Results 41 to 50 of about 141,844 (301)

Rupture by damage accumulation in rocks [PDF]

, 2006
The deformation of rocks is associated with microcracks nucleation and propagation, i.e. damage. The accumulation of damage and its spatial localization lead to the creation of a macroscale discontinuity, so-called "fault" in geological terms, and to the
A Buchel, A Guarino, A Johansen, A Lin, AM Boullier, B Gutenberg, B Menendez, B Velde, C Marone, C Nicholson, C Scavia, CA Tang, CA Tang, CAJ Wibberley, CG Bufe, CG Sammis, CH Scholz, CH Scholz, D Amitrano, D Place, D Sornette, DA Lockner, DA Lockner, DA Lockner, David Amitrano, DE Moore, E Bouchaud, E Bouchaud, EM Schulson, F Kun, GCP King, H Nechad, HL Li, IG Main, J Biarez, J Kemeny, J Mori, J Rice, J Schmittbuhl, J Schmittbuhl, J Weiss, J Weiss, JC Jaeger, JVA Keller, JW Rudnicki, K Chen, K Mair, K Michibayashi, K Mogi, LS Costin, M Gerstenberger, P Cowie, P Grassberger, RL Kranz, RP Young, S Zapperi, S Zapperi, SC Jaume, SJD Cox, SR Brown, T Hirata, W Wang, YC Wang, Z Olami, Z Reches   +64 more
core   +4 more sources

Experimental study of the brittle–ductile transition in hot cutting of SG iron specimens [PDF]

, 2013
http://www.sciencedirect.com/science/article/pii/S0924013612002579The present paper investigates the brittle-ductile transition (BDT) of the primary shear zone during cutting of spheroidal graphite (SG) iron in the austenitization temperature range ...
EL MANSORI, Mohamed, FOUILLAND-PAILLE, Laurence   +1 more
core   +6 more sources

Damage accumulation of bovine bone under variable amplitude loads

Bone Reports, 2016
Stress fractures, a painful injury, are caused by excessive fatigue in bone. This study on damage accumulation in bone sought to determine if the Palmgren-Miner rule (PMR), a well-known linear damage accumulation hypothesis, is predictive of fatigue ...
Abbey M. Campbell, Michelle L. Cler, Carolyn P. Skurla, Joseph J. Kuehl   +3 more
doaj   +1 more source

Damage and dissipation mechanisms in the dynamic fracture of brittle materials: Velocity driven transition from nominally brittle to quasi-brittle

EPJ Web of Conferences, 2010
We present the results of recent dynamic fracture experiments [Scheibert et al., Phys. Rev. Lett. 104 (2010) 045501] on polymethylmethacrylate, the archetype of nominally brittle materials, over a wide range of crack velocities.
Bonamy D., Dalmas D., Scheibert J., Guerra C.   +3 more
doaj   +1 more source

Sub-surface damage issues for effective fabrication of large optics [PDF]

, 2008
A new ultra precision large optics grinding machine, BoX®has been developed at Cranfield University. BoX®islocated at the UK's Ultra Precision Surfaces laboratory at the OpTIC Technium.
, , A. Baldwin, D. Walker, G. Yu, P. Morantz, P. Shore, R. Evans, X. Tonnellier   +8 more
core   +1 more source

A robust numerical framework for the analysis of material failure of fibre reinforced soft tissue [PDF]

, 2011
In this work, robustness and stability of continuum damage models applied to material failure in soft tissues are addressed. In the implicit damage models equipped with softening, the presence of negative eigenvalues in the tangent ...
Blanco Ibáñez, Sergio, Goicolea Ruigómez, José María, Polindara López, Cesar Andrés   +2 more
core   +4 more sources

Pore space and brittle damage evolution in concrete [PDF]

Engineering Fracture Mechanics, 2013
AbstractA novel lattice model is proposed for linking experimentally measured porosity of concrete to damage evolution and the emergent macroscopic behaviour. Pore sizes are resolved by X-ray CT and distributed at lattice bonds. The mechanical behaviour of bonds is elastic-brittle with failure criterion dependent on local forces and pore sizes.
Jivkov, Andrey P., Engelberg, Dirk L., Stein, Robert, Petkovski, Mihail   +3 more
openaire   +2 more sources

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Scaling Laws of Stress and Strain in Brittle Fracture

, 2005
A numerical realization of an elastic beam lattice is used to obtain scaling exponents relevant to the extent of damage within the controlled, catastrophic and total regimes of mode-I brittle fracture.
A. Hansen, B. Skjetne, Herrmann H. J., Hestenes M. R., Roark R. J., Roux S., T. Helle   +6 more
core   +1 more source

Strength and strain quantities under brittle compression process of hard rocks [PDF]

, 2018
Purpose. To examine the relationships between strength properties and strain quantities associated with the brittle compression process of hard brittle rocks. Methods.
Adesida, P, Akinbinu, V, Oniyide, G
core   +1 more source