ASTM D2295-96

Standard Test Method for Strength Properties of Adhesives in Shear by Tension Loading at Elevated Temperatures (Metal-to-Metal)

SCOPE
1.1 This test method covers the determination of the comparative shear strengths of adhesives for bonding metals when tested on a standard specimen and under specified conditions of preparation and testing at elevated temperatures.  
1.2 This test method is applicable to the temperature range from 315 to 850°C (600 to 1500°F).  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Sep-1996
• Technical Committee: D14 - Adhesives
• Drafting Committee: D14.80 - Metal Bonding Adhesives

Relations

• Replaced By: ASTM D2295-96(2002) - Standard Test Method for Strength Properties of Adhesives in Shear by Tension Loading at Elevated Temperatures (Metal-to-Metal)
• Effective Date: 10-Sep-1996

Standards Content (Sample)

Designation: D 2295 – 96
Standard Test Method for
Strength Properties of Adhesives in Shear by Tension
1
Loading at Elevated Temperatures (Metal-to-Metal)
This standard is issued under the fixed designation D 2295; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Apparatus
1.1 This test method covers the determination of the com- 5.1 Testing Machine, conforming to the requirements of Test
parative shear strengths of adhesives for bonding metals when Method D 638. Use pin-type grips as shown in Fig. 1 to hold
tested on a standard specimen and under specified conditions of the test specimen.
preparation and testing at elevated temperatures. 5.2 Heating Equipment, consisting of a radiant heat source,
1.2 This test method is applicable to the temperature range backed by a high-efficiency reflector for the purpose of
from 315 to 850°C (600 to 1500°F). obtaining the desired heat flux. A suitable lamp arrangement
5
1.3 The values stated in SI units are to be regarded as the for heating a specimen is shown in Fig. 2.
standard. The values given in parentheses are for information
6. Test Specimens
only.
6.1 Cut test specimens from panels shown in Fig. 3(a).
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the These test specimens’ form and dimensions are shown in Fig.
3(b). The specimens are similar to the tension lap shear
responsibility of the user of this standard to consult and
establish appropriate safety and health practices and deter- specimen described in Fig. 1 of Test Method D 1002, except
that pin-type grips are used.
mine the applicability of regulatory limitations prior to use.
6.2 Base the selection of materials on the test temperature
2. Referenced Documents
range. The following grades of steel are recommended, al-
2.1 ASTM Standards: though use of other types of heat-resistant steel is permitted:
A 167 Specification for Stainless and Heat-Resisting
Metal Designation
2
Steel, corrosion-resistant (18-8) plate, sheet, and A 167, Type 302
Chromium-Nickel Steel Plate, Sheet, and Strip
strip
3
D 638 Test Method for Tensile Properties of Plastics
Steel plate, sheet, and strip 17-7PH, TH 1050, cor- MIL-S-25043
4
D 907 Terminology of Adhesives rosion-resistant, precipitation hardened
D 1002 Test Method for Apparent Shear Strength of Single-
The nominal thickness for the sheet 1.270 mm (0.050 in.).
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
4
sion Loading (Metal-to-Metal)
7. Preparation of Test Specimens
7.1 Cut test specimens as shown in Fig. 3(b) to dimensions
3. Terminology
from the test panel. Measure the width of the specimen and the
3.1 Many terms in this test method are defined in Terminol-
length of the overlap to the nearest 0.25 mm (0.01 in.).
ogy D 907.
7.2 Prepare test specimens by bonding individual strips as
shown in Fig. 3(b). Machine unbonded individual strips to size
4. Significance and Use
and free from burrs or other irregularities.
4.1 Comparative strength of adhesive bonds at elevated
7.3 Uniformly coat both sides of the dummy and test
temperatures allows for better selection of adhesives that must
specimens with carbon black as shown in Fig. 3(b).
perform at temperatures above normal. This test method is
useful in supplying such information.
8. Procedure
8.1 Place the specimens in the pin-type grips of the testing
machine so that the long axis of the test specimen coincides
with the direction of applied pull through the center line of the
1
This test method is under the jurisdiction of ASTM Committee D-14 on
grip assembly.
Adhesives and is the direct responsibility of Subcommittee D14.80 on Metal
Bonding Adhesives.
8.2 Heat the specimen uniformly in the bond area using a
Current edition approved Sept. 10, 1996. Published November 1996. Originally
published as D 2295 – 64 T. Last previous edition D 2295 – 92.
2
5
Annual Book of ASTM Standards, Vol 01.03.
The General Electric 100 T3/CL tubular quartz lamp has been found suitable
3
Annual Book of ASTM Standards, Vol 08.01.
for this purpose. A lamp-reflector combination suitable for this purpose may be
4
Annual Book of ASTM Standards, Vol 15.06.
obtained from Research, Inc., Northfield, MN.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1

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D 2295
(a)(b)
FIG. 3 Form and Dimension of Bonded Panel and Test Specimen
FIG. 1 Specimen Holder
FIG. 2 Heat Lamp Arrangement
FIG. 4 Thermocouple Location
radiant source. Ensure that the required bondline temperature is
this failure (cohesion in adhesive or metal, or adhesion) for
reached within a prescribed period of time.
each specimen. Express all failing loads in megapascals (or
8.
...