Characterizing the structural response of wood baseball bats

Material Information

Characterizing the structural response of wood baseball bats
Negler, Michael James
Place of Publication:
Denver, CO
University of Colorado Denver
Publication Date:

Thesis/Dissertation Information

Master's ( Master of science)
Degree Grantor:
University of Colorado Denver
Degree Divisions:
Department of Civil Engineering, CU Denver
Degree Disciplines:
Civil engineering
Committee Chair:
Rutz, Frederick R.
Committee Members:
Rens, Kevin L.
Marxhausen, Peter D.


Major League Baseball rules require that batters use a round, solid piece of wood to hit a pitched baseball. Maple and Ash account for 95% of the wood bats used in the major leagues. In this research, both Maple and Ash wood baseball bats were instrumented with strain gages along the length of the bat. The response of the bat was recorded, during swings without ball contact and during swings with ball contact. In order to closely replicate actual professional baseball conditions, a former professional baseball player was the batter, and he swung the instrumented bats and hit balls thrown by a pitching machine between 80-90 mph. From analysis of the strain gage results, the flexural response of wood bats and the stresses in the wood during the swing and at contact with the ball were determined.

Record Information

Source Institution:
University of Colorado Denver
Holding Location:
Auraria Library
Rights Management:
Copyright Michael James Negler. Permission granted to University of Colorado Denver to digitize and display this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.


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