Jin, Kai Zhou, Jing Zuo, Qisheng Song, Jiuzhou Zhang, Yani Chang, Guobing Chen, Guohong Li, Bichun
Published in
Animals : an open access journal from MDPI
Chicken (Gallus gallus) pluripotent embryonic stem cells (ESCs) and primordial germ cells (PGCs) can be broadly applied in the research of developmental and embryonic biology, but the difference between amphoteric ESCs and PGCs is still elusive. This study determined the sex of collected samples by identifying specific sex markers via polymerase ch...
sadananda, kuntimaddi adlakha, ilaksh solanki, kiran n. vasudevan, a.k.
Crack growth kinetics in crystalline materials is examined both from the point of continuum mechanics and discrete dislocation dynamics. Kinetics ranging from the Griffith crack to continuous elastic-plastic cracks are analyzed. Initiation and propagation of incipient cracks require very high stresses and appropriate stress gradients. These can be ...
Li, Xueyu Cui, Kunpeng Sun, Tao Lin Meng, Lingpu Yu, Chengtao Li, Liangbin Creton, Costantino Kurokawa, Takayuki Gong, Jian Ping
Published in
Proceedings of the National Academy of Sciences of the United States of America
Load-bearing biological tissues, such as muscles, are highly fatigue-resistant, but how the exquisite hierarchical structures of biological tissues contribute to their excellent fatigue resistance is not well understood. In this work, we study antifatigue properties of soft materials with hierarchical structures using polyampholyte hydrogels (PA ge...
Kelly, Marion Branch Maity, Tapabrata Nazmus Sakib, A. R. Frear, D. R. Chawla, Nikhilesh
Published in
Journal of Electronic Materials
Solder joints can experience fatigue cracking at the interface between the solder and substrate during thermal cycling due to the difference in thermal expansion between joined components. In order to strengthen the interfacial region and prevent cracking, two Cu pad surface treatments were studied on Sn-3Ag-0.5Cu solder, and on matte Sn plate and ...
Kachit, M Verdu, Catherine
The cracking behavior of ferritic nodular cast iron subjected to multiaxial non-proportional cyclic loading was studied. Crack length increased logarithmically during cycling, with a slop (in µm/cycle) as high as the phase-shift angle (δ) was closing to 90°. A non-symmetrical behavior in terms of fatigue life and crack growth relative to δ = 90 was...
Wang, Benjin De Backer, Hans Zhou, Xiao-Yi Chen, Airong
One of the key issues on orthotropic steel deck (OSD) is the reduction of serviceability due to fatigue cracks even though the bridge still keeps a certain level of robustness itself, and accurately simulating crack growth process becomes crucial to evaluate the fatigue performance of OSDs. This paper proposes to measure the fatigue damage based on...
Resende Pereira, Kyvia de Fatima V. Vanegas-Useche, Libardo Abdel Wahab, Magd
Fretting fatigue is a type of failure that may affect various mechanical components, such as bolted or dovetail joints, press-fitted shafts, couplings, and ropes. Due to its importance, many researchers have carried out experimental tests and analytical and numerical modelling, so that the phenomena that govern the failure process can be understood...
Sadek, Mohamed
Mechanical fatigue failure occurs in components subjected to cyclic loading. A crack initiates at critical regions in the component and propagates during repeated loading. The expected fatigue life depends on the level, type and frequency of the loading. Generally, as implied by the Wohler’s SN curve, higher applied cyclic load leads to lower fatig...
Alderliesten, R.C. (author)
With the introduction of fibre metal laminates (FMLs) as a (fatigue) damage tolerant material concept in aeronautics, an interesting field emerged where fatigue damage interaction plays a dominant role. The hybrid concept effectively demands evaluating fatigue damage growth based on fracture phenomena typical for both metals and fibre-reinforced co...
Nguyen, Yen T. Pence, Thomas J. Wichman, Indrek S.
Published in
Proceedings. Mathematical, Physical, and Engineering Sciences
As solids pyrolyse during combustion, they lose chemical and structural integrity by gradually degrading into residual char and forming defects such as voids, fissures and cracks. The material degradation process, which is coupled to the crack formation process, is described using a theoretical model and is numerically simulated using the finite-el...
