Dr. Shawn J. Beard Profile

Dr. Shawn J. Beard

Chief Technology Officer at Acellent Technologies Inc

SPIE Involvement:

Conference Program Committee | Author

Publications (17)

PROCEEDINGS ARTICLE | April 1, 2011

Integrated material state awareness system with self-learning symbiotic diagnostic algorithms and models

Proc. SPIE. 7984, Health Monitoring of Structural and Biological Systems 2011

KEYWORDS: Actuators, Modulation, Sensors, Inspection, Diagnostics, Ultrasonics, Wave propagation, Structural health monitoring, Algorithm development, System integration

Read Abstract

PROCEEDINGS ARTICLE | April 9, 2010

Damage quantification using smart patch system for hot spot monitoring

Proc. SPIE. 7650, Health Monitoring of Structural and Biological Systems 2010

KEYWORDS: Statistical analysis, Detection and tracking algorithms, Data modeling, Sensors, Calibration, Structural health monitoring, Damage detection, Algorithm development, Expectation maximization algorithms, Data analysis

Read Abstract

PROCEEDINGS ARTICLE | April 1, 2010

Multifunctional sensor network for structural state sensing and structural health monitoring

Proc. SPIE. 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010

KEYWORDS: Sensors, Composites, Manufacturing, Diagnostics, Sensor networks, Data processing, Damage detection, Sensing systems, Aerodynamics, Temperature metrology

Read Abstract

PROCEEDINGS ARTICLE | April 8, 2009

SmartComposite system for impact damage detection on composite structures

Proc. SPIE. 7295, Health Monitoring of Structural and Biological Systems 2009

KEYWORDS: Sensors, Composites, Manufacturing, Diagnostics, Sensor networks, Wave propagation, Signal processing, Structural health monitoring, Damage detection, Environmental sensing

Read Abstract

PROCEEDINGS ARTICLE | April 8, 2009

Smart patch for monitoring the integrity of steel frame joints

Proc. SPIE. 7294, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009

KEYWORDS: Actuators, Sensors, Interfaces, Inspection, Buildings, Earthquakes, Sensor networks, Structural health monitoring, Software development, Bridges

Read Abstract

PROCEEDINGS ARTICLE | April 16, 2008

Structural health monitoring: an enabler for responsive satellites

Proc. SPIE. 6935, Health Monitoring of Structural and Biological Systems 2008

KEYWORDS: Defense and security, Visual process modeling, Data modeling, Sensors, Satellites, Structural health monitoring, Aluminum, Satellite communications, Space operations, 3D displays

Read Abstract

PROCEEDINGS ARTICLE | April 8, 2008

SMART solutions for composite structures

Proc. SPIE. 6934, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2008

KEYWORDS: Switches, Detection and tracking algorithms, Sensors, Metals, Composites, Diagnostics, Sensor networks, Structural health monitoring, Damage detection, Temperature metrology

Read Abstract

PROCEEDINGS ARTICLE | April 27, 2007

A new SMART sensing system for aerospace structures

Proc. SPIE. 6561, Unmanned Systems Technology IX

KEYWORDS: Unmanned aerial vehicles, Sensors, Composites, Inspection, Diagnostics, Sensor networks, Data acquisition, Structural health monitoring, Sensing systems, Unmanned vehicles

Read Abstract

PROCEEDINGS ARTICLE | April 19, 2007

Responsive satellites and the need for structural health monitoring

Proc. SPIE. 6531, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2007

KEYWORDS: Sensors, Satellites, Diagnostics, Signal processing, Structural health monitoring, Satellite communications, Connectors, Analytical research, Space operations, 3D displays

Read Abstract

PROCEEDINGS ARTICLE | April 11, 2007

Design of a robust SHM system for composite structures

Proc. SPIE. 6527, Industrial and Commercial Applications of Smart Structures Technologies 2007

KEYWORDS: Sensors, Composites, Reliability, Inspection, Sensor networks, Transducers, Signal processing, Structural health monitoring, Damage detection, Environmental sensing

Read Abstract

PROCEEDINGS ARTICLE | May 10, 2006

Impact detection and analysis/health monitoring system for composites

Proc. SPIE. 6222, Sensors for Propulsion Measurement Applications

KEYWORDS: Rockets, Sensors, Calibration, Composites, Manufacturing

Read Abstract

PROCEEDINGS ARTICLE | March 30, 2006

In situ monitoring of the integrity of bonded repair patches on aircraft and civil infrastructures

Proc. SPIE. 6179, Advanced Sensor Technologies for Nondestructive Evaluation and Structural Health Monitoring II

KEYWORDS: Ferroelectric materials, Sensors, Metals, Composites, Inspection, Diagnostics, Signal processing, Structural health monitoring, Data centers, Adhesives

