Results 21 to 30 of about 141,844 (301)

An alternative 3D model for damage induced anisotropy and unilateral effect in microcracked materials [PDF]

open access: yes, 2003
A three-dimensional model of damage by microcrack growth is proposed to account for the mechanical behavior of quasi brittle materials (especially for concrete and rocks). The emphasis is put on the induced anisotropy and on the elastic moduli dependence
Cormery, Fabrice, Welemane, Hélène
core   +4 more sources

A brittle star-like robot capable of immediately adapting to unexpected physical damage [PDF]

open access: yesRoyal Society Open Science, 2017
A major challenge in robotic design is enabling robots to immediately adapt to unexpected physical damage. However, conventional robots require considerable time (more than several tens of seconds) for adaptation because the process entails high ...
Takeshi Kano   +5 more
doaj   +1 more source

Understanding fast macroscale fracture from microcrack post mortem patterns [PDF]

open access: yes, 2011
Dynamic crack propagation drives catastrophic solid failures. In many amorphous brittle materials, sufficiently fast crack growth involves small-scale, high-frequency microcracking damage localized near the crack tip.
Buehler   +11 more
core   +5 more sources

Rain erosion damage in brittle materials

open access: yesEngineering Fracture Mechanics, 1983
Abstract In order to understand the processes involved in the high-velocity rain erosion of brittle materials the impact damage produced in soda-lime-silica glass by single and multiple jet impact was studied. The damage was quantified by measuring the post-impact strength of specimens.
Van der Zwaag, S. (author)   +1 more
openaire   +3 more sources

Constitutive modeling of damageable brittle and quasi-brittle materials

open access: yesInternational Journal of Solids and Structures, 2017
Abstract The objective of this paper is to develop a constitutive model for damageable brittle and quasi-brittle materials. A damage model, which can handle damage anisotropy, distinct tensile and compressive damage behavior, and damage deactivation simultaneously, is developed.
Liang Zhang, Wenbin Yu
openaire   +1 more source

Study of Damage Constitutive Model of Brittle Rocks considering Stress Dropping Characteristics

open access: yesAdvances in Civil Engineering, 2020
Deep brittle rock exhibits characteristics of rapid stress dropping rate and large stress dropping degree after peak failure. To simulate the whole process of deformation and failure of the deep brittle rock under load, the Lemaitre strain equivalent ...
Fei Li   +3 more
doaj   +1 more source

Review on Research and Development of Abrasive Scratching of Hard Brittle Materials and Its Underlying Mechanisms

open access: yesCrystals, 2023
Hard brittle materials such as ceramics and crystals are commonly utilized in various industries, including information technology, mechanical engineering, and semiconductors.
Huina Qian   +6 more
doaj   +1 more source

A recursive-faulting model of distributed damage in confined brittle materials [PDF]

open access: yes, 2006
We develop a model of distributed damage in brittle materials deforming in triaxial compression based on the explicit construction of special microstructures obtained by recursive faulting.
Conti, S., Ortiz, M., Pandolfi, A.
core   +2 more sources

Implementation of the Quasi-Brittle Damage Model for 2024 Aluminum Alloy under Periodic Loading [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2019
Damage mechanics is one of the most important parts of mechanical engineering that determines the time life for different mechanical elements. The most various models that have been provided so far in damage mechanics, are related to ductile or brittle ...
Sadegh Ghorbanhosseini, saeed yaghoubi
doaj  

A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites

open access: yesEngineering Science and Technology, an International Journal, 2020
Widely reported damage modelling methods inherently use elastic brittle rapidly decaying responses for materials under both uniaxial tension and compression, in spite of the existence of ample experimental evidences that the damaging process under ...
Ali Jelvehpour   +2 more
doaj   +1 more source

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