Accession Number:

ADA411472

Title:

Tabbing Guide for Composite Test Specimens

Descriptive Note:

Final rept.

Corporate Author:

UTAH UNIV SALT LAKE CITY DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

2002-10-01

Pagination or Media Count:

74.0

Abstract:

This document provides guidelines for selecting suitable tabbing configurations for composite material test specimens. Additionally, a practical methodology is detailed for preparing and applying tabs to composite test specimens. This document is based on research performed within the Mechanical Engineering Department at the University of Utah and previously by the Composite Materials Research Group CMRG at the University of Wyoming, both sponsored by the Federal Aviation Administration. The use of composite materials as a material of choice for structural applications has seen tremendous growth over the last several decades. This growth has resulted in a proliferation of both commercial and in-house composite material testing facilities. A reoccurring problem in the process of materials testing is the proper selection of tabbing configuration and the proper bonding of end tabs onto test specimens. This is a fundamental and a critical step in the testing process since the tabs protect the specimen as well as introduce the load into the specimen. Those who perform composite material testing on a routine basis have presumably developed tabbed specimen configurations and tabbing procedures that provide accurate and repeatable results. The suggested procedures offered here can be compared with those already being used. For those users who do material testing less frequently, this Guide should be especially useful. The first section provides an introduction to the preparation and testing of tabbed composite specimens and overviews the need for tabs on composite specimens. Section 2 discusses factors affecting the selection of tabbing materials and adhesives. Common choices for tabbing materials and methods for determining adhesive properties are described. Data relating to the performance of typical adhesives is given.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE