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Showing 1 to 20 of 274 for “"biaxial"”.
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Nonproportional biaxial fatigue of welded joints
The proportional and nonproportional high-cycle fatigue behavior of mild-steel, tube-to-plate welded specimens was studied. In-phase bending and torsion, constant-amplitude fatigue tests were used to define the weldment baseline material properties and also to serve as a comparison with …
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A study of biaxial viscoelastic behavior
… for a creep test of a lead plate, subjected to biaxial tension. The stress-strain law that was selected is given by S<sub>ij</sub> = B σ²/σt² e<sub>ij</sub> + c σ/σt e<sub>ij</sub> to cover ehear effects and by σ<sub>ii</sub> = κε<sub>ii</sub> for hydrostatic tension or compression. …
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Fatigue limit analysis involving biaxial stress components
Biaxial stress fatigue data is carefully examined in order to determine how much foundation exists for a rational approach to classical stress-based fatigue limit analysis involving biaxial stress components. A review is given of the methods presently in vogue, and new methods are suggested for …
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biaxial alignment in sputter deposited thin films
… a preferential in-plane orientation are called biaxially aligned. In this work, a magnetron is used to deposit such biaxially aligned and to investigate the underlying mechanism. Understanding the biaxial alignment mechanism, at first compels to understand the development of a preferential …
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Behavior of concrete under biaxial cyclic compression
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1982.
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MATERIAL PROPERTIES OF AORTA FROM BIAXIAL OSCILLATORY TESTS
… relationship of aorta in dynamic oscillatory biaxial loading. A setup was developed that supplied pressure loading from the physiological to sub-failure levels (between 7 and 76 kPa) to porcine aorta at frequencies ranging from 0.50Hz to 5.00Hz. Samples tested were constrained at both ends …
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Biaxial Mechanical Evaluation of Uterosacral and Cardinal Ligaments
… comparison of histological and planar equi-biaxial mechanical properties of the swine and human USLs was completed. Relative collagen, smooth muscle, and elastin contents were quantified from histological sections and the USL was found to have similar components in both species, with a …
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The development of a modified biaxial composite test specimen
… around holes of different diameter under biaxial load. Results were interpreted with the aid of Finite Element Analyses.'
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Fatigue Damage and Small Crack Growth During Biaxial Loading
The progressive nature of fatigue damage under biaxial loading has been investigated. Experiments were performed on thin-wall tubular specimens of 1045 steel in tension, torsion, and combined tension-torsion loading. Two equivalent strain amplitudes, one in the high cycle fatigue (HCF) region and …
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The linear elastic biaxial response of plain-woven meshes
… response of plain-weave meshes under biaxial tension and bending. In-plane force-deflection relations are derived through examining a representative element of the mesh. The analysis includes the contributions of tension, bending, and transverse shear to the complementary energy.
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Wrinkling behaviour of biaxial non-crimp fabrics during preforming
… severity and variability of wrinkling for a ±45° biaxial NCF during preforming, considering four contrasting benchmark geometries. Secondly, a large dataset of forming simulations for various tool geometries is generated and used to investigate the effect of geometry on wrinkling severity, and to …
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Modeling of the in-Plane Biaxial Residual Stresses From Machining
In addition, novel experimentation has been conducted to demonstrate the effects of machining-induced residual stress on part warpage. The experimentation indicates the strong influence of machining-induced residual stresses on component geometry. Finite element solution techniques are utilized to …
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Combined tensile-compressive biaxial loading of Li-ion battery components
Lithium-ion batteries under a mechanical load can develop failures in the internal multi-layer structure. Due to the flammable materials required for construction, the safety of the battery has been in question since it was first developed. Internal failures can create a short circuit which may …
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Biaxial Response of Individual Bonds in Thermomechanically Bonded Nonwoven Fabrics
… formed by melted and fused fibers. Through equi-biaxial tensile testing and simultaneous image capture, the mechanical response of individual bonds was studied through loading in the preferential fiber direction, the machine direction, and in the direction that is perpendicular, the cross …
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Anisotropy of Passive and Active Rat Vagina under Biaxial Loading
… behavior of the vagina, we performed planar biaxial tests of vaginal specimens in both the passive (relaxed) and active (contracted) states. Specimens were isolated from virgin, female Long-Evans rats (n=16) and simultaneously stretched along the longitudinal direction (LD) and …
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A Biaxial Magneto-optical Kerr Magnetometer for Studying Magnetic Thin Films
I have designed and built a biaxial magneto-optical Kerr magnetometer to study thin magnetic films. The design enables researchers to measure perpendicular and in-plane hysteresis curves of ultra thin films down to a thickness of 9 A. The optical components are fastened to a vibration isolation …
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Tearing of Vaginal Tissue under Biaxial Loading: Implications for Women's Health
… swine and rat vaginal tissue is subjected to biaxial loads until tearing to reveal its mechanical properties. The resulting large inhomogeneous deformations are measured by the digital image correlation optical method to calculate material strain. The influence of these strains near to and far …
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Response of high strength concrete columns under fire-induced biaxial bending
… columns, under fire conditions, can experience biaxial bending which can arise due to eccentricity in loading, uneven spalling, or due to significant thermal gradients generated through 1-, 2-, or 3-sides of fire exposure. High strength concrete (HSC) columns are especially prone to such biaxial …
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