Results 91 to 100 of about 8,481 (226)

Digital Image Correlation for Elastic Strain Evaluation during Focused Ion Beam Ring-Core Milling

open access: yesJournal of Manufacturing and Materials Processing
This paper details the utilization of the focused ion beam digital image correlation (FIB-DIC) technique for measuring in-plane displacements and the employment of the height digital image correlation (hDIC) technique as a two-step DIC method for ...
Fatih Uzun, Alexander M. Korsunsky
doaj   +1 more source

Importance of Exposure Time on Digital Image Correlation (DIC) at Extreme Temperatures [PDF]

open access: yes, 2018
Extreme temperatures have increasingly played an important role in engineering applications, including leading edges during hypersonic flight, spacecraft re-entry, and propulsion systems. In order to design for such thermo-mechanical conditions, materials must be characterized using suitable measurement methods. DIC is a popular and versatile method in
openaire   +2 more sources

Mechanical, Thermal, and Microstructural Evaluation of Bio‐Based Polyurethane Composites Reinforced With Woven Jute and Flax

open access: yesPolymer Composites, EarlyView.
Graphical overview of the manufacturing and characterization of bio‐based polyurethane composites reinforced with woven jute and flax fibers produced by the VARTM process. Mechanical, thermal, and microstructural analyses reveal differences in stiffness, thermal stability, and interfacial behavior between the natural fiber composites.
Vanessa A. Santos   +3 more
wiley   +1 more source

Comparing the In‐Plane Shear Behavior of Glass Fiber‐Reinforced and Carbon Fiber‐Reinforced Polymer Laminates With the Same Epoxy Matrix System in ±45° Tensile Tests

open access: yesPolymer Composites, EarlyView.
Schematic illustration of ±45° tensile testing, including detection of first‐ply failure (FPF) by optical crack detection and acoustic emission monitoring, comparison of FPF values with ASTM D3518 and D3039 criteria, and resulting ply level stress states at FPF for GF‐ and CF‐epoxy laminates.
Maria Gfrerrer   +4 more
wiley   +1 more source

Mode I Fracture Toughness and Compressive Properties of Glass Fibre Reinforced Acrylic Matrix Composites Before and After Seawater Ageing

open access: yesPolymer Composites, EarlyView.
Mode I Fracture Toughness Test of Dry and Seawater Aged Glass Fibre/Acrylic Matrix Composites. ABSTRACT Acrylic thermoplastic composites are emerging as a promising alternative for tidal and offshore wind turbine blades and marine applications, offering comparable structural performance and manufacturing process with improved end‐of‐life recyclability ...
Nagappa Siddgonde   +3 more
wiley   +1 more source

Evaluation of Fiber‐Matrix Debonding in Glass, Carbon, and Hybrid Fiber Composites Under Transverse Loading by Full‐Field Measurements

open access: yesPolymer Composites, EarlyView.
An experimental multiscale approach to investigate how fiber spacing, orientation, and material hybridization influence fiber‐matrix debonding and transverse cracking. ABSTRACT This study aims to experimentally quantify fiber‐matrix debonding and transverse crack evolution in single‐fiber and double‐fiber composite specimens, with particular emphasis ...
Zaynab Hazaveh, Behrad Koohbor
wiley   +1 more source

Prediction of In‐Plane Shear Mechanical Properties Through Degree of Bonding Characterization as a Function of Automated Fiber Placement Processing Parameters for Carbon Fiber/PEKK Composite Laminates

open access: yesPolymer Composites, EarlyView.
Graphical abstract demonstrating manufacturing process and property characterization used in process modelling of interlaminar behavior across the range of process parameters. ABSTRACT Automated Fiber Placement (AFP) of fiber‐reinforced thermoplastic tapes enables rapid manufacturing by leveraging precise robotic lamination and in situ consolidation ...
Abd‐Elrahman Korayem   +6 more
wiley   +1 more source

Embedding Fiber Segment Interferometry for Localization of Defects in Composite Structures

open access: yesPolymer Composites, EarlyView.
Graphical representation of composite structures with embedded fiber optic sensors for structural health monitoring, enabling strain measurement and damage localization under mechanical loading. ABSTRACT In the area of structural health monitoring (SHM), embedding strain sensors into smart composites is a key strategy for detecting failures arising ...
Shiva Mohammadkarimi   +3 more
wiley   +1 more source

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo   +37 more
wiley   +1 more source

Improvement of crack tip position estimation in DIC images by image processing methods

open access: yesFracture and Structural Integrity, 2022
The study presents and compares an application of two procedures to identify the crack tip location in PVC Sent samples under a uniaxial tensile test based on the image processing method.
Najat Zekriti   +6 more
doaj  

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