Experimental Mechanics
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Reproducibility and reliability of the response from four SPATE systems
Experimental Mechanics - Tập 37 - Trang 440-444 - 1997
The SPATE (stress pattern analysis by thermal emissions) system is currently the standard equipment for thermoelastic stress analysis (TSA). A carefully designed test program that studied the behavior of four independent SPATE systems over an 8-month period is described. The response of each system is compared with the response of the other systems in the study.
Investigation of the Effects of Environmental Fatigue on the Mechanical Properties of GFRP Composite Constituents Using NanoindentationAbstract
Background
Fatigue failure criteria for fibre reinforced polymer composites used in the design of marine structures are based on the micromechanical behaviour (e.g. stiffness properties) of their constituents. In the literature, there is a lack of information regarding the stiffness degrada... ...
Experimental Mechanics - Tập 62 Số 4 - Trang 585-602 - 2022
Axial compression buckling of conical and cylindrical shells
Experimental Mechanics - Tập 27 - Trang 255-261 - 1987
Experiments on the axial compression buckling of high-quality epoxy cylindrical shells with imposed dimpletype defects are described. Additionally, a technique for the manufacture of high-quality epoxy conical shells which buckle at loads approaching the classical critical load is presented. For both types of shells, prebuckling deformations have been monitored optically. The sizes of defects dete......
Flexure testing of plastics
Experimental Mechanics - Tập 4 - Trang 185-190 - 1964
Formulas for reducing flexural-test data have been derived on the basis of nonlinear, large-deformation theory and solved by numerical methods. Based on the nonlinear solution, correction factors have been derived that may be applied to the results of standard linear data-reduction techniques to yield more accurate results than were heretofore possible.
Laser-induced stress wave thermometry applied to silicon wafer processing: Modeling and experimentation
Experimental Mechanics - Tập 45 - Trang 3-8 - 2005
We present a methodology correlating the group velocity of guided plate waves to temperature in anisotropic silicon substrate. The model is developed through numerical solution and manipulation of the dispersion relations, while elastic constants and plate thickness are treated as functions of temperature. Analytical results demonstrate that adequate thermal resolution is provided by both the lowe......
Thermographic detection of adhesive-bond and interlaminar flaws in composites
Experimental Mechanics - Tập 21 - Trang 276-280 - 1981
This paper reports the development of a liquid-crystal passive thermographic technique for the detection of adhesive-bond-line and interlaminar flaws in composite materials. The technique was successfully used for the detection of flaws in three composite systems: E-glass/epoxy, graphite/epoxy and HMC. Thermographic results are compared to ultrasonic C-scan results to assess the relative effective......
Separation of the isochromatics-isopachics patterns by use of retarders in holographic photoelasticity
Experimental Mechanics - Tập 16 - Trang 146-150 - 1976
By double passing the object beam in photoelastic-holographic interferometry, separation of the isochromatic-isopachic patterns can be achieved. The object beam must then interact with a suitable polarizing element between the first and second pass. This problem is analyzed using Jones' matrices. This analysis shows that, apart from active and passive rotators, half-wave and quarter-wave retarders......
Interlaminar-shear-strain measurements in cord-rubber composites
Experimental Mechanics - Tập 18 - Trang 457-463 - 1978
The present work is an experimental study using an X-ray technique to measure directly the internal distribution of interlaminar-shear deformations which occur during uniaxial extension of two-ply, cord-rubber, angle-ply laminates—both balanced and unbalanced. Significant interlaminar-shear strains were developed between the two generally orthotropic layers of one-inch-wide specimens, which decrea......
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