Results 111 to 120 of about 6,236,215 (252)

A study of the stress wave factor technique for evaluation of composite materials [PDF]

The acousto-ultrasonic approach for nondestructive evaluation provides a measurement procedure for quantifying the integrated effect of globally distributed damage characteristic of fiber reinforced composite materials.
Duke, J. C., Jr., Grosskopf, P. P., Henneke, E. G., II, Kiernan, M. T.   +3 more
core   +1 more source

Damage characterization of embedded defects in composites using a hybrid thermography, computational, and artificial neural networks approach. [PDF]

Heliyon, 2022
Al-Athel KS, Alhasan MM, Alomari AS, Arif AFM.   +3 more
europepmc   +1 more source

A Model-Based, Bayesian Solution for Characterization of Complex Damage Scenarios in Aerospace Composite Structures [PDF]

Ultrasonic damage detection and characterization is commonly used in nondestructive evaluation (NDE) of aerospace composite components. In recent years there has been an increased development of guided wave based methods. In real materials and structures,
Dick, A., Dobson, J., Harvey, G., Leckey, Cara A. C., Reed, H.   +4 more
core   +1 more source

A Freezing-Thawing Damage Characterization Method for Highway Subgrade in Seasonally Frozen Regions Based on Thermal-Hydraulic-Mechanical Coupling Model. [PDF]

Sensors (Basel), 2021
Deng Q, Liu X, Zeng C, He X, Chen F, Zhang S.   +5 more
europepmc   +1 more source

Residual strength and damage characterization of repaired glass/epoxy composite laminates using A.E. and D.I.C

, 2016
In this paper, the effect of introducing different phases of fibre reinforcement in epoxy matrix at the dressed site in adhesively bonded external patch repair for damaged glass/epoxy composites under in-plane compressive loads was investigated.
J. Andrew, V. Arumugam, D. Bull, H. Dhakal   +3 more
semanticscholar   +1 more source

Observations of MMOD Impact Damage to the ISS [PDF]

This paper describes meteoroid and orbital debris (MMOD) damage observations on the International Space Station (ISS). Several hundred MMOD damage sites on ISS have been documented using imagery taken from ISS windows.
Christiansen, Eric L., Hyde, James L., Lear, Dana M.   +2 more
core   +1 more source

Ductile damage evolution law for proportional and non-proportional loading conditions

Fracture and Structural Integrity, 2018
The characterization of ductile damage evolution, and its description, have been the object of extensive research in the continuum damage mechanic field.
Riccardo Fincato, Seiichiro Tsutsumi, Hideto Momii   +2 more
doaj  

Airborne ultrasounds for damaged cementitious characterization

, 2019
[EN] The scope of this paper is to demonstrate the capability of airborne non-contact ultrasound (ANC-US) to assess thermal damage on normalized Portland cement mortar specimens. For this purpose, contact ultrasound (C-US) and ANC-US are compared. A normalized dosage mortar was carried out to obtain standardized mortar specimens of 4 x 4 x 16 cm. Then,
Gosálbez Castillo, Jorge|||0000-0001-6520-9014, CARRIÓN GARCÍA, ALICIA|||0000-0002-0630-6065, Gallardo, C., Vázquez, S.|||0000-0002-5148-1815, Genovés, V., Paya Bernabeu, Jorge Juan|||0000-0001-7425-5311   +5 more
openaire   +3 more sources

A differential CDM model for fatigue of unidirectional metal matrix composites [PDF]

A multiaxial, isothermal, continuum damage mechanics (CDM) model for fatigue of a unidirectional metal matrix composite volume element is presented. The model is phenomenological, stress based, and assumes a single scalar internal damage variable, the ...
Arnold, S. M., Kruch, S.
core   +1 more source

In Situ Ultrasonic Characterization of Hydrogen Damage Evolution in X80 Pipeline Steel

Materials
A nondestructive evaluation of the hydrogen damage of materials in a hydrogen environment is important for monitoring the running conditions of various pieces of equipment.
Bing Chen, Feifei Qiu, Li Xia, Lintao Xu, Junjun Jin, G. Gou   +5 more
semanticscholar   +1 more source