Results 21 to 30 of about 131,286 (267)

FRACTURE ENERGY OF ILLITIC RAMMED EARTH WITH HIGH WATER-CLAY RATIO

open access: yesActa Polytechnica CTU Proceedings, 2021
The article is focused on design of mixture of rammed earth, producing, testing and determination of fracture energy of unfired rammed earth and its stress-strain curve in tensile bending test.
Barbora Mužíková   +2 more
doaj   +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

Concept of Integrity, Reliability and Safety of Energy and Transport Systems for Cold Climate Regions [PDF]

open access: yesE3S Web of Conferences, 2020
The concepts of providing the integrity, reliability and safety of the energy and transport systems in the Arctic zone are considered. The inadmissibility of using the concept of acceptable, or tolerable, risk to ensure the operational safety of ...
Lepov Valeriy V.   +4 more
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

On Some Problems in Determining Tensile Parameters of Concrete Model from Size Effect Tests

open access: yesPolish Maritime Research, 2019
The paper presents results of numerical simulations of size effect phenomenon in concrete specimens. The behaviour of in-plane geometrically similar notched and unnotched beams under three-point bending is investigated.
Marzec Ireneusz, Bobiński Jerzy
doaj   +1 more source

Coniform-shape tool for splitting of wooden logs

open access: yesResearch in Agricultural Engineering, 2015
The article deals with design of a coniform tool with rotary motion for splitting of logs. The tool is proposed using a fracture mechanics theory. The approach of energy balance during crack growth in a split wood log is applied for construction design ...
F. Bodnár, M. Minárik
doaj   +1 more source

Mechanical Properties of Concrete with Steel and Polypropylene Fibres at Elevated Temperatures

open access: yesFibers, 2019
Addition of steel fibres to concrete is known to have a significant positive influence on the mechanical properties of concrete. Micro polypropylene (PP) fibres are added to concrete to improve its performance under thermal loads such as in case of fire ...
Josipa Bošnjak   +2 more
doaj   +1 more source

Using fracture energy to characterize the hot mix asphalt cracking resistance based on the directtensile test

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
Cracking is currently one of the most common distresses in hot mix asphalt (HMA) pavements, often costing the highway agencies million of dollars in maintenance and rehabilitation activities.
Lubinda F. Walubita   +2 more
doaj   +1 more source

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

Influence of biochar additions on the fracture behavior of foamed concrete

open access: yesFracture and Structural Integrity, 2020
The present study concerns the experimental investigation of foamed concretes with 1600 kg/m3 density that incorporate biochar additions in the mix.
Devid Falliano   +7 more
doaj   +1 more source

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