PEC材料工程英语证书考试材料试验词汇.doc

PEC材料工程英语证书考试-材料实验词汇
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Adherence—The extent to which a coating bonds to a substrate.
Adherence Index--Measurematerials or materials in form of small diameter wire it is difficult to
distinguish between breaking load and the maximum load developed, so the latter is considered
the breaking load.
Breaking Strength—Stress required rupturing the specimen.
GLOSSARY OF MATERIALS TESTING
Bulk Modulus of Elasticity—Ratio of Stress to change in volume of a material subjected to
axial loading. Related to Modulus of Elasticity (E) and Poisson's Ratio (r) by the following
equation: Bulk Modulus K=E/3(1-2r).
Cleavage Strength—Tensile load required to cause separation of a 1-in. long metal-to-metal
adhesive bond under the conditions set in ASTM D-1062.
Climbing Drum Peel Test—Method for determining Peel Resistance of adhesive bond between
a relatively flexible and a rigid material. (ASTM D-1781).
Coefficient of Elasticity—An alternate term for Modulus of Elasticity.
Cohesive Strength—Theoretical Stress that causes fracture in tensile test if material exhibits no
plastic deformation.
Complex Modulus—Measure of dynamic mechanical properties of a material, taking into
account energy dissipated as heat during deformation and Recovery. It is equal to the sum of
static modulus of a material and its loss modulus. In the case of shear loading, it is called
dynamic modulus.
Compressibility—Extent to which a material is compressed in test for compressibility and
Recovery of gasket materials. It is usually reported with Recovery.
Compressibility and Recovery Test—Method for measuring behavior of gasket materials under
short time compressive loading at room temperature. ASTM F-36 outlines a standard procedure.
This test is not designed to indicate long term (creep) behavior and should not be confused
with the plastometer test.
Compression—Typically a direction of force applied to a sample to decrease its he