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Craft Stick Beams

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1996 Annual Conference


Washington, District of Columbia

Publication Date

June 23, 1996

Start Date

June 23, 1996

End Date

June 26, 1996



Page Count


Page Numbers

1.127.1 - 1.127.6



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Paper Authors

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Alan K. Karplus

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NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Session 1664

Craft Stick Beams

Alan K. Karplus Western New England College

Keywords: Beams, Bend Tests, Composite Structures

Prerequisite Knowledge:

The student should 1. know what a craft or popsicle stick is and that it can be bent and broken, 2. be familiar with fiberboard and/or cardboard and that it can be bent and torn apart, and 3. know that sticks of wood and fiberboard can be glued together to form beams of specified dnension.

Objective: This exercise is to provide an phenomenological “hands-on” experience that shows how geometry can affect the load carrying capacity of a material used in construction how different materials have different failure characteristics, and how construction affects the performance of a composite material.

The student will learn to: 1. Fabricate different types of layered beams such as A. Built-up beams of a single material, and B. Composite beams of a mixture of materials, 2. Test these layered beams to determine how and where the beams fails, 3. Use knowledge gained from 1 and 2, to design a layered beam that will fail in a predicted manner, and 4. Capture a knowledge of the effects of lamination, adhesion, and geometry in layered beam construction on beam strength and failure location.

Equipment and Supplies: 1. Forster Craft Sticks, (Forster Inc. Wilton, ME) or popsicle sticks, fiberboard sheets from backs of pads of paper 2. Large Size Paper Cutter 3. Micrometer or Vernier Caliper to measure sample thickness 4. Safety Glasses 5. Glue - Elmer’s Glue AU, Bordon, Inc. Columbus, OH is suggested, but any other glue can be used. In fact, glue type can become a variable. Be sure to use the same glue for ALL samples in a given test. 6. Clamps for holding glued craft sticks (an anvil capable of applying load over the complete craft stick is necessary for quality results) 7. Test Apparatus with three point loading fixture: Instron Load Frame with Load verses Deflection plot output capability or Hydraulic Tester and gage to read “on-the-run” the first maximum load.

:iiiiii’ @#lL.? ) 1996 ASEE Annual Conference Proceedings .

Karplus, A. K. (1996, June), Craft Stick Beams Paper presented at 1996 Annual Conference, Washington, District of Columbia. 10.18260/1-2--5948

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