MaTestLab > Test Standards > ASTM D3528 Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading
Last updated 17th March 2025
ASTM D3528 Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading
ASTM D3528 specifies the method for measuring the tensile shear strengths of adhesive materials used for metal bonding. It involves testing on a standard specimen that minimizes peeling and replicates the adhesive stress distribution found in typical low-peel production-type joints. The reproducibility of the obtained strengths depends on adherence to specified preparation and testing conditions. ASTM D3528 is aimed at providing shear property data to aid in adhesive process control and specification. It may also be helpful in adhesive research and development endeavors.
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ASTM D3528 Introduction
This test method is tailored to yield shear property data crucial for the process control and specification of adhesives. Additionally, it can serve as a valuable tool in the research and development of adhesives. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM D3528 tests for our clients. It’s important to note that lap shear properties can vary based on factors such as specimen configuration, preparation, testing speed, and environmental conditions.
ASTM D3528 Test Method
Bonding and Curing of Metal Plates
In the ASTM D3528 test process, metal plates bonded with the adhesive are initially cured in one of the specified configurations. Following this, the assembly undergoes slicing into double-lap sheared specimens with uniform width. To minimize potential edge effects, the test specimens are carefully cut from larger assemblies.
Testing by Universal Testing Machine
The universal testing machine pulls the specimens at a rate of 1.27 millimeters/minute till they tear. Three potential failures can happen throughout the test procedure: cohesive failure, glue failure, or a crack in a single substrate.
ASTM D3528 Equipment and Sample Preparation
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ASTM D3528 testing
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Specimen Detail
Adhesives used to join metal surfaces are specified in this test.
Specimen Size
The ASTM D3528 test method specifies that lap shear specimens should be 25.4 mm wide, with a 12.7 mm overlap at each bond.
ASTM D3528 Test Result and Interpretation
ASTM D3528 successfully finds out the shear strength of adhesive materials that are used to join different metal surfaces together. Typical sample specimens are used to reduce peel forces.
It is used in automotive, construction, and manufacturing to determine the strength of double-lap shear adhesive joints under tensile loads to ensure reliability in bonding lightweight materials and durability under mechanical stresses.
Materials Commonly Tested with ASTM D3528
The test evaluates adhesives to materials such as aluminum, steel, glass fiber-reinforced composites, and high-performance polymers, specifically used in aerospace and automotive due to their high shear strength as well as environmental resistance.
Common Challenges and Troubleshooting in ASTM D3528 Testing
Challenges of testing include accurate specimen alignment to avoid skewed results and variability in adhesive curing conditions. Troubleshooting requires strict adherence to curing protocols, specialized jigs, and multiple tests to identify and mitigate inconsistencies.
Safety and Best Practices in ASTM D3528 Testing
Testing should ensure that appropriate PPE has been implemented, machines are properly calibrated, environmental conditions are controlled to be the same each time, and follows the manufacturer’s guide for preparation and application of adhesives.
Importance of ASTM D3528
It is an important method for determining adhesive performance in structural applications, ensuring reliability and safety, reducing the risk of joint failure, and promoting industry compliance, thereby boosting end-user confidence and product longevity in demanding environments.
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Where can I get the astm d3528 tested?
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Please contact us for a detailed quote for your astm d3528 testing needs. Cost incurred to carry out different astm d3528 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm d3528?
The required number of samples or specimens should comply with the procedure given in the astm d3528 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
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MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm d3528 test?
The turnaround time for astm d3528 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm d3528 tested?
You can share your astm d3528 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d3528 test to various testing techniques.
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