Results 31 to 40 of about 455,767 (302)

Ubiquitiformal fracture energy

open access: yesJournal of Theoretical and Applied Mechanics, 2017
The ubiquitiformal fracture energy is proposed in the paper and its explicit expression is obtained. Moreover, the numerical results for concrete are found to be in good agreement with those for the critical strain energy release rate. The discrepancy between the numerical results of the traditional fracture energy and the critical strain energy ...
Zhuo-Cheng Ou   +4 more
openaire   +2 more sources

Interfacial fracture toughness of composite concrete beams [PDF]

open access: yes, 2019
A test for measuring the interfacial fracture toughness of a bi-material interface, essentially for concrete overlaid pavements was developed. The measured interfacial fracture toughness of steel fibre-reinforced, roller-compacted, polymer modified ...
Karadelis, John N., Lin, Yougui
core   +1 more source

Comparative experimental study of the mechanical and fracture properties of Portland limestone and Corsehill sandstone

open access: yesFracture and Structural Integrity, 2019
An experimental investigation of the mechanical and fracture characteristics of Portland limestone and Corsehill sandstone is undertaken, aiming at enhancing understanding of the structural behaviour of these natural building stones commonly used in both
Aikaterini Marinelli, Matthew R. Stewart
doaj   +1 more source

Moisture damage evaluation using energy based responses

open access: yesJournal of Civil Engineering and Management, 2017
Monotonic Indirect Tensile tests were performed on asphalt concrete mixtures made of two different types of aggregates. Since the environmental condition is a determining factor in propagation of moisture damage, the effects of temperature and aging were
Amir Mehrara, Ali Khodaii
doaj   +1 more source

Effectiveness of Hybrid Fibers on the Fracture and Shear Behavior of Prestressed Concrete Beams

open access: yesFibers, 2022
This study investigates the effectiveness of hybrid fibers (steel and macro-synthetic) on the shear behavior of prestressed concrete beams. The hybrid fiber combination was selected to avoid workability issues at high volume dosages and ensure effective ...
Chandrashekhar Lakavath   +3 more
doaj   +1 more source

Vibrated concrete vs. self-compacting concrete: comparison of fracture mechanics properties [PDF]

open access: yes, 2014
This study focuses on the fracture mechanics aspect of self-compacting concrete, compared to vibrated concrete. The most commonly used experiments to investigate the toughness and cracking behaviour of concrete are the three-point bending test (3PBT) on ...
Boel, Veerle   +3 more
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Influence of impact velocities of hammer crusher on crushing effect and utilization efficiency of fracture energy in green sandstone

open access: yesMeitan kexue jishu
The impact velocities of hammer crusher directly affect the crushing effect of rock. In order to study influence of impact velocities of hammer head on the crushing effect and utilization efficiency of fracture energy in green sandstone, macroscopic and ...
Huanshuai ZHAO   +6 more
doaj   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer   +3 more
wiley   +1 more source

Viscoelastic Fracture of Biological Composites

open access: yes, 2011
Soft constituent materials endow biological composites, such as bone, dentin and nacre, with viscoelastic properties that may play an important role in their remarkable fracture resistance.
Bouchbinder, Eran, Brener, Efim A.
core   +1 more source

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