ASTM D3163-96

Standard Test Method for Determining Strength of Adhesively Bonded Rigid Plastic Lap-Shear Joints in Shear by Tension Loading

SCOPE
1.1 This test method is intended to complement Test Method D1002 and extend its application to single-lap shear adhesive joints of rigid plastic adherends. The test method is useful for generating comparative shear strength data for joints made from a number of plastics. It can also provide a means by which several plastic surface treatments can be compared.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
1.3 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Mar-2001
• ICS: 83.180 - Adhesives
• Technical Committee: D14 - Adhesives
• Drafting Committee: D14.40 - Adhesives for Plastics

Relations

• Replaced By: ASTM D3163-01 - Standard Test Method for Determining Strength of Adhesively Bonded Rigid Plastic Lap-Shear Joints in Shear by Tension Loading
• Effective Date: 10-Mar-2001
• Referred By: ASTM D5573-99(2019) - Standard Practice for Classifying Failure Modes in Fiber-Reinforced-Plastic (FRP) Joints
• Effective Date: 10-Mar-2001
• Referred By: ASTM D6465-99(2016) - Standard Guide for Selecting Aerospace and General Purpose Adhesives and Sealants
• Effective Date: 10-Mar-2001
• Referred By: ASTM D4896-01(2016) - Standard Guide for Use of Adhesive-Bonded Single Lap-Joint Specimen Test Results
• Effective Date: 10-Mar-2001
• Referred By: ASTM D3164-03(2017) - Standard Test Method for Strength Properties of Adhesively Bonded Plastic Lap-Shear Sandwich Joints in Shear by Tension Loading
• Effective Date: 10-Mar-2001
• Referred By: ASTM D5687/D5687M-20 - Standard Guide for Preparation of Flat Composite Panels with Processing Guidelines for Specimen Preparation
• Effective Date: 10-Mar-2001
• Referred By: ASTM D5868-01(2023) - Standard Test Method for Lap Shear Adhesion for Fiber Reinforced Plastic (FRP) Bonding
• Effective Date: 10-Mar-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3163 – 96
Standard Test Method for
Determining Strength of Adhesively Bonded Rigid Plastic
Lap-Shear Joints in Shear by Tension Loading
This standard is issued under the fixed designation D 3163; 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 can be compared. This test method is intended to meet such a
need.
1.1 This test method is intended to complement Test Method
4.2 This test method is limited to test temperatures below
D 1002 and extend its application to single-lap shear adhesive
the softening point of the subject adherends, and is not
joints of rigid plastic adherends. The test method is useful for
intended for use on anisotropic adherends such as reinforced
generating comparative shear strength data for joints made
plastic laminates.
from a number of plastics. It can also provide a means by
4.3 The misuse of strength values obtained from this test
which several plastic surface treatments can be compared.
method as allowable design-stress values for structural joints
1.2 The values stated in SI units are to be regarded as the
could lead to product failure, property damage, and human
standard. The values in parentheses are for information only.
injury. The apparent shear strength of an adhesive obtained
1.3 This standard does not purport to address all of the
from a given small single-lap specimen may differ from that
safety concerns, if any, associated with its use. It is the
obtained from a joint made with different adherends or by a
responsibility of the user of this standard to establish appro-
different bonding process. The normal variation of temperature
priate safety and health practices and determine the applica-
and moisture in the service environment causes the adherends
bility of regulatory limitations prior to use.
and the adhesive to swell and shrink. The adherends and
2. Referenced Documents adhesive are likely to have different thermal and moisture
coefficients of expansion. Even in small specimens, short-term
2.1 ASTM Standards:
environmental changes can induce internal stresses or chemical
D 907 Terminology of Adhesives
changes in the adhesive that permanently affect the apparent
D 1002 Test Method for Apparent Shear Strength of Single-
strength and other mechanical properties of the adhesive. The
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
problem of predicting joint behavior in a changing environ-
sion Loading (Metal-to-Metal)
ment is even more difficult if a different type of adherend is
D 2093 Practice for Preparation of Surfaces of Plastics Prior
used in a larger structural joint than was used in the small
to Adhesive Bonding
specimen.
D 4896 Guide for Use of Adhesive-Bonded Single Lap-
4.3.1 The apparent shear strength measured with a single-
Joint Specimen Test Results
lap specimen is not suitable for determining allowable design
3. Terminology
stresses for designing structural joints that differ in any manner
from the joints tested without thorough analysis and under-
3.1 Definitions—Many of the terms used in this test method
standing of the joint and adhesive behaviors.
are defined in Terminology D 907.
4.3.2 Single-lap tests may be used for comparing and
4. Significance and Use
selecting adhesives or bonding processes for susceptibility to
fatigue and environmental changes, but such comparisons must
4.1 Due to the increased use of adhesive-bonded plastics as
be made with great caution since different adhesives may
a result of the inherent advantages afforded by bonded rather
respond differently in different joints. See Guide D 4896 for
than mechanically fastened joints, particularly the alleviation
further discussion of the concepts relative to interpretation of
of stress raisers and stress cracking, there is a need for standard
adhesive bonded single-lap joints.
tests by which joints of various plastic substrates and adhesives
5. Apparatus
5.1 Testing Machine, conforming to the requirements of and
having the capabilities of the machine prescribed in Test
This test method is under the jurisdiction of ASTM Committee D-14 on
Adhesives and is the direct responsibility of Subcommittee D14.40 on Adhesives for
Method D 1002. The grips are self-aligning and capable of
Plastics.
securely grasping the specimen throughout the test, without
Current edition approved Sept. 10, 1996. Published November 1996. Originally
allowing the specimen to slip.
published as D 3163 – 73. Last previous edition D 3163 – 92.
Annual Book of ASTM Standards, Vol 15.06.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 3163
5.2 Temperature-Controlling Equipment, capable of main- temperature does not adversely affect the mechanical proper-
taining the test temperature to 63°C (65°F). If ambient ties of the adherends.
laboratory conditions are employed the same degree of control
6.4 Cut test specimens from the bonded panels pictured in
is required. Fig. 1. Cut the specimens without overheating or otherwise
phy
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