Read Abstract

Monitoring the continued health of aircraft subsystems and identifying problems before they affect airworthiness has been a long-term goal of the aviation industry. Because in-service conditions and failure modes experienced by structures are generally complex and unknown, conservative calendar-based or usage-based scheduled maintenance practices are overly time-consuming, labor-intensive and expensive. Metal structures such as helicopters and other transportation systems are likely to develop fatigue cracks under cyclic loads and corrosive service environments. Early detection of cracks is a key element to prevent catastrophic failure and prolong structural life. Furthermore, as structures age, maintenance service frequency and costs increase while performance and availability decrease. Current non-destructive inspection (NDI) techniques that can potentially be used for this purpose typically involve complex, time-intensive procedures, which are labor-intensive and expensive. Most techniques require access to the damaged area on at least one side, and sometimes on both sides. This can be very difficult for monitoring of certain inaccessible regions. In those cases, inspection may require removal of access panels or even structural disassembly. Once access has been obtained, automated inspection techniques likely will not be practical due to the bulk of the required equipment. Results obtained from these techniques may also be sensitive to the sweep speed, tool orientation, and downward pressure. This can be especially problematic for hand-held inspection tools where none of these parameters is mechanically controlled. As a result, data can vary drastically from one inspection to the next, from one technician to the next, and even from one sweep to the next. Structural health monitoring (SHM) offers the promise of a paradigm shift from schedule-driven maintenance to condition-based maintenance (CBM) of assets. Sensors embedded permanently in aircraft safety critical structures that can monitor damage can provide for improved reliability and streamlining of aircraft maintenance. Early detection of damage such as fatigue crack initiation can improve personnel safety and prolong service life. This paper presents the testing of an acousto-ultrasonic piezoelectric sensor based structural health monitoring system for real-time monitoring of fatigue cracks and disbonds in bonded repairs. The system utilizes a network of distributed miniature piezoelectric sensors/actuators embedded on a thin dielectric carrier film, to query, monitor and evaluate the condition of a structure. The sensor layers are extremely flexible and can be integrated with any type of metal or composite structure. Diagnostic signals obtained from a structure during structural monitoring are processed by a portable diagnostic unit. With appropriate diagnostic software, the signals can be analyzed to ascertain the integrity of the structure being monitored. Details on the system, its integration and examples of detection of fatigue crack and disbond growth and quantification for bonded repairs will be presented here.

PROCEEDINGS ARTICLE | May 5, 2005

Practical issues in real-world implementation of structural health monitoring systems

Proc. SPIE. 5762, Smart Structures and Materials 2005: Industrial and Commercial Applications of Smart Structures Technologies

KEYWORDS: Actuators, Sensors, Calibration, Composites, Reliability, Inspection, Sensor networks, Structural health monitoring, Active remote sensing, Environmental sensing

Read Abstract

PROCEEDINGS ARTICLE | July 14, 2004

Potential applications of SMART Layer technology for homeland security

Proc. SPIE. 5395, Nondestructive Detection and Measurement for Homeland Security II

KEYWORDS: Radar, Actuators, Homeland security, Sensors, Metals, Composites, Manufacturing, Inspection, Diagnostics, Missiles

Read Abstract

PROCEEDINGS ARTICLE | August 14, 2003

Monitoring the integrity of filament-wound structures using built-in sensor networks

Proc. SPIE. 5054, Smart Structures and Materials 2003: Industrial and Commercial Applications of Smart Structures Technologies

KEYWORDS: Rockets, Sensors, Composites, Manufacturing, Inspection, Diagnostics, Sensor networks, Domes, Aluminum, Prototyping

Read Abstract

PROCEEDINGS ARTICLE | July 15, 2002

Advances in utilization of structurally integrated sensor networks for health monitoring in commercial applications

Proc. SPIE. 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems

KEYWORDS: Actuators, Aerospace engineering, Sensors, Composites, Manufacturing, Inspection, Diagnostics, Fiber optics sensors, Sensor networks, Structural health monitoring

Read Abstract

PROCEEDINGS ARTICLE | June 14, 2001

SMART Layer and SMART Suitcase for structural health monitoring applications

Proc. SPIE. 4332, Smart Structures and Materials 2001: Industrial and Commercial Applications of Smart Structures Technologies

KEYWORDS: Actuators, Safety, Sensors, Composites, Interfaces, Inspection, Diagnostics, Sensor networks, Signal processing, Structural health monitoring

Read Abstract

Showing 5 of 17 publications

Conference Committee Involvement (3)

Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security VII

10 March 2013 | San Diego, California, United States

Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security VI

12 March 2012 | San Diego, California, United States

Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security V

7 March 2011 | San Diego, California, United States

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

Keywords/Phrases

Search In:

Publication Years