Results 1 to 10 of about 5,362 (117)

Research on durability of underground lining structures using damage theory [PDF]

open access: yesScientific Reports
Damage and fracture theories have been widely applied to reinforced concrete structures. However, their application to the investigation of the durability of underground structures is still very limited.
Hongke Pan, Xiaosan Yin
doaj   +2 more sources

Dynamic crack mechanism model place in the designing of the buildings [PDF]

open access: yesMATEC Web of Conferences, 2021
The materials that we use always have some defects. Under static, cycling or dynamic load the materials as a function of the crack size and load environment can initiate a fracture. The crack mechanism depends on several factors, like material properties,
Nyikes Zoltán, Kovács Tünde Anna
doaj   +1 more source

Microstructural design strategy to maintain the brittle fracture toughness of hard-soft dual phase steel after cyclic plastic strain

open access: yesMaterials & Design, 2021
Superstructures are seriously damaged because of plastic deformation when natural disasters, such as large earthquakes or unexpectedly large waves, occur.
Hiroaki Kosuge   +2 more
doaj   +1 more source

Prediction Method for the Ground Vibration Damage Boundary of Thick and Hard Rock Layer Fracture Type Mine Quakes

open access: yesGeofluids, 2022
In this study, based on the example of the ground vibration damage response of a thick and hard rock layer fracture type mine quake, and by applying the theories of mine pressure, rock mechanics and vibration energy principle, the concept of “vibration ...
Ming Zhang   +4 more
doaj   +1 more source

Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model [PDF]

open access: yesFracture and Structural Integrity, 2015
Structural components made of fibre-reinforced materials are frequently used in engineering applications. Fibre-reinforced composites are multiphase materials, and complex mechanical phenomena take place at limit conditions but also during normal service
Roberto Brighenti   +2 more
doaj   +2 more sources

Automatic Identification of Critical Damage Value with In-situ Shearing Test and Notched Plate Tensile Test with Image Analysis [PDF]

open access: yesMATEC Web of Conferences
Critical damage values in Cockcroft and Latham's and Ayada's models are automatically identified using autonomous-driven finite element analysis (ADFEA). To validate fracture behavior, we perform in-situ shearing and tensile tests on notched steel plates,
Yoshida Yoshinori, Kutsukake Asuka
doaj   +1 more source

On the lumped damage modelling of reinforced concrete beams and arches

open access: yesFracture and Structural Integrity, 2020
The analysis of reinforced concrete structures can be performed by means of experiments or numerical studies. The first way is usually quite expensive, so the second one sometimes is a good option to understand the physical behaviour of actual structures.
Thalyson Issac de Jesus Brito   +4 more
doaj   +3 more sources

Fracture as a material sink

open access: yesMaterials Theory, 2017
Cracks are created by massive breakage of molecular or atomic bonds. The latter, in its turn, leads to the highly localized loss of material, which is the reason why even closed cracks are visible by a naked eye.
K. Y. Volokh
doaj   +1 more source

Energy Evolution and Damage Mechanism of Fractured Sandstone with Different Angles

open access: yesEnergies, 2022
To explore the influence of crack angle on the mechanical properties, energy evolution, and damage evolution of sandstone, uniaxial loading tests were conducted on sandstones with different crack angles.
Xinwei Li   +3 more
doaj   +1 more source

Ways of application of the provisions of mechanics of bodies with cracks to the calculation of asphalt concrete on strength and plasticity

open access: yesMATEC Web of Conferences, 2018
The report discusses the principles of two major theories of fracture mechanics of bodies with cracks, which include the theory of accumulation of damage Kachanov–Rabotnov and theory of brittle fracture Griffith–Irwin, including the invariant integral ...
Aleksandrov Anatoly   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy