Unspecified Cesar Enrique Dominguez Profile

Cesar Enrique Dominguez

at Los Alamos National Lab

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 18 April 2023 Presentation + Paper

Additive manufacturing of highly flexible impact wave propagation sensor

Md Sahid Hassan, Saqlain Zaman, Aaron Rodriguez, Laura Molina, Cesar Enrique Dominguez, Yirong Lin

Proceedings Volume 12484, 124840B (2023) https://doi.org/10.1117/12.2664163

KEYWORDS: Sensors, Printing, Wave propagation, 3D printing, Polydimethylsiloxane, Electrodes, Metals, Piezoelectric materials, Matrices, Scanning electron microscopy

Read Abstract +

The key to monitoring structural health and defect detection of materials is the capacity to detect impact waves and their propagation through materials. A sensor must be extremely flexible and have a complex shape to detect impact waves from a certain type of construction. Complex sensors can be produced using direct ink write (DIW). In this article, the DIW approach is used to create a flexible impact wave propagation sensor (IWPS). Barium titanate (BaTiO3, or BTO), a ferroelectric ceramic material, is dispersed in polydimethylsiloxane (PDMS), which not only increases the flexibility of the 3D-printed sensor but also assures a consistent piezoelectric response across the entire sensor. This study investigated the impact load that caused an impact wave in a flexible sensor and its response to the impact load-generated impact wave. On BTO/PDMS stretchable composites, MWCNT (multi-walled carbon nanotube) based electrodes were printed using the DIW's multi-material printing capability. After contact poling of IWPS, 50wt% of BTO in the PDMS matrix produced a piezoelectric coefficient of 20 pC/N. Applying impact loading at the sensor's center caused an impact wave which eventually vanished as it got further away from the applied impact load's origin. The output voltage from several IWPS nodes was measured in order to characterize the propagation of impact waves. Additionally, the particle-wave velocity of a specific material attached to IWPS was calculated in this study using the voltage response time differences at various sensor locations. The particle-wave velocities of stainless steel (SS) and low-density polyethylene (LDPE) were measured using the specially built IWPS and were found to be 5625 m/s and 2000 m/s, respectively. These values are comparable with their theoretical values.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years