Design and Testing
The short beam shear test
Dr. Don Adams (Wyoming Test Fixtures Inc., Salt Lake City, Utah) discusses short beam shear testing methodology.
Read More
Fastener shear test methods
Dr. Donald Adams (Wyoming Test Fixtures, Salt Lake City, Utah) appraises existing methods for testing the performance of fasteners loaded in transverse shear.
Read More
Guide for Testing Polymer Matrix Composite Materials
Dr. Donald Adams offers insight into ASTM D 4762, a compendium of knowledge about standards relevant to testing polymer composites.
Read More
Block shear strength of adhesive bonds
Dr. Don Adams describes two methods (ASTM D 905 and ASTM D 4501) for loading adhesive bonds in direct shear while minimizing undesirable peel and through-thickness tensile stresses.
Read More
Additional grip types for tensile test specimens
Dr. Don Adams follows up a previous discussion of wedge grips for testing tensile specimens with a sampling of other grip types.
Read More
Shear test methods: Iosipescu vs. V-Notched Rail
Dr. Don Adams asks and suggests a likely answer to the question Which shear test method is best?
Read More
A comparison of shear test methods
Dr. Don Adams compares the shear test methods that are currently available to the composite industry.
Read More
V-Notch Rail Shear test (ASTM D 7078-05)
Dr. Don Adams introduces HPC readers to the The V-Notched Rail shear test method, approved as ASTM Standard D 7078-05 by ASTM Committee D-30 in March of 2005.
Read More
Direct measurement of laminate through-thickness tensile strength
Although there are indirect methods for determining the through-thickness tensile strength of a solid laminate direct loading can be achieved, using ASTM test methods.
Read More
Mixed-mode fracture toughness of composites
During the 1970s, fracture toughness testing of composite materials developed a very poor reputation, primarily due to failed attempts to directly adopt metals theory and corresponding test methods. However, the basic principles of fracture mechanics remained valid.
Read More