Results 81 to 90 of about 150,616 (300)

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Temporary brittle bone disease:association with intracranial bleeding [PDF]

, 2013
We report 20 infants aged between 1 month and 6 months found to have subdural bleeding and also multiple unexplained fractures in a pattern similar to that described earlier as temporary brittle bone disease. Child abuse seemed unlikely as a cause of the
Ayoub, Ayoub, Bacopoulou, Bacopoulou, Barzegar, Barzegar, Caffey, Caffey, Dabezies, Dabezies, Evensen, Evensen, Fenton, Fenton, Gabaeff, Gabaeff, Galaznik, Galaznik, Garcia, Garcia, Geddes, Geddes, Gilman, Gilman, Gomez, Gomez, Graziani, Graziani, Gupta, Gupta, Hegedüs, Hegedüs, Jackson, Jackson, Jenny, Jenny, Keller, Keller, Kidd, Kidd, Kosmetatos, Kosmetatos, Lucas, Lucas, McLean, McLean, Mena, Mena, Mendelson, Mendelson, Miller, Miller, Muller, Muller, Nassogne, Nassogne, Ozdemir, Ozdemir, Parmar, Parmar, Paterson, Paterson, Paterson, Paterson, Paterson, Paterson, Paterson, Paterson, Paterson, Paterson, Paterson, Paterson, Pontz, Pontz, Rooks, Rooks, Rorke, Rorke, Saarinen, Saarinen, Sasaki, Sasaki, Sayre, Sayre, Shearer, Shearer, Sillence, Sillence, Sohda, Sohda, Squier, Squier, Stanley, Stanley, Targher, Targher, Terling, Terling, Uscinski, Uscinski, Visser, Visser, Wei, Wei, Weir, Weir   +105 more
core   +3 more sources

Cohesive Dynamics and Brittle Fracture [PDF]

Journal of Elasticity, 2015
We formulate a nonlocal cohesive model for calculating the deformation state inside a cracking body. In this model a more complete set of physical properties including elastic and softening behavior are assigned to each point in the medium. We work within the small deformation setting and use the peridynamic formulation.
openaire   +3 more sources

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

Fracture surface microstructure and new fracture mechanism in the pearlite structure

Journal of Materials Research and Technology
The fracture behaviours of pearlite structures in several typical carbon steels were investigated by scanning electron microscopy (SEM). Microstructural analysis indicated that the fracture of pearlite is a mixed ductile-brittle fracture, and brittle ...
Kai Zhai, Yujing Zhang, Jialong Yue, Yong Qiu, Xinru Zhou, Ke Zhao, Xiaomei Yu, Jinyou Zheng, Songjie Li, Dehai Ping   +9 more
doaj   +1 more source

Elastic Instability behind Brittle Fracture

Physical Review Letters
We argue that nucleation of brittle cracks in initially flawless soft elastic solids is preceded by a nonlinear elastic instability, which cannot be captured without accounting for geometrical precise description of finite elastic deformation. As a prototypical problem we consider a homogeneous elastic body subjected to tension and assume that it is ...
Riccobelli, D., Ciarletta, P., Vitale, G., Maurini, C., Truskinovsky, L.   +4 more
openaire   +6 more sources

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

Advanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi, Stephan Roth, Christos G. Aneziris, Bjoern Kiefer   +3 more
wiley   +1 more source

Preparation of magnesium-aluminum microlaminated composites: evaluation of process applicability and system properties

Journal of Materials Research and Technology
To overcome the limitations of traditional single-variable experiments, this study employs response surface methodology (RSM) with Box-Behnken design (BBD) to optimize key vacuum hot-pressing process parameters (plate thickness, holding time) for Mg/Al ...
Qian Guo, Xingguo Zhang, Bin Ya, Bingwen Zhou, Linggang Meng, Shuya Zhang   +5 more
doaj   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Fracture performance of high strength steels, aluminium and magnesium alloys during plastic deformation

MATEC Web of Conferences, 2015
A series of uniaxial tension tests were performed for 5052 and 6061 aluminum alloys, AZ31B magnesium alloy, TRIP600 and DP600 steels, to obtain a better understanding of their fracture performance.
Yu Haiyan, Wang You
doaj   +1 more source