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Keywords: Fatigue
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Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2011, 133(11): 111010.
Published Online: November 17, 2011
...WonHee Kim; Brian M. Barnes; Jonathan E. Luntz; Diann E. Brei The high energy density actuation potential of shape memory alloy (SMA) wire is tempered by conservative design guidelines set to mitigate complex factors such as functional fatigue (shakedown). In addition to stroke loss, shakedown...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. September 2011, 133(9): 094503.
Published Online: September 9, 2011
... with respect to its solder joints failure, is evaluated using its thermomechanical response, in association with a low cycle fatigue model. The simulation of an aeronautic typical Accelerated Thermal Cycling (ATC) test configuration allows checking in a first step, the relevancy of the numerical procedure...
Journal Articles
Article Type: Research Papers
J. Mech. Des. March 2011, 133(3): 031006.
Published Online: March 1, 2011
... of computations necessary. In RBDO, the surrogate models need to be most accurate in the proximity of the most probable point. Thus, for multiply constrained problems, such as fatigue design problems, where each finite element (FE)-model node constitutes a constraint, the computational effort may still...
Journal Articles
Article Type: Research Papers
J. Mech. Des. July 2009, 131(7): 071002.
Published Online: May 27, 2009
... adversely affect the positioning accuracy and fatigue life of the drive. In this paper, the lateral dynamics of the screw is explicitly incorporated into the hybrid finite element model of ball screw drives. The ball screw is modeled by Timoshenko beam elements, and the balls, joints, bearings...
Journal Articles
Article Type: Research Papers
J. Mech. Des. May 2009, 131(5): 051011.
Published Online: April 15, 2009
...K. Sunil Kumar; Rajiv Tiwari; P. V. V. N. Prasad The long fatigue life is the one of the most important criterion for the design of rolling bearings, however, due to complex and diverse internal geometries, each type of rolling bearings require a different design formulation. To increase the life...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. June 2008, 130(6): 064501.
Published Online: April 16, 2008
... transmissions, there are only a few examples of linear cable transmissions in the literature. The reason is that the up-to-date designs are based on a cable layout that leads to cable length changes during movement. This, in turn, produces negative effects such as transmission nonlinearity and cable fatigue...
Topics: Cables
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. December 2007, 129(12): 1303–1310.
Published Online: February 13, 2007
...A. R. Rao; J. P. Scanlan; A. J. Keane Aerospace design optimization typically explores the effects of structural performance and aerodynamics on the geometry of a component. This paper presents a methodology to incorporate manufacturing cost and fatigue life models within an integrated system...
Journal Articles
Article Type: Research Papers
J. Mech. Des. March 2007, 129(3): 275–282.
Published Online: March 21, 2006
... can be tested. In the automotive applications, mechanical components subjected to cyclic loading have to be designed against fatigue. Boot seals are used to protect velocity joint and steering mechanisms in automobiles. These flexible components must accommodate the motions associated with angulation...
Journal Articles
Article Type: Research Papers
J. Mech. Des. July 2006, 128(4): 919–927.
Published Online: December 22, 2005
... of a structural part with respect to the fatigue reliability. First, the dynamic load history is decomposed into the average value and amplitude, which are modeled as random variables. Second, through fatigue analysis and uncertainty propagation, the reliability is calculated. Last, based on the implicit function...
Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2006, 128(6): 1328–1336.
Published Online: December 19, 2005
.... The reduction in fastener tension translates into a partial—yet permanent—loss of the clamping load, which may lead to joint leakage, loosening, or fatigue failure. A nonlinear strain hardening model is implemented in order to describe the fastener behavior past the proportional limit of its material...
Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2006, 128(6): 1337–1342.
Published Online: December 16, 2005
...Sriman Venkatesan; Gary L. Kinzel Bolt-nut connectors play an important role in the safety and reliability of structural systems. Stress concentration due to unequal load distribution can cause fatigue failure in bolt-nut connectors. In this paper, the stress distribution in bolt-nut connectors...
Journal Articles
Article Type: Book Reviews
J. Mech. Des. December 2003, 125(4): 854.
Published Online: January 22, 2004
...Jack A. Collins,, Author; David B. Dooner,, Reviewer University of Puerto Rico. 22 01 2004 reviews fracture fatigue Mechanical Design of Machine Elements and Machines: A Failure Prevention Perspective by Jack A. Collins, John Wiley & Sons, 2003 This new...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2002, 124(3): 558–563.
Published Online: August 6, 2002
...Bin Li; Manuel de Freitas This paper presents a fast evaluation procedure for high-cycle fatigue (HCF) under multiaxial random loading. The recent multiaxial cycle counting method of Wang and Brown is used to identify the loading reversals. For each identified reversal, the effective shear stress...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2002, 124(3): 393–398.
Published Online: August 6, 2002
...-deflection characteristics in graphic and table formats and can generate a dimensioned drawing. To enable the designer to work in the same environment, the software has been provided with a user-friendly interface for fatigue calculation along with the characteristics of parallel/series assemblies...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. June 2002, 124(2): 320–329.
Published Online: May 16, 2002
..., the first threads engaged bear more than half of the axial load induced by the make-up torque. This overload in correspondence with the first threads engaged, together with the steep stress gradient induced by the notch effect at the thread root, is the cause of dramatic fatigue failures. Moreover...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. September 2001, 123(3): 431–435.
Published Online: May 1, 2000
...Avinash Singh It has long been recognized that the fatigue life of a component can be divided into a crack initiation phase and a crack propagation phase, but researchers have typically ignored one phase or the other in their analytical models. Even in the stress-life method of life prediction...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. March 2000, 122(1): 143–146.
Published Online: March 1, 2000
... of ductile metals loaded in fatigue with positive mean and alternating stresses. However, all of these diagrams are either conservative, or have domains containing stress greater than yield strength of material. This paper presents the Clemson diagram, which has the same format as the aforementioned diagrams...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. March 2000, 122(1): 83–90.
Published Online: January 1, 2000
... to the conventional model in two degrees of freedom is first presented. A practical application of this formulation is illustrated through the common problem of sizing a two bearings-shaft arrangement. Variations of displacements, axial forces, and bearing fatigue life related to preload are shown to be easily...