Evaluation of residual stress in pre-stressed concrete material by digital image processing photoelastic coating and hole drilling method

Chang, Che-Way; Chen, Ping Huang; Lien, Hung Sheng

doi:10.1016/j.measurement.2008.10.004

Cited by 34 publications

(12 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the beginning of the current century, Cardenas-Garcia [20] presented a least squares, inverse problem analysis for the determination of residual stresses from fringe patterns in the hole drilling-photoelastic coating method using the Kirsch solution. More recently, Chang et al [21] applied the method to determine uniaxial compressive stresses in a concrete specimen, using the Kirsch solution and digital image processing of isochromatic fringe data. In spite of developments over the past four decades, application of the method appears to be sporadic.…”

Section: Photoelastic Coatingsmentioning

confidence: 99%

Residual Stress Determination by Hole Drilling Combined with Optical Methods

Nelson

2010

Exp Mech

View full text Add to dashboard Cite

An overview is provided of the use of eight different optical methods with hole drilling to determine residual stresses. The methods considered are: brittle and photoelastic coatings, Moire interferometry, holographic interferometry, electronic speckle pattern interferometry, interferometric strain rosette, digital image correlation and shearography. A number of applications are summarized, such as the use of hole drilling with holographic interferometry to investigate stresses in rock structures accessed by deep boreholes and to determine manufacturing-induced residual stresses in fillets of small radii.

show abstract

Section: Photoelastic Coatingsmentioning

confidence: 99%

Residual Stress Determination by Hole Drilling Combined with Optical Methods

Nelson

2010

Exp Mech

View full text Add to dashboard Cite

show abstract

“…In the lifespan of concrete structures, stress attenuation, concrete creep, construction deviation, and uneven support settlement create transient stress variations [4]; hence, the theoretical calculation of the stress within a structure is always much different from the actual stress. e evaluation of actual stress is tedious and difficult [3,5,7]. Many scholars have conducted a substantial number of studies in this field.…”

Section: Introductionmentioning

confidence: 99%

Research on In Situ Stress Measurements in Reinforced Concrete Beams Based on the Core‐Drilling Method

Deng

Tang

2020

Advances in Civil Engineering

View full text Add to dashboard Cite

To increase the accuracy of the core-drilling method in measuring the in situ stresses within concrete beams, this paper developed a special core-drilling machine system, studied the surface stress release rule of concrete beams through finite element simulations, and then carried out verification tests. The effects of the borehole diameter, drilling depth, strain sensor size, and borehole position on the measurement accuracy were studied. The results showed that borehole diameters of 100 mm, 75 mm, and 50 mm can achieve stress release and that the smaller the borehole diameter was, the easier it was to release the stress. When using the smallest borehole, the stress concentration range around the borehole was narrow, and there was little damage to the original structure. The strain gauge size influenced the actual measurement results. An excessively large strain gauge will be disturbed by drilling because of the limited size of the borehole. An excessively small strain gauge will be easily influenced by the inhomogeneity and randomness of the concrete materials, resulting in large measurement error. The difference between the measured concrete stress and the theoretical value was less than 10%, and the average error was only 6.03%, indicating the feasibility of the proposed method.

show abstract

“…Both mechanisms have important effect on material's usage. Stress in different transparency materials can be determined by photo-elastic method [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of environmental atmosphere and stress-loading storage on the intrinsic stress and its distribution in polycarbonate screw cap

Yang¹,

Liu²,

Li³

et al. 2015

Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015

View full text Add to dashboard Cite

The polycarbonate screw cap part had cracking problem during storage, which mechanism needed to be studied. The effect of environmental atmosphere and stress-loading storage on the intrinsic stress and its distribution in polycarbonate screw cap part was investigated in the paper. The analytical results indicated that the intrinsic stress in polycarbonate screw cap had a tendency to decrease slightly or to keep unchanged during room temperature-low humidity (40%RH) storage and room temperature-middle humidity (55-65%RH) storage for 315 days, while had a tendency to decrease obviously during 315 days of high temperature-high humidity (47˚C+90%RH) storage. After 300 days of stress-loading storage, the intrinsic stress in polycarbonate screw cap part also decreased obviously, and it might belong to stress relaxation. The distribution of intrinsic stress in polycarbonate screw cap part basically kept unchanged during environmental atmosphere storage and stress-loading storage.

show abstract

Evaluation of residual stress in pre-stressed concrete material by digital image processing photoelastic coating and hole drilling method

Cited by 34 publications

References 11 publications

Residual Stress Determination by Hole Drilling Combined with Optical Methods

Residual Stress Determination by Hole Drilling Combined with Optical Methods

Research on In Situ Stress Measurements in Reinforced Concrete Beams Based on the Core‐Drilling Method

Effect of environmental atmosphere and stress-loading storage on the intrinsic stress and its distribution in polycarbonate screw cap

Contact Info

Product

Resources

About