The development and application of the load-stroke hysteresis technique for evaluating fatigue damage development in composite materials

A new experimental method was developed to measure the hysteresis loss during a fatigue test from the load and stroke signals of a standard servo-hydraulic materials testing system. The method was used to characterize changes in properties and performance induced by long-term cyclic loading. Advantages of the load-stroke hysteresis loop include: (1) the fact that contact with the specimen is not required, (2) the fatigue test is not interrupted for data collection, (3) the measured quantity (the hysteresis loop area) is directly related to the (damage) events that alter material properties and life, and (4) a quantitative measure of damage extent and development is obtained.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Engineering Mechanics

Department dc:contributor.department

Engineering Mechanics

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

1994

Author dc:creator

• Baxter, Thomas

Chair dc:contributor.committeechair

• Reifsnider, Kenneth L.

Committee members dc:contributor.committeemember

• Mook, Dean T.
• Hendricks, Scott L.

• fatigue tests
• hysteresis loss

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Dc Identifier Other

etd-09052009-040716

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/44593