Results 191 to 200 of about 6,236,215 (252)

Micromechanics characterization of sublaminate damage

International Journal of Fracture, 1990
A micromechanics analytical model is developed for characterizing the fracture behaviour of a fibre reinforced composite laminate containing a transverse matrix crack and longitudinal debonding along 0/90 interface. Both the matrix and the fibres are considered as linear elastic.
L. R. Dharani, H. Tang
openaire   +1 more source

Microstructural characterization of fretting damage

Wear, 1993
Abstract A fretting rig has been built which can be operated in a well-controlled, oil-free atmosphere. Nickel has been used as a model material, and surface analytical and microscopic techniques, including transmission electron microscopy, were used to characterize the damage.
R.-M. Lundh, Z. Lai, H. Norden
openaire   +1 more source

Damage characterization and numerical simulation of shear experiment of plain woven glass-fiber reinforced composites based on 3D geometric reconstruction

, 2020
The investigation on the effect of defects on the mechanical properties of composites is vital to explain the failure mechanism of materials. A computer tomography (CT) scanning in-situ shear test is designed to obtain u-CT images of plain weave glass ...
Qingliang Zeng, Lijuan Sun, J. Ge, Wenwang Wu, Jun Liang, D. Fang   +5 more
semanticscholar   +1 more source

Dynamic Characterization and Damage Identification

2011
This chapter presents selected cases of modal parameter evaluation and damage identification, privileging the applied aspects. The identification of modal parameters is discussed through three experimental cases of masonry structures: a civil building, a monumental structure and a nineteenth century railway bridge.
VESTRONI, Fabrizio, PAU, Annamaria
openaire   +2 more sources

Characterization of Topside Mechanical Damage

Volume 2: Pipeline Integrity Management, 2014
Mechanical damage, such as gouge, is the damage to the pipe surface caused by external forces and is usually caused by third-party damage during construction and excavation. This normally results in a highly deformed, work hardened surface layer with possible metal removal. In many cases, dents are coincident with gouges.
Rick Yahua Wang, Richard Kania, Udayasankar Arumugam, Ming Gao   +3 more
openaire   +1 more source

Residual strength model and cumulative damage characterization of asphalt mixture subjected to repeated loading

, 2020
Fatigue failure of asphalt mixture can be ascribed to the degradation of residual strength caused by fatigue loading. Describing the strength degradation helps to better understand the fatigue damage accumulation of asphalt mixture.
Zeyu Zhang, M. Oeser
semanticscholar   +1 more source

Damage characterization by vibration test

Scripta Metallurgica et Materialia, 1994
For load-bearing structural materials, damage is a generic term for the deterioration process that weakens the strength and integrity of materials. It may refer to macrocracks or to the deterioration process that precedes the formation of a dominant macrocrack, such as void nucleation and growth during creep, and plastic deformation or microcrack ...
J.L. Ding, J. Pazhouh, S.B. Lin, T.D. Burton   +3 more
openaire   +1 more source

Development and focusing enhancement of nonlinear air-coupled acoustic technique for damage characterization in materials

, 2020
In recent years, a number of studies within the field of structural health monitoring have focused on micro-damage location in materials. These non-invasive methods are widely used for damage characterization in materials employed in aerospace and ...
M. Boccaccio, G. Fierro, M. Meo, G. Bolton   +3 more
semanticscholar   +1 more source

Damage characterization in composite materials using acoustic emission signal-based and parameter-based data

, 2019
Damage propagation in DCB specimens is characterized by Acoustic Emission (AE) Technique. Signal-based AE data is used to relate the Mechanical Property of the Material with the Acoustic Activity; Sentry function is used to relate the Strain Energy and ...
C. Barile, C. Casavola, G. Pappalettera, P. K. Vimalathithan   +3 more
semanticscholar   +1 more source

Damage Characterization and Damage Percolation Modelling in Aluminum Alloy Sheet

SAE Technical Paper Series, 2000
<div class="htmlview paragraph">Tessellation methods have been applied to characterize second phase particle fields and the degree of clustering present in AA 5754 and 5182 automotive sheet alloys. A model of damage development within these materials has been developed using a damage percolation approach based on measured particle distributions ...
M. J. Worswick, A. K. Pilkey, D. Lloyd, S. Court   +3 more
openaire   +1 more source