Lap Shear Testing Services Lab

LAP SHEAR TESTING OF ADHESIVE PROPERTIES OF POLYMER, COMPOSITE MATERIALS

Lap shear testing measures the actual distribution of stress in shear test joints. The stress directions can be multi-axial and non-uniform, varying with position in the bond line, and depends on factors such as the bond layer thickness, adherend thickness, size and shape of fillets, and mechanical properties (stiffness) of the adhesive and adherends.

The purpose of the lap shear test is to assess adhesive properties or bond quality. Testing is conducted using standard tension/compression mechanical test equipment with self-aligning (manual or servo hydraulic wedge-action) grips to hold the specimen.

Lap shear strength testing measures the ability of a material to withstand stresses set in a plane, where the exerted shear force is moving the two substrates in opposite directions. It is one of the most common stresses that a bonded joint can face during service, especially in structural bonding applications. The lap shear strength of an adhesive serves as one of the indicators for its long term sustenance in an application.

To discover more about IMR's lap shear testing capabilities, click here to request a quote, or click the button below.

lap shear testing imr test labs

POLYMER CHARACTERIZATION SERVICES

Accelerated Aging (Heat, Fluids)
Bond Strength
Brookfield Rotational Viscosity
Coefficient of Expansion
Coefficient of Friction
Composite Testing
Compression Set
Compressive Properties (-240ºF to 660ºF)
CPSIA Testing
Dynamic Mechanical Analysis (DMA)
Failure Analysis
Flammability (UL94, FMVSS 302, ISO 3795, SAE J369, ASTM D5132)
Fatigue Testing
Flexural Properties (-240ºF to 660ºF)
Gardner Impact
Glass Transition
Gloss (ASTM D523, D4039)
Hardness Testing (Barcol, Durometer/Shore)
Hazardous Substance Testing
Heat Deflection by TMA (E2092)
Impact Strength
Izod Impact
Kinematic Viscosity
Lap Shear Testing
Melt Flow Rate/Index
Melting Point
Polymer Testing
SEFA Testing
SEM-EDS for Fillers
Taber Abrasion
Tear Resistance of Films & Sheeting
Tear of Rubbers & Elastomers
Tensile Properties (-240F to 660F)
UV Exposure

RELATED SHEAR TESTING METHODS

  • Single Lap Shear
  • Double Lap Shear
  • Lap Strap
  • Thick adherend shear

RELEVANT ACCREDITATIONS

Click here for a complete list of accreditations and certifications for all IMR Test Labs locations.

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