Elasticity and Coefficient of Thermal Expansion

We must also mention the danger that can exist when adhesive and adherend mismatches produce unrecognized cracking in the interfacial area due to severe weathering conditions. These cracks in themselves may be insufficient to fail the bondline but, with continued entrance of 

Adherend or Adhesive Modulus (103 MPa) Linear coefficient of expansion (10-6 m/moQ 

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