The measurement of Young’s modulus of thin films using secondary laser speckle patterns

Molaei, Sama

doi:10.1016/j.measurement.2016.05.094

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…Elongation at break (%El) represented the percentage change in length due to pulling apart, experienced by the film just before breakage. To get the idea of film flexibility, Young' modulus was also calculated as the slope of the initial straight‐line portion of the stress–strain diagram …”

Section: Methodssupporting

confidence: 91%

Self‐supporting‐film from starch, poly(vinyl alcohol), and glutaraldehyde: Optimization of composition using response surface methodology

Sen

Das

2016

J of Applied Polymer Sci

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Use of starch based biodegradable packaging film can partially reduce the landfilling problem from non-biodegradable petroleum based alternatives. The aim of this work was to optimize raw material blend composition containing corn-starch (CS), and low amount of poly(vinylalcohol) (PVA) and glutaraldehyde (GA) to produce self-supporting-film (SSF), using response surface methodology. Rotatable central composite design was used to evaluate the effect of CS (6.25-7.50), PVA (0.00-1.25), and GA (0.00-1.25), in g/100 mL of the blend, on tensile strength (TS), percent elongation (%El), and water vapor permeability (WVP) of the film. The most significant (p < 0.01/0.05) factors were: CS and GA for TS, CS and PVA for El, and PVA for WVP. The SSFs were thin, flexible and transparent; the optimum composition (g/100 mL) to maximize TS and El, and minimize WVP was 7.50 (CS), 0.875 (PVA), and 0.125 (GA), which produced SSF showing TS: 11.66 MPa, %El: 8.56, and WVP: 0.13 g mm/m 2 /kPa/h. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44436.

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Section: Methodssupporting

confidence: 91%

Self‐supporting‐film from starch, poly(vinyl alcohol), and glutaraldehyde: Optimization of composition using response surface methodology

Sen

Das

2016

J of Applied Polymer Sci

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“…Light scattering refers to the process where an electromagnetic (EM) wave (e.g., an incident light wave) encounters an obstacle (e.g., a particle), and the light photon redirects into a new trajectory. Generally, photon light can deviate from any heterogeneity in the medium that has been illuminated by incident light [ 22 , 51 ].…”

Section: Optical Particle Counter Principlementioning

confidence: 99%

Review of the Newly Developed, Mobile Optical Sensors for Real-Time Measurement of the Atmospheric Particulate Matter Concentration

Molaie

Lino

2021

Micromachines

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Due to the adverse effects on human health and the environment, air quality monitoring, specifically particulate matter (PM), has received increased attention over the last decades. Most of the research and policy actions have been focused on decreasing PM pollution and the development of air monitoring technologies, resulting in a decline of total ambient PM concentrations. For these reasons, there is a continually increasing interest in mobile, low-cost, and real-time PM detection instruments in both indoor and outdoor environments. However, to the best of the authors’ knowledge, there is no recent literature review on the development of newly designed mobile and compact optical PM sensors. With this aim, this paper gives an overview of the most recent advances in mobile optical particle counters (OPCs) and camera-based optical devices to detect particulate matter concentration. Firstly, the paper summarizes the particulate matter effects on human health and the environment and introduces the major particulate matter classes, sources, and characteristics. Then, it illustrates the different theories, detection methods, and operating principles of the newly developed portable optical sensors based on light scattering (OPCs) and image processing (camera-based sensors), including their advantages and disadvantages. A discussion concludes the review by comparing different novel optical devices in terms of structures, parameters, and detection sensitivity.

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“…(a) Inflatable boom geometry and dimensions; (b) Partitions.The membrane of the inflatable is a single layer of low-density polyethylene (LDPE) with a thickness of = 0.0000508 and density of = 920 3 . The mechanical properties of LDPE adapted from information available in the literature[39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54]. The LDPE material is assumed to behave as an orthotropic material with tensile strengths in the warp and fill directions.…”

mentioning

confidence: 99%

Finite Element Simulation of Large-Scale Confined Inflatable Structures

Pecora¹

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The measurement of Young’s modulus of thin films using secondary laser speckle patterns

Cited by 6 publications

References 32 publications

Self‐supporting‐film from starch, poly(vinyl alcohol), and glutaraldehyde: Optimization of composition using response surface methodology

Self‐supporting‐film from starch, poly(vinyl alcohol), and glutaraldehyde: Optimization of composition using response surface methodology

Review of the Newly Developed, Mobile Optical Sensors for Real-Time Measurement of the Atmospheric Particulate Matter Concentration

Finite Element Simulation of Large-Scale Confined Inflatable Structures

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