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Title of Journal: Exp Mech

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Abbravation: Experimental Mechanics

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Springer US

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DOI

10.1016/0012-1606(68)90091-2

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1741-2765

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Analysis of Cracks and Deformations in a Full Scal

Authors: J F Destrebecq E Toussaint E Ferrier
Publish Date: 2010/08/28
Volume: 51, Issue: 6, Pages: 879-890
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Abstract

This paper deals with the use of a digital image correlation technique for the determination of the actual mechanical behaviour of a full scale reinforced concrete beam after 25 years of service in a severe industrial environment The objective is to investigate the influence of the service conditions on the cracking process and the flexural behaviour of the beam For this purpose one beam is removed from the existing structure before being tested in four point bending in laboratory Displacement fields derived from digital images captured during five loading cycles are analysed in terms of crack detection and measurement beam deflection and curvature Owing to its good resolution the method proves suitable for early crack detection and measurement A comparison between experimental results and theoretical values derived from Eurocode 2 design code in the serviceability state suggests the existence of a longitudinal compressive force in the beam A complementary analysis confirms the validity of this hypothesis It is concluded that the cracking and the flexural behaviour of the tested beam are significantly affected by the existence of an initial compressive stress which is possibly resulting from a swelling of the concrete due to long term exposure to wet atmosphere and elevated temperature


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Other Papers In This Journal:

  1. Internal Deformation Measurement of Polymer Bonded Sugar in Compression by Digital Volume Correlation of In - situ Tomography
  2. Dynamic Separation of Resistance Spot Welded Joints: Part II—Analysis of Test Results and a Model
  3. Hydrodynamic Interactions at Low Reynolds Number
  4. Impact of Experimental Uncertainties on the Identification of Mechanical Material Properties using DIC
  5. New Developments in Proton Radiography at the Los Alamos Neutron Science Center (LANSCE)
  6. A Tensile Split Hopkinson Bar for Testing Particulate Polymer Composites Under Elevated Rates of Loading
  7. Mechanical Properties of Ti-6Al-4V Selectively Laser Melted Parts with Body-Centred-Cubic Lattices of Varying cell size
  8. Hybrid Thermoelastic Stress Analysis of a Pinned Joint
  9. Experimental Testing of a Moving Force Identification Bridge Weigh-in-Motion Algorithm
  10. Sensitivity to Axial Stress of Electro-Mechanical Impedance Measurements
  11. Accuracy of the Sampling Moiré Method and its Application to Deflection Measurements of Large-Scale Structures
  12. Modification of the Shear-Compression Specimen for Large Strain Testing
  13. Slip Damping Mechanism in Welded Structures Using Response Surface Methodology
  14. Effect of Varying Test Parameters on Elastic–plastic Properties Extracted by Nanoindentation Tests
  15. Application of Digital Image Correlation (DIC) in Dynamic Notched Semi-Circular Bend (NSCB) Tests
  16. Experimental Methodology for Studying Strain Heterogeneity with Microstructural Data from High Temperature Deformation
  17. Tailoring Beam Mechanics Towards Enhancing Detection of Hazardous Biological Species
  18. Strain Measurements Through Optimized Particle Tracking in Volumetric Images: Methodology and Error Assessment
  19. Comparison between Digital Fresnel Holography and Digital Image-Plane Holography: The Role of the Imaging Aperture
  20. Principle and Experimental Validation of a new Apparatus Allowing Large Deformation in Pure Bending: Application to thin Wire
  21. Dynamic Separation of Resistance Spot Welded Joints: Part I—Experiments
  22. Non-Newtonian Behavior of Ballistic Gelatin at High Shear Rates
  23. Designing a Uniaxial Tension/Compression Test for Springback Analysis in High-Strength Steel Sheets
  24. A Hybrid Wavelet Based–Approach and Genetic Algorithm to Detect Damage in Beam-Like Structures without Baseline Data

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