allows an evaluation of the J-integral directly from its ...

Strain localization at the crack tip in single crystal CT specimens ...

In particular, the evidence of kink banding near the crack tip is provided, confirmed by EBSD orientation mapping. The measured values of local lattice rotation ...

Experimental investigation of near crack tip - ProQuest

Using a novel, noncontacting experimental method, the values for creep fracture parameters C(t) and C* have been experimentally quantified from full field, ...

On Crack-Tip Stress State: An Experimental Evaluation of Three ...

Abstract-The extent of the region of three-dimensionality of the crack-tip stress field is in- ... mental measurements made in the vicinity of the crack tip, have ...

Strain Field Around Individual Dislocations Controls Failure - Gammer

In any case, the strain field is influenced by the existing dislocations and remains restricted behind the crack tip. After the load drop, ...