...Jingda Tang; Xi Chen; Libo Men; Zhengjin Wang Hydrogel-based biomedical applications are under rapid development. These applications usually demand hydrogels to have high toughness and high fatigue threshold. Recently, various fiber-reinforced composite hydrogels have been developed to meet...

...Zahra S. Hosseini; Mohsen Dadfarnia; Akihide Nagao; Masanobu Kubota; Brian P. Somerday; Robert O. Ritchie; Petros Sofronis Hydrogen-accelerated fatigue crack growth is a most severe manifestation of hydrogen embrittlement. A mechanistic and predictive model is still lacking partly due to the lack...

...Yifan Zhou; Wenlei Zhang; Jian Hu; Jingda Tang; Chenyu Jin; Zhigang Suo; Tongqing Lu Stiffness and fatigue threshold are important material parameters in load-carrying applications. However, it is impossible to achieve both high stiffness and high threshold for single-network elastomers and single...

...Y. Bazilevs; A. Korobenko; X. Deng; J. Yan This work presents a collection of advanced computational methods, and their coupling, that enable prediction of fatigue-damage evolution in full-scale composite blades of wind turbines operating at realistic wind and rotor speeds. The numerical...

...Daniel Paquet; Jacques Lanteigne; Marie Bernard A new experimental method for the incorporation of residual stresses (RS) in standard fatigue steels specimens was developed. RS were introduced by means of high frequency (360 kHz) induction heating. Surface tensile RS resulted from cooling down...

... in the vicinity of the inner edge of the disk, where this stress is important for improving fatigue performance of structures. Hill , R. , 1950 , The Mathematical Theory of Plasticity , Clarendon , Oxford . Hsu , Y. C. , and Forman , R. G. , 1975 , “ Elastic-Plastic Analysis...

... constants. Verification is provided by detailed finite element analyses. Contact loads can be calculated for an entire mission history in near real-time. The contact load histories could be used to calculate local stress necessary for fatigue life prediction. The first step is to analyze the effect...

...Jehuda Tirosh; Sharon Peles The intention of this study is to predict the fatigue-safe long life behavior of elastoplastic porous materials subjected to zero-tension fluctuating load. It is assumed that the materials contain a dilute amount of voids (less than 5%) and obey Gurson’s model of plastic...

...Jehuda Tirosh The goal of this work was to quantify the improvement in the fatigue limit of solid structures which have undergone shot peening (SP) by small rigid particles. The work was based on Melan’s shakedown theorem for estimating the allowable safe stress amplitude (in a lower bound sense...

...Ilya I. Kudish The paper is devoted to formulation and analysis of a new model of structural fatigue that is a direct extension of the model of contact fatigue developed by Kudish (2000, STLE Tribol. Trans., 43, pp. 711–721 ). The model is different from other published models of structural fatigue...

... is a significant source of fretting fatigue (Chateauminois and Briscoe ( 4 ) and Briscoe et al. ( 5 )) and also because the dissipation of such motion is often a source of vibration damping or of whirl in rotational machinery, it is important to obtain better approximate models of this process. Deresiewicz ( 2...

...R. D. Blevins Fatigue is produced by the sum of randomly phased sine waves. Fatigue damage during this non-Gaussian, finite random process is a function of the noise bandwidth, the fatigue slope, mean stress, and the rms stress. Methods are developed for predicting the cycles to failure. Comparison...

...S. Wen, Mem. ASME; L. M. Keer, Life Fellow ASME A fatigue theory with its failure criterion based on physical damage mechanisms is presented for solders. The theory applies Mura’s micromechanical fatigue model to individual grains of the solder structure. By introducing grain orientation (Schmid...

...B. Yang; S. Mall, Fellow ASME, By using the crack analogue model of rigid flat-ended contact, crack initiation in fretting fatigue is analyzed. The coefficient of friction at the edge of contact, which characterizes the asymptotic stress field, is considered as the primary controlling parameter...

... known as the shear band in metals under a monotonic loading. Based on the prior analyses of fatigue bands in polycrystals, a micromechanic analysis of a single crystal under plane deformation is developed. The Bauschinger effect and hysteresis loops of these single crystals were calculated and shown